Natural Sciences

Subject of research: the photodiode Au-nAlGaAs-pGaAs-Ag, Au+Zn-p(AlGa)In As-nGaAs-Au, Au-p(A/Ga)InAs-nGaAs-Ag-structurcs, made by a method liquid of epitaxy.
Purpose of work: establishment of a physical nature of processes proceeding in the field of a volumetric charge heterojunction on a basis of arsenide gallium and its connections, and also research of influence of straightening barriers on ampcr's and spectral characteristics of three-barrier structure with various structure hcterowidc.
Methods of research: experimental methods of removal volt-ampcr's, volt -capacitor and spectral characteristics, technique of definition of characteristic parameters on the basis of experimental data.
The results obtained and their novelty:
1. For the first time arc developed multibarrier structures on a basis heterojunction pAlGalnAs-nGaAs and the role of straightening barriers in expansion of a spectral range in area is established.
2. Principles of creation three-barrier photodiode Au-pAlGaInAs-nGaAs:O-Ag-structurcs, quantities,(amounts,) based on a variation, Indium in hcterowidc for various purpose (appointment) for the first time arc offered.
3. Is established, that at excitation Au-pAli)i)SGa()g2^nniAs-nGaAs-Ag-structurc's from the party Ьс1сгослоя the high meanings (importance) of a photocurrent caused fine of area of division of photocarriers and serial compression cuasincytral of a part hcterowidc by a layer of a volumetric charge of locked transitions arc created.
4. Is experimentally shown, that in photodiode to structure the increase of thickness hcterowidc up to the sizes twice large diffusion of length can result in low meanings (importance) of a return current of transition the metal - semiconductor in comparison with a return current heterojunction, that the metal - semiconductor and change of the thermionic mechanism generation is explained by improvement of border.
Practical value: offered in dissertation to job of the recommendation simplify process of the coordination of target parameters of the photoreceiver with entrance parameters of the intensifying cascade photocurrent of devices optoelectronics and systems of telecommunication.
Degree of embed and economic effectivity: the received results arc a basis for development photocurrent of devices for reception and transfer of an optical signal in research-and-production associations Acadcmican sciences of the Republic of Uzbekistan and other instrument-making organizations.
Field of application: technology and designing of the electronic equipment for micro and optoelectmics, and also telecommunication systems, means of transfer and reception of the information.

The aim of research work is to establish the mechanisms of current transfer in /fCdS - wCdS - pSi- и w+CdS - nCdS - wSi- heterostructures that act as injection photodetectors with internal amplification and tunable range of spectral sensitivity and patterns of formation of their volt-farad, dark and light current characteristics.
Scientific novelty' of the research work:
for the first time developed the technology of the obtaining thin CdS films on silicon substrates by sputtering CdS powders in a quasi-closed vacuum system, and /TCdS - /?CdS - pSi and w+CdS - >?CdS - wSiheterostructures using them as injection photodetectors with internal amplification and tunable range of the spectral sensitivity;
it has been experimentally established that /?*CdS - nCdS -pSiheterostructures have a wide range of spectral sensitivity located in the wavelength range 389-1238 nm, with one high «peak» at 475 nm and three small "peaks” have different levels at wavelengths of 618 nm, 740 nm and 821.8 nm, respectively;
it has been prooved experimentally that thermodynamic equilibrium at the interface of the wCdS-pSi- heterojunction creates surface states of an acceptor type with a surface potential y/$= 0,04 eV, which acquire high values ( Vss) for negative polarities of the surface potential and when 0Ss is positive it acquires small values;
it was prooved that with increasing bias voltage, the injection of electrons from the pSi substrate into the base region leads to an increase in the photocurrent and an expansion of the spectral range toward short wavelengths is due to increase of the coefficient of accumulation of the charge carriers;
optimized technological regimesfor obtaining the contact region were found, to thin films of cadmium sulphide consisting of spraying indium in a vacuum to a heterostructure heated to 373 К followed by thermal annealing at 673 К for 30 seconds.

The aim of research work is investigation of processes of formation by the Solgel technology of sensor elements based on thin films of composition SiO2/TiO2, and also elaboration of selective semiconductor gas sensors for determination of NH3 concentrations with using of nanomaterials obtained by Sol-gel process.
The object of the research work. Oxides of metals (Ti, Zn, Fe etc.), the exhaust gases of the enterprises producing mineral fertilizers, ammonia and standard gas mixtures were objects of this investigation.
Scientific novelty of the research work is as follows:
the scientifically novelty of investigation is conceding in following for the first time by using sol-gel technology on the basis of TiO2 and Fe2O3 synthesis of selective GSM for determination of NH3 in mixtures of gases was carried out.
it is shown that modification by oxides of Fe gas-sensitive nanocomposites on the baze of SiO2-TiO2 has leaded to decreasing of temperature sensitivity and increasing of selectivity PPP by NH3.
with the application of selected catalysts and optimal parameters the high sensitivity of determination of NH3 in the presence of H2, CO and CH4 has been ensured.
selectivity of semiconductor determination of NH3 based on the use of gassensitive materials containing catalysts possessed by inadequate activity to the components of the gas mixture has been provided;
the influence of various factors on the metrological, operational and other parameters of PPS-NH3 on the base of 5% Fe2O3-95% TiO2 was determined.
Implementation of the research results.
The results of scientific research works by elaboration of highly effective sensors on ammonia were used in University of Vienna Institut fur Physikalische Chemie in the research project "Composite materials for chemical sensing" (certificate of the University of Vienna from 21 December 2016). The results of investigation were at elaborated used of chemical sensors; study the dynamic, al calibration characteristics of the sensors on NH3, and development of chemical and physico-chemical methods of determination of toxic gases.
PPS obtained in the result of elaboration of selective gas sensitive material have been used in a research grant, F-7-06 "Investigation of the theoretical bases of using of nitrogen - and phosphorus-containing compounds as inhibitors of burning of inflammable materials" (SSU 2012-2.16). With using of the elaborated sensors the influence of nitrogen - and phosphorus-containing antiperences on the kinetics and the mechanism of slowing the combustion process and also density of the textile materials on the rate of flame distribution (certificate FTK-0313/703 of Committee by coordination of development of science and technology dated 14 February 2017).
The structure and volume of the thesis.
The thesis consists from introduction, five chapters, conclusion, bibliography and applications. The volume of the dissertation is 120 pages.

Subject of the inquiry: phosphorites of Central Kyzilkum: ordinary phosphorite flour, dust type fraction, washed dried concentrate, mineralized mass, washed burned concentrate.
Aim of the inquiry: development of effective and economical technology processing of preception unary phosphate fertilizers on the basis decomposition unconccntratcd phosphorites of Central Kyzilkum by phosphoric gypsum pulp, also nitrogenous phosphatic fertilizers by method interaction phosphorites of Kyzilkum with partially ammonited wet process phosphoric acid.
Methods of inquiry: chemical and X-ray graphical analysis, IR-spcctroscopical analysis.
The results achieved and their novelty: for the first time the opportunity of reception concentrated unary phosphate and nitrogenous phosphatic fertilizers by method interaction phosphorites of Kyzilkum with phosphoric gypsum pulp and partially ammonited wet process phosphoric acid arc shown. The rheological properties (density, viscosity) of calcium sulfate phosphatic pulp arc investigated and chemical composition of water insolubility part of calcium phosphate pulp is determined. Agrochemical and physical-chemical properties of received unary phosphate and complex nitrogenous phosphatic fertilizers arc valued.
Practical value: results of holdcd search of scientific basis for creation of technology of reception new types of unary and complex nitrogenous phosphatic fertilizers arc carried. The developed technology allows to involve in manufacture concentrated phosphorus-containcd fertilizers not only the enriched concentrates of phosphorites Central Kyzilkum, but not enriched ordinary phosphorite flour, dust type fractions, also mineralized mass.
Degree of embed and economic effectivity: on the integrated laboratory installation and open join-stock companies of “Ammophos-Maxam” are fulfilled the basic technological parameters of process of reception of unary phosphate fertilizers. The technology of reception nitrogenous phosphatic fertilizers on the integrated laboratory installation with determination of the basic technological parameters of process is approbated. Agrochemical tests on cotton have shown the advantage of the developed fertilizers.
The directed out technical and economic calculations show that the cost price of 1 ton of 100 % sums of P2O5 in unary fertilizer will make accordingly cheaper 399385 sum in comparison with the cost price of suprephos. The cost price of 1 ton of 100 % sums of P2O5 in nitrogenous phosphatic fertilizer under cost in 192604 sum.
Sphere of usage: plants of State joint-stock company “O zkimyosanoat”, agriculture.

The aim of research work The aim of the research work is to develop a technology for the complex processing of Cr(VI) - the containing industrial waste materials, using a untraditional environmentally safe, organic reducing word save dust.
Scientific novelty of the research work is as follows: the reduction properties of wood chips of chromium (VI) ions to chromium (III) in waste solutions, which open cellulose macromolecules arc formed as a result of chemical modifications, as well as an increase in the number of aldehyde group that is rarely found in the cellulose structure, contributes to the intensification of the reduction process;
the dependence of the yield of the product in the process of reduction of chromium (VI) ions to chromium (III) on the mass ratio of chromate ions, reducing agent and sulfuric acid, which is 1: 1: 1.6 ratio, is proved;
Optimal conditions for purification of the processed solution from calcium sulphate and iron (III) hydroxide arc established;
a west less technology for the complex processing of highly toxic spent chromate-containing solutions was developed, followed by the production of metal oxides.

The urgency and relevance of the theme of dissertation. As a result of increase in the processing industry in the world, environmental degradation and the effects of unreasonable use of natural resources, namely the growth needs of the industrial sectors in water resources, to humanity on the agenda raise the new tasks as universal problems. The objective of environmental protection is one of the large-scale, the most acute social problems of modern life and of its solution, the corresponding interests of all peoples, which fully determine the future of civilization.
In accord with the principle of sustainable development of the Republic of Uzbekistan an important primary task is the implementation of a harmonious correspondence sequentia macroeconomic planning with nature conservation policy, in close integration with the social and other sectors of policy. Environmental policy of the republic focused advisable goal to combination the transition from individual protected natural elements in general protected ecological systems along with the development of mechanisms based on the principle of guaranteeing the priority indicators of the human environment.
The main object of improving manufacturing processes and nature conservation acticity, is the modernization and reconstruction of industrial enterprises, reducing environmental impact, improving the efficiency of complex and rational use of natural resources through the implementation of environmentally friendly and resource-saving technologies, including energy recovery sources.
Using a large amount of water in the ore and metallurgical and chemical industries requires the implementation of a package of measures to reduce environmental pollution and introduction into production, from an environmental point of view, low-waste technologies. In the metallurgical, chemical and other industries for the treatment of industrial waste water, as well as the extraction of ions from certain metals, sorption ability, ion exchange sorbents and reagents have been widely used.
Due to the increasing needs of the republic in various assortments of ion exchange sorbents, their introduction is appropriate production based on local raw materials. The problem of the treatment of industrial waste water, as well as demineralization, can solve not only environmental issues, namely, to solve the effective implementation of material resources and raw materials of our country, through the production of import-substituting sorbents and reagents.
The presented dissertation is focused on ensuring the implementation of decisions of the President of the Republic of Uzbekistan PP-1442 dated December 15, 2010 «On the priorities of industrial development of Uzbekistan in 2011-2015» and PP-142 dated May 27, 2013 «On the program of action for environmental protection in Uzbekistan 2013-2017», as well as on the permission of the tasks set out in other normative and legal documents, corresponding to the activity.
The research objective is exposure of the possibility of using ion exchange sorbents in the processes of demineralization, wastewater treatment from metal ions in the chemical and metallurgical industries, the development of methods for the obtaining reagents from waste production and effective ion exchange sorbents based on furfural.
The scientific novelty of the thesis research lies in the following:
The scientific novelty of the research is as follows:
There have been obtained the anion exchanger - sorbents, forming with nonferrous metal ions weakly alkaline multifunctional, thermo-chemically stable complex by polycondensation of furfural benzoguanidin with diphenylguanidine;
It has been obtained that monofunctional carboxyl cation exchanger - sorbent with properties of selective sorption for ions of non-ferrous metals and uranium from industrial solutions by condensation of furfural with acrylic acid;
It has been determined that the dependence of the reaction rate constants, activation energies of the temperature, concentrations of initial materials, catalyst amount, and other factors based on kinetic studies of the process;
It has been found that the correlation dependences of the basic chemical, physical and chemical (sorption of ions of calcium, magnesium, copper, nickel, molybdenum and others., sorption capacity, monofunctionality, the degree of dissociation of the functional groups, and others.) on the chemical composition, physico-chemical and adsorption properties of the initial raw materials;
It has been developed that the technology of using local production of furfural and waste from Kungrat Soda Plant for ion exchange polymer sorbents with different functionality and calcium hydrosilicate with predetermined properties for cleaning and softening processes of industrial wastewater and extraction of nonferrous metal ions.
CONCLUSION
1. It has been recommended that approach for the preparation of weakly alkaline of polyfunctional anion sorbents with complex forming properties based on furfural benzoguanin and diphenylguanidine.
2. There has been the way for producing monofunktsional carboxylic cation exchanger - sorbents having selective sorption capacity to the non-ferrous metal ions and uranyl by polycondensation of furfural with acrylic acid.
3. Based on kinetic studies polycondensation reaction of PEPA, furfural and other monomers it has determined that rate constants, reaction activation energy. It has been shown that dependence of sorbents production technology on the reaction temperature, initial materials concentration, amount of catalyst and other factors.
4. It has been found that correlation dependences of the basic chemical, physical and chemical (sorption of ions of calcium, magnesium, copper, nickel, molybdenum and others., sorption capacity, monofunctionality, the degree of dissociation of the functional groups, and others.) on the chemical composition, physico-chemical and adsorption properties of the initial materials suitable for import substitution sorbents.
5. For the first time there has been used the technology of using waste Kungirat soda zavodi to produce calcium hydrosilicate different functionality with predetermined properties to process industrial wastewater treatment.
6. For the first time there has been developed the novel approach for effective purification of industrial wastewater. It has been found that the degree of purification of the wastewater reached up to 94-98% when used as a reagent of 200-600 mg/1 of calcium hydrosilicate and 100-200 mg/1 of aluminum sulphate coagulant. The basic technological scheme has been proposed.
7. It has been determined that the field of using the sorbents on the basis of chemical analyzes, physical-chemical and sorption properties. It has been recommended that their use for cleaning and softening industrial wastewater such as JSC « Kungrad Soda zavodi», JSC «Bektemir spirt-experimental zavodi» and JSC «Uzmetkombinat».

Subjects of research: Secondary raw materials of processing of carrots.
Purpose of work: developing technology of drying and getting semi-finished products from byproduct of production of fruit and vegetable juices.
Methods of researches: Evaluating the quality of product received from byproduct raw material will be carried out with the modem physical, chemical, organoleptic, physico-chemical methods. Convective drying and arbitration assessment methods arc used.
The received results and their novelty:
- method of system analysis determined the optimal parameters of drying and grinding of recycled juice production;
- developed technology for producing semi-finished powder by processing recycled juice production in hypotonic solution and subsequent drying;
- developed technology of recycling of juice production, arranged production schedules and made technological scheme;
- compared mineral and vitamin compositions, nutritional value and organoleptic characteristics of the product and found the relationship between them.
Practical value:
- developed technology for producing semi-finished powder recycled production of fruit and vegetable juices;
- received a patent for a process of food powders;
- developed the recommendations for the use of the resulting powder in the canning industry and catering;
- research results which arc put in to practice approved by regulations.
Degree of embed and economic efficiency: A new technology applied into production at the plant «Nam-kon» in Kasansay district of Namangan region.
Capacity of the enterprise for manufacture of a food powder makes 100 t/ycar, expected economic benefit reaches 47805457cyw in a year.
Field of application: the Enterprises for processing of vegetables and fruit, a process industry and agriculture.

Subjects of research: Finite dimensional complex Zinbiel algebras, filiform Leibniz algebras.
Purpose of work: To investigate n-dimensional complex filiform Zinbiel algebras, to examine the structural theory of Zinbiel algebras.
Methods of research: In this work methods of structural constants, classification methods, gradation methods and the methods of invariant theory are used.
The results obtained and their novelty: The main results of the work are the following:
- criteria of isomorphism of filiform Leibniz algebras class, natural gradation of which are Lie algebras, is obtained;
- the classification of four-dimensional complex Zinbiel algebras is obtained;
- zero-filiform and filiform complex Zinbiel algebras are described. Based on this description, the derivations of such algebras are investigated. Moreover, the description was extended to the class of complex naturally graded quasi-filiform Zinbiel algebras;
- some properties of characteristic sequence for the Zinbiel algebras are obtained. Furthermore, the classifications of n-dimensional complex Zinbiel algebras with nilindex n-2 with characteristic sequences (n-3, 3) and (n-3, 1, 1, 1) are obtained.
Practical value: The results of the dissertation are of theoretical character.
Degree of embed and economic effectivity: It can be used at reading of special courses.
Field of application: The main scientific results and methods presented in the work can be used in research of other algebras and superalgebras, in the theory of categories, in the study of algebras with various types of gradation, in calculation of cohomological and homological groups.

Subjects of research: the mountain brown soil of Chatkal boisphcra reserve, Oktau parts of Nuratatau.
Purpose of work: identify the role of reliefe, climate and vegetation in both preserving diversity of mountain brown soil. While the gap essentially of priority of topography and climate, law of development and the interconnection, characterize genesis, morphology and propcrtic mountain brown soil.
Methods of research: field researches and analysis of soil arc conducted by conventional methods: by methods of UzSRIC (1963), by L.Tursunov (1988), the mathematic analysis by B.A.Dospckhov (1985).
The results obtained and their novelty: Natural factors of preserving diversity of the mountain brown soil of Chatkal and Nuratatau: first time scientific works is obtained about reliefs, climate's and vegetative Role also has been given charaktcristic of soil cover pedospheres of mountain.
Practical value: by the characteristics of the role of relief, climate and vegetation on vericty mountain brown soils and to develop recommendations for their conservation and efficient using.
Degree of embedded and economic effectivity: Preserving diversity of the mountain brown soil of natural factors that compile evidence based recommendations for the protection of their properties and fertility.
Field of application: Agriculture, Scientific researches, High education.

Subjects of research: the hard withdrawals of soda production, the slime of cleaning brine, slaked lime, lime, limestone, gypsum, Portland cement, concrete, calcium chloride, sodium chloride.
Purpose of work: Development of the chemical-engineering of the bases of obtaining and studying the construction- operational properties of multicomponent Portland cement with the use of hard wastes of soda production as the carbonatccontaining filler and the intensifiers of hardening.
Methods of research: chemical, rocntgcnographic, differential-thermal, electron-microscopic. Methods for physicomcchanical testing of cements, solutions and concretes in accordance with in force standards.
The results obtained and their novelty: Arc obtained high-strength and salt-tolerant cements, solutions and concretes on the basis of the local withdrawals (hard withdrawals of the Kungrad soda plant) of those improving their properties and decreasing prime cost.
It is established that the application of an additive of production waste of the soda ash before quantity 1-30% as the intensifier of hydration and hardening of Portland cement accelerates the process of the hydration of alit component to the 28- daily period respectively as far as 17-45%. Portland cement the containing hard withdrawals of soda production better noted that harden under normal conditions and with the warm moist working; the cement mortar (and concretes), which harden 28 days under normal conditions, before the natural conditions continue to harden with the speed of normal hardening and have sufficiently high strength. It is also established that the finely ground dispersed hard withdrawals arc capable of playing the role of the active microfiller of cement, which makes it possible to decrease its expenditure. The contact zone “concrete block - filler” before the presence of dispersed hard withdrawal has the higher values of microhardness, as a result of the adsorption of portlandite by hard withdrawals, interaction of hard withdrawal with carbonates of calcium and chloride calcium of aluminates and alumos-ferrite.
Practical value: Is for the first time before Uzbekistan established possibility before the large volumes of the utilization of the hard and liquid waste of soda production by their introduction beside the Portland cement as the finely ground mineral filler and the intensifier of hardening with obtaining of effective, cements, which exceed about the construction- operational indices both traditional, and sulfate resistent Portland cement.
Degree of embed and economic effectivity: The technologies proposed arc approved on an industrial scale with the development of multicomponent cement at the Angren cement combine. Is obtained the cement, which corresponds down the requirements of stamp M-500. The manufactured parties of cement arc used beyond Society with the limited responsibility “Bcton invest” in Almalyk city Tashkent region. The articles arc released: the plate of enclosure (ПО), chute is tray (JIK) and fundamental blocks (ФБС) 24.4.6, which correspond down the requirements of stamp M-300. The savings of cement comprises to 20% with the sufficiently good quality of concrete mixture and ferroconcrete constructions. The total volume of the prepared cement 100 T. economic effect with the production of the experimental-industrial party of Portland cement of M500 of Д20 with the hard withdrawals composes 4422469,8 sum. The expected economic effect with the volume 1 mln. t/yr of multicomponent cement will comprise more than 33 billion sum.
Field of application: AK. “Uzkurilishmatcriallari”.

Subjects of the research: emerges the territorial structure a disease population of the Republic of Uzbekistan, its subject is study of the geographic particularities to diseases of the population.
Purpose of work: on base of the analysis territorial problems of medical geography and territorial aspects health of the population, its diseases with provision for influences natural and social-economic ambience working out scientific-practical recommendation on improving from a health point of view nozogeographic situations in the Republic of Uzbekistan.
Methods of research: relatively-geographical, cartographic, demographic analysis, statistical, system-structured, extrapolation, sociological (questioning) and others.
The results obtained and their novelty: are concluded, first of all, in study disease populations, factors of the condition and territorial structures speciality with point of view economic and social geography. In dissertation is studied also theoretical and practical questions of medical geography, analysis and estimation nozogeographic situations different territory bring physician-geographical regionalization Uzbekistan.
Practical value: the main scientific-practical conclusions and recommendations of dissertation can be used in reform systems public health as well as in improvement territorial organizations of sphere of the medical servicing the population.
Degree of embed and economic effectivity: the mail recommendations and suggestions, resulting from research, have been used at the State Committee Departments of protection of Nature, Ministry of Health of the Republic of Uzbekistan, Institute of health and medical statistics under Ministry of Health of the Republic of Uzbekistan and at the educational process on the faculty of geography of NUUz.
Field of application: State Committee Departments of protection of Nature, Ministry of Health of the Republic of Uzbekistan, hokimiyats of regions, higher educational institutions and others.

Subjects of the inquiry: beer fraction is a waste of the beer production in the ALR “Shymkcntpivo”, xylans of beer fraction, catalyzators having stability from acids.
Aim of the inquiry: development of methods of Xylite obtaining from beer fraction by methods of simultaneous hydrolysis and hydrogenization of beer fraction’s polysaccarides in the presence of promoted catalyzators on the basis of copper, cobalt and nickel.
Methods of inquiry: physical-chemical, IR-spcctroscopy, gas-liquid chromatography, electron microscopy.
The results achieved and their novelty: novelty of thesis is included in the development of scientifically-technical basis of efficient technology of Xylite obtaining from beer fraction by method of joint hydrolysis of polysaccarides and hydrogenization of formed Xylose. Chemical composition of Xylans of beer fraction have been established and it is proved that beer fraction can be perspective pentose-containing raw material for hydrolysis; the possibility of implementation of hydrolysis process of Xylans into autocatalitical “acidless” regime have been established the scientifically-technical basis of hydrolysis and hydrogenization of beer fractions’ polysaccharides in the devices of columned type of original construction have been developed; selection of efficient hydrogenization catalyzators that have stability from acids and admixtures of Xylose solutions have been implemented; the optimum conditions of autocatalytical hydrolysis process and hydrogenization of beer fraction’s polysaccharides have been determined by method of mathematical planning of the experiment.
Practical value: for the first time on the base of results of investigations the methods of synthesis and resource-and energy-saving technology of Xylite obtaining from beer fraction by way of simultaneous hydrolysis and hydrogenization have been developed which is approved in real experienced-industrial conditions. Realization in practice the results of given investigation decides the following important problems: the domestic production of Xylite with ability to competition on the principal new technology by way of development and inculcation of highly rated processes arc created; the waste of beer production -beer fraction arc rationally used that provides the improvement of the ecological situation in zone of beer production and provides the maximum profit at minimum of expenseses.
Degree of embed and economic effectivity: developed technology passed the experienced-industrial tests in research institute of chemical technology and industrial ecology (Shymkent), the obtained Xylite meets the demands of TX - 64-10-04-89 on the organoleptic and physical-chemical properties. At the averagt of production 2000 tone of crystalline xylite a year at the it’s sail on the minimum world price 10 000 dollars fors 1 tone the expected profit will be 4.359,4 dollars fors 1 tone of xylite.
Sphere of usage: hydrolytic industry, processiong of beer fractions’ wastes.

Subjects of the inquiry: beer fraction is a waste of the beer production in the ALR “Shymkentpivo”, xylans of beer fraction, catalyzators having stability from acids.
Aim of the inquiry: development of methods of Xylite obtaining from beer fraction by methods of simultaneous hydrolysis and hydrogenization of beer fraction’s polysaccarides in the presence of promoted catalyzators on the basis of copper, cobalt and nickel.
Methods of inquiry: physical-chemical, IR-spectroscopy, gas-liquid chromatography, electron microscopy.
The results achieved and their novelty: novelty of thesis is included in the development of scientifically-technical basis of efficient technology of Xylite obtaining from beer fraction by method of joint hydrolysis of polysaccarides and hydrogenization of formed Xylose. Chemical composition of Xylans of beer fraction have been established and it is proved that beer fraction can be perspective pentose-containing raw material for hydrolysis; the possibility of implementation of hydrolysis process of Xylans into autocatalitical “acidless” regime have been established the scientifically-technical basis of hydrolysis and hydrogenization of beer fractions’ polysaccharides in the devices of columned type of original construction have been developed; selection of efficient hydrogenization catalyzators that have stability from acids and admixtures of Xylose solutions have been implemented; the optimum conditions of autocatalytical hydrolysis process and hydrogenization of beer fraction’s polysaccharides have been determined by method of mathematical planning of the experiment.
Practical value: for the first time on the base of results of investigations the methods of synthesis and resource-and energy-saving technology of Xylite obtaining from beer fraction by way of simultaneous hydrolysis and hydrogenization have been developed which is approved in real experienced-industrial conditions. Realization in practice the results of given investigation decides the following important problems: the domestic production of Xylite with ability to competition on the principal new technology by way of development and inculcation of highly rated processes are created; the waste of beer production -beer fraction are rationally used that provides the improvement of the ecological situation in zone of beer production and provides the maximum profit at minimum of expenseses.
Degree of embed and economic effectivity: developed technology passed the experienced-industrial tests in research institute of chemical technology and industrial ecology (Shymkent), the obtained Xylite meets the demands of TX - 64-10-04-89 on the organoleptic and physical-chemical properties. At the averagt of production 2000 tone of crystalline xylite a year at the it’s sail on the minimum world price 10 000 dollars fors 1 tone the expected profit will be 4.359,4 dollars fors 1 tone of xylite.
Sphere of usage: hydrolytic industry, processiong of beer fractions’ wastes.

Subjects of research: phosphorites of Central Kizylkum: ordinary phosphorite flour, low phosphorites, washed dried concoction, thermo concentrate, sulphur.
Purpose of work: the development to technologies and chemical base of the reception, complex phosphoric-sulfuric and nitrogen-phosphoric-sulfuric of the fertilizers, possessing insecticides by activity on base of the conversion phosphorites of Central Kizylkum sulphur, and under lowered rate by sulfuric and nitric acids.
Methods of research: chemical and X-ray graphical analysis.
The results achieved and their novelty: for the first time explored process to activations low phosphorites of Central Kizylkum presence of the sulphur, as well as is revealed role, rates of the sulphur and influence condition on transition not acquired forms of phosphorus in acquired. Designed technology of the reception phosphoric-sulfuric and nitrogen-phosphoric-sulfuric of the fertilizers by by decompositions phosphorites presence of the sulphur and lowered by rate by chamois and nitric acids, as well as explored physic-chemical and goods characteristic of the got products.
Practical value: on base result studies are for the first time received scientific given about creation intensive technological scheme of the reception complex phosphoric-sulfuric and nitrogen-phosphoric-sulfuric of the fertilizers possessing insecticides by activity by means of activation low phosphorites with sulphur, lowered rates by sulfuric and nitric acids.
Degree of embed and economic affectivity: agricultural chemistry test on cotton plant have shown efficiency phosphoric-sulfuric and nitrogen-phosphoric-sulfuric of the fertilizers before superphosphat prime cost 1 ton phosphoric-sulfuric of the fertilizers forms 20102,77 sum, prime cost 1 ton nitrogen-phosphoric-sulfuric of the fertilizers forms 153057,64 sum.
Sphere of usage: plants of State joint-stock company “O'zkimyosanoat”, the agriculture.

Topicality and relevance of the theme of the dissertation. Nowadays, in the countries of the world with developed chemical and oil-chemical industry loss as a result of corrosions metal forms is distributed 20 percentage of annual production metal. Under large planning the expansion their production and modernizations production organization, appears the problem of the increase lifetime polymeric and metallic product1.
For independence years of our Republic toward development of production of different new products in chemical industry broadly covered actions on the protection of metal from corrosion in agricultures, home services and production spheres, in this direction, as follows, production qualitative inhibitors, which serves in determined degree to increase lifetime polymeric and metallic products have been implemented. It is possible to note the applicable and designed inhibitors at the process of the corrosion, as well as antioxidants for the protection of polymeric products.
These days, in the world the pyridinic, low-molecular and high-molecular amines and oxyamincs, fatty syntetic acids, high-molecular alcohols, the basis of the quinoline, imidazolines, derived thiourea, urotropin, phosphorus-containing compounds, as well as by-products production of syntetic rubber, coke-chemical and petrochemical products arc used as main raw materials for the production of inhibitors. For this purpose, in our country systematic scientific studies arc making on the creation of new types of inhibitor and antioxidants. In connection with increasing need to applicable inhibitor, it appears practicability of the creation of universal inhibitors based on advanced technology. During the solution of this task there is a need of development and obtaining inhibitors using local raw material resources as a source of raw materials in the synthesis of oligomer inhibitors having set of valuable and useful characteristic.
This dissertation research in determined degree serves for performing the tasks, provided in resolution of the President of the Republic Uzbekistan number 1442 on December 15, 2010 "About priority of the development of industry of the Republic of Uzbekistan" and number 1072 on March 12, 2009 "About the program of the measures on realization the major project on the modernization, technical and technological re-equipment of production", as well as in other normative legal documents accepted in this sphere.
The aim of the research is to develop technologies of obtaining nitrogen, phosphorus and sulphur-containing multifunctional oligomer antioxidants for polymeric material and inhibitor to corrosions for protection metal from corrosion.
The scientific novelty of the research is as follows:
the structure and physical and chemical properties of the synthesized organic chemical additives based on the oligomer of derivatives of gossypol, a polymethylcncdi(thio)amidophosphatcs, oligomer on the basic of epichlorohydrin with di(thio)amidophosphatcs and oligomer of dimethyl terephthalate with polyeth-ylcncpolyamine is defined;
it is defined influences of the received inhibiting additives on the basic of N-, S-and the P-containing oligomer on physical and chemical and mechanical properties of polymeric materials and metal products;
arc defined efficiency of the antioxidants synthesized the oligomer on the basis of gossypol with antioxidants of a class of the spatial complicated Phenolums and qualitative and quantitative differences arc installed in the mechanism of their action;
the inhibiting properties of the corrosion inhibitors developed the oligomer for protection of metals against the hydrochloric, hydrosulphuric and acid corrosion arc defined;
the technology of taking new oligomer antioxidants and inhibitors of corrosion and forecasting of the inhibiting properties of antioxidants is developed for polymers and inhibitors of corrosion at inhibition of corrosion of metals.
CONCLUSION
1. Methods of obtaining antioxidants on the basis of gossypol with epichlorohydrin and allyl compounds under different conditions and proportions of reagents.
2. Polyfunctional oligomer antioxidants and corrosion inhibitors containing N-, S-, P- have been recommended and oligomer derivatives of gossypol, polymcthilcncdi (thio)amidophosphate, oligomers obtained on the bases of epichlorohydrin with di(thio)amidophosphatc and oligomers obtained on the bases of dimcthyltcrcph-thalate with polyethylene polyamine.
3. By using IR-spcctroscopy, mass-chromatography, differential thermal analysis, etc. the structure and the inhibitory activity of the synthesized oligomers in the reactions of PE degradation has been studied. It has been reveallcd that the synthesized oligomers based on gossypol prevent thermo-oxidative aging of polymers and they have been recommended in exchange of «Irganox 1010» used in the industry on its efficiency.
4. Oxygen uptake kinetics and stable source of LDPE has been investigated at various pressures of molecular oxygen. It has been established that in addition to inhibiting the reactions of the polymer oxidation process, oligomer antioxidant leads to the deceleration of the process of degradation of the polymer composition.
5. As a result of oligomer antioxidants SKI-3 and SKMS-30 ARKM-15 based on gossypol representing antioxidant activity in rubber mixtures they have been recommended for use in exchange of antioxidant «Irganox 1010».
6. It has been shown that the introduction of mixtures of oligomeric stabilizers in the SKI-3 and SKMS-30 ARKM-15 rubbers leads to a significant increase in the thermal stability, and observed a synergistic effect is higher for 2.4-3 times than the sum of the individual effects of stabilizers.
7. When the inhibitory evolution of oligomer corrosion inhibitors was studied on the bases of conducted experiments, having exposed that their anticorrosion efficiency is 98-99%, the use of IC-4 and IC-5 inhibitors in the saline medium and IC-3 inhibitors in the acid medium has been recommended.
8. Process technology of oligomer antioxidants and corrosion inhibitors has been recommended.

The aim of the research work
is development of methods of synthesis of new polyfunctional nitrogencontaining compounds - derivatives of morpholine, finding areas.
The object of the research work morpholine, epichlorohydrin, urea, acrylic and methacrylic acid.
Scientific noveltyof the researchwork
consists in the following:
it has been developed the technological process of obtaining new mono- and deexchanged derivatives of morpholine;
there have been suggested the method of obtaining unsaturated heterocyclic compounds on the bases of morpholine with akryl and methaakryl acids.
chlorohydrin has been synthsised on the bases of morpholine and epichlorohydrin and it has been created obtaining technology of унинг асосида petroltriazol, akryl methaakryl acids with morpholine new derivatives;
it has been investigated the spostaneous polymerization of epichlorohydrin with morpholine. Kinetic parameters of the process:the order of reaction on the initial reagents,activation energy of polymerization reaction.
spostaneous interaction of morpholine with epichlorohydrin has been investigated through quantum-chemical method and its molecular and energy diagrams have been recommended.
it has been created the technology of obtaining polyfunctional nitrogen containing compounds in the wide scale possessing morpholine ring with diffirent fragments by structure.
Implementationof the research results. According to the research results of the spontaneous polymerization of morpholine with epichlorohydrin:
developed by standard organizations ("based on Oligomer of epichlorohydrin ", Moree". Specifications (notice of the Ministry of health 14825224-04:2016 25 November 2016).
Processing leather goods with a solution of the oligomer on the basis of morpholine with epichlorohydrin allow you to get the leather semi-products with improved physical and mechanical, including hygiene and antibacterial properties.
The structure and volume of the thesis. The dissertation structure consists of the introduction, five chapters, the conclusion, the list of the used literature and appendixes. The dissertation volume consists of 120 pages.

Subject of the inquiry: rock phosphated meal, the washing up concentrate, thermoconcentrate, mineralizated mass, dusty fraction of the Central Kyzilkum phosphorites, single phosphated fertilizers.
Aim of the inquiry: development of the technology of reception single phosphated fertilizers form above - mentioned viewes of the phosphated raw of Central Kyzilkum.
Method of inquiry: chemical and physico-chemical methods.
The results achieved and their novelty: for the first time the single high -concentrated phosphorated fertilizers with large content of assimilated and water -soluble forms P2O5 is produced from the poor high - carbonizated phosphated raw by the method of its phosphate - acidic activation and by acidic - thermal processing.
Practical value: the agriculture has received extremely needed the single -phosphated fertilizers for applying under autumn ploughing. The results of this work permit to involve into production of the phosphated fertilizers such the large - tonnaged waste of Kizilkum phosphorited combinate as mineralizated mass and dusty fraction.
Degree of embed and economic effectivity: the laboratory findings have test - operates on the large model plant. During 2010y have planning the industrial test at Almalyk Open Society “Ammophos - Maksam”. The carried out agrochemical testings showed high efficiency of the new fertilizers. The agricultural demand in single phosphated fertilizers for applying them under autumn ploughing only on cotton and cereal crops has constitutes 272 - 292 thousand tons P2O5 by year. Now only simple ammoniated superphosphate producing by Kokand plant in amount 22,9 thousand tons P2O5 by year, maybe used as single phosphated fertilizer under autumn polughing.
Sphere of usage: plants of State joint - stock company “Uzkimyosanoat”, agriculture.

Subjects of research: a fibre Nitron waste, highly hydrolyzed poly electrolyte, glycerine, gossypol pitches, the salted sand, flocculant RS-2-3, structure forming agent MS-1.
The work purpose: Development of technology of reception of new kinds of highly hydrolyzed poly electrolytes on the basis of a fibre Nitron waste, modified by three-nuclear alcohol - glycerine and an oil fat industry waste the gossypol pitch, studying of their colloid-chemical properties and research of possibilities of areas of practical application.
Research methods: colloid-chemical, physical and chemical, IR-spectroscopy, microscopic and other methods of the analysis.
The results obtained and their novelty: for the first time the new technology of reception of VGPA on the basis of OPVN with high degree of hydrolysis in severe constraints and also its modified derivatives is developed: glycerine - a reagent of PS-2-3 condensation and gossypol pitch - thermal salt-resisting modified structure forming agent MS-1; it is established, that the polymers obtained do possess flocculating and structure forming properties and can be applied as regulators of colloid-chemical properties of industrial disperse systems.
The practical importance: the way of a condensation of concentrates of precious metals using structure forming structure forming flocculant PS-2-3 and a method of chemical fastening of the salted sand using structure forming agent MS-1 is developed.
Degree of embed and economic effectivity: Reagent PS-2-3 has passed trial and industrial tests in quality of flocculant for a condensation of foamy floating concentrates containing precious metals, on Angrensky GEF of Open Society «Almalyk GMK» and is introduced in manufacture with economic benefit of 300 million soums a year. Complex use of MS-1 together with wood sawdust has provided prevention of erosion of sand and improvement of ecological conditions at the drained bottom of Aral sea. Fastening of the salted sand with complex additive MS-1 with the wood sawdust there has passed skilled-field tests with positive results at coast of Kazahdarya of drained bottom of Aral sea and is recommended for introduction.
Field of application: the condensation of concentrates of precious metals at mountain-metallurgical industry as well as fastening of the salted sands at the drained bottom of Aral sea and its region.

Subjects of research: expanders gas, calciumcontcnts slimes, nitrate ammonia, urea, carboammonium salts, liquid fertilizers, bottom rest of monocthanolamine, solution of copperammonium cleaning, phosphate of carboammonium.
Purpose of work: physicochemical justification and development of technology liquid carboammonium and nitrogcn-calsium fertilizers on base of the secondary ores of nitrogenfertilizer manufactures with establishment optimal technological parameters and research ways stabilization of carboammonium salts.
Methods of research: chemical, physicochemical, visual-polythcrmal, X-ray.
The results obtained and their novelty: established raw effect technological parameters to process obtaining liquid carboammonium and nitrogcn-calcium fertilizers, their contents and properties, detecting optimal technological parameters. Development their technology with using secondary ores of nitrogenfertilizer manufactures. Established conditions stabilization carboammonium salts.
Practical value: results of executable research become scientific base of for creating technology of liquid carboammonium and nitrogen-calcium fertilizers on base of the secondary ores - expanders gas, calciumcontents slimes, and also fertilizers with additives urea and ammonium saltpeter, bottom rest of monoethanolamine, solution of copperammonium cleaning, phosphate of carboammonium. Development ways stabilization carboammonium salts and select dispersants. .
Degree of embed and economic effectively: proposed technology has been tested on «farg’onaazot» model set, experimental batches of liquid carboammonium and nitrogcn-calcium fertilizers were produced. Development technical conditions, initial data to projection, technological regulation, recommendation to use. The economic effect of production of 1 ton of 100% N in dependence from grade of fertilizer, comparison with ammonium saltpeter, for 61.13-187.98 thousand sum, and rise crops of cotton-raw to 4-15%
Field of application: chemical industry, agriculture.

The aim of the research work is improvement of technology of processing low-grade sylvinites of Tyubcgatan deposit to potassium chloride and working out of technology of processing halite waste of production to sodium chloride.
The scientific novelty of dissertational research consists in the following:
new data about structure and properties of sylvinitc ores of the Tyubcgatan deposit arc obtained and law of influence of fractional structure of orc and mineral contents of i.r. of sylvinite to processes hydromcchanical deslurrying is established;
revealed reasons of low efficiency of processes hydromcchanical dcslurrying of sylvinite ores of the Tyubcgatan deposit and working out technical decisions of increase of their efficiency;
processes of deslurrying and floatations of reception floatation potassium chloride from low-grade sylvinitc ores of the Tyubcgatan deposit arc improved and processes of filtration of concentrate of potassium chloride and halite waste arc intensified;
optimum technological parametres of processes is increase of an exit of sodium chloride and processing halite waste by leaching by the sated solutions of sodium chloride to technical sodium chloride and sodium chloride of food cleanliness arc established, conditions of flotation low-grade sylvinites arc revealed.

Plant saffron in July-August. Light, sandy soil is the best soil for growing saffron. Before planting saffron, the land is thoroughly plowed and fertilized. The saffron plant is planted at a depth of 10-12 cm. It is recommended to plant this plant in rows. The distance between rows is 15-20 cm, and the distance between plants is 10-15 cm. After the saffron plant is planted, watering several times will give good results. They should be cleaned of weeds and soften the ground between the rows. In this way, many saffron plants are grown and prepared [1, 2].

Subjects of research: subjects of research are the medicinal plants: radix Althaeae, flores Chamomillae, flores Achilleae millefolium, herba equiseti, folia Juglantis rediae, folia Salviae, herba Taraxaci, aethanol and purified water.
Purpose of work: development of composition and technology of “Tonzilat” elixir. With expectorant, anti inflamatori, antiseptic action on the base of local raw materials. Conducting of its quality control, standardization, study of its stability and bioavailability.
Methods of research: spirituose extract was obtained by means of maceration-circulation method from medicinal plants; spirit consentration was determined by means Of method, density-by means of picnometer, pl l-by means of potentiometric method, refractometric parameter-by means of Abbe refractometer dry residue of elixir in accordance with XI edition of SPh USSR. Bioavailability of preparation was studied in “vivo” experiments. Identity and assay of elixir active substances was determined with CMS (Chromatomassspectrometry) THC, SPh methods; storage term of elixir was established with “native” method (in ordinary condition).
The results obtained and their novelty: Optimal composition and rational technology of “Tonzilat” elixir were developed on the base of conducted researches Bioavailability of “Tonzilat” elixir suggested was determined in “in vivo” experiments. Storage condititions and terms of “Tonzilat” elixir were established.
Practical value: Projects of laboratory regalement and TPP (TPA) for “Tonzilat” elixir were developed on the base of results of researches conducted
Degree of embed and economic efficiency: TPP (TPA) developed for “Tonzilat” medicinal elixir was introduced into projects of laboratory regalement. Technology of “Tonzilat” elixir successfully probed in LLC “Galenika”which gave an agreement for introduction of this preparation into industrial manufacture on its base.
Field of application: pharmaceutical industry, medicine.