| Nashriyot | Тошкент кимё-технология институти |
|---|---|
| Shahar | Toshkent |
| ISSN | 1992-9498 |
| e-ISSN | 2181-1121 |
| Tashkil etilgan | 2003 |
| Nashr tillari | Ingliz, O‘zbek |
| Nashr davriyligi | Yiliga 4 marta |
| Maqolalar soni | 427 |
| OAK holati | Ro‘yxatda |
The purpose of the study is to determine the effect of changes in the chemical composition of the rock at the Dzherdanak deposit on its phase composition and thermal properties. Samples from different points of the…
The aim of the research is to study the effect of the residual content of vegetable oil hydrogenation catalysts on the quality indicators of the resulting fat masses and to develop recommendations for improving the…
The article studies the influence of solid-phase and melt synthesis methods on the structure and electrochemical properties of the Na3Fe2(PO4)3 polycrystals. If the solid-phase synthesis of the Na3Fe2(PO4)3 polycrystals…
The nature and structure of the coloring substances of vegetable oils differ from each other, due to the manifestation of a certain degree of polarization, which allows the use of polar adsorbents with high selectivity…
The purpose of the study was to obtain ground enamel based on local raw materials and to study the effect of boron oxide. The selection of local raw materials for producing ground enamel showed that the resulting glass…
In order to obtain the full content of high-temperature superconducting phases using the “Super Fast Alloys Quenching” technology in the Large Solar Furnace (Parkent), precursors of bismuth cuprates of the series…
The purpose of this work is to study the influence of lipolytic enzymes on the fermentation activity and fractional composition of alcohol by the yeast Saccharamyces cerevisea during alcoholic fermentation. Lipolytic…
The aim of the work is to study the patterns of formation of hydroxylammonium oligomers based on hexahydrosymtriazine with epichlorohydrin. The paper studies the interaction patterns of the alkanolamine…
The Methane Hydrate is expected as an energy source and is being as a medium distance transport means of natural gas alternative of LNG (Liquefied Natural Gas). During the natural gas transportation, fire accidents are…
The results of research on the production of semi-fritted cerium-containing glazes used for ceramic tiles are presented. A multicomponent raw material mixture based on dolomite, cerium dioxide CeO2, aluminosilicate…
The aim of the work is to study the crystallization capacity of glasses synthesized in the basalt-quartz-soda system. The crystallization capacity of glasses was studied by the method of mass crystallization in the…
The classification of textile fabrics according to the TIF TN code is an important task of foreign economic activity. The purpose of the study is to justify additional quantitative analyzes on the chemical tracking of…
The purpose of the study is to create a technology for the rational production of the substance POP from the extract of buds and unripe fruits of the plant Capparis spinosa L. A low-toxic (LD50 7600 - 10800 mg/kg)…
The purpose of this paper is to investigate the process of aminolysis of secondary polyethylene terephthalate with monoethanolamine at low ratio. The effect of the amount of monoethanolamine on the physical and chemical…
The purpose of the research is to study the adsorption properties and mineralogical structure of alkaline earth bentonites from the Navbakhor deposit, as well as to develop technological regimes for their acid…
In this work the vinylation reactions of aromatic carboxylic acids with vinyl acetate, which contain various substituents, in the presence of 2-chloro-4,6-dimethoxy-1,3,5-triazine were studied for the first time. The…
The purpose of this research work is for the first time the synthesis of the corresponding acetylene alcohols based on the alkynylation reaction of isolated benzaldehyde and its R-substituted derivatives in the BuLi/TGF…
Coordination competing donor centers, electronic and geometric structures of the 4-amino-2-mercaptobenzimidazole ligand molecule were studied using quantum chemical calculation by the DFT / 6-31G method (d, p). It was…
The aim of the study was to develop microwave synthesis of luminescent yttrium oxide powders doped with ytterbium and erbium ions (Y2O3:Yb3+, Er3+) in the process of homogeneous precipitation from a reaction mixture of…
The aim of the study is to determine the strength of the developed glass ionomer cements. As a powder of glass ionomer cements, glasses obtained in the SiO2-Al2O3-CaO-ZnO-P2O5-CaF2 system were used. The synthesized…
The aim of this work is to study the influence of the granulometric composition of dolomite and limestone of 0.1–1.0 mm, 1.0–1.6 mm, 1.6–2.5 mm fractions on the rate of glass formation processes in the synthesis of…
The purpose of the study is to develop a new catalytic system for the synthesis of internal acetylene alcohols from the Sonogastric coupling reaction of terminal acetylene alcohols and benzolchloride. For the first time…
The purpose of this study is to obtain an extract of Astragalus turkestanus with a high content of biologically active substances and the lowest content of associated substances. The factors influencing the process of…
The aim of the work is to improve the process of coarse grinding of clay raw materials in the manufacture of ceramic products. To achieve this goal, a comparison was made of existing machines - disintegrator rollers…
In this article, samples of soils contaminated with oil and oil sludge from the Seydi and Turkmenbashi oil refineries were studied. In order to identify the native microflora, as well as hydrocarbon-oxidizing…
In order to establish optimal drying modes for an aqueous extract from the aboveground part of Scutellaria adenostegia, the following parameters were studied: solution concentration; solution feed rate; temperature of…
The purpose of the work is acceleration of the process of nitrate decomposition of local dolomite raw materials and study its processing into MgOH, MgO, liquid and granular magnesium fertilizers. We studied the effect…
The main goal is to recover spent alkanolamine (methyldiethanolamine) used in natural gas purification. The negative changes resulting from the destruction of alkanolamine, which affect its physicochemical properties…
The aim of the present research is to develop compounds and technologies for applying the luminous vitrocrystalline compounds to smooth and ribbed glass substrates in LED lamp structure with a remote photoconverter that…
The purpose of the study is extraction of the indene from pyrolysis oil obtained from the pyrolysis of hydrocarbons at the Ustyurt gas processing plant. Indene is isolated by rectification from the composition of…
The purposes of the study are the synthesis of granular aluminum oxide and magnesium-aluminum spinel using various residues formed during thermochemical regeneration of adsorbents deactivated by chloride compounds, the…
Multisorption of heavy metals from aqueous solutions is very important in hydrometallurgy, industrial waste disposal, and water purification. The aim of this study is Monte Carlo simulation of the adsorption process of…
The aim of the study is to develop a convenient method for the synthesis of O-chloroacetylthymol and to propose the mechanism of the O-chloroacetylation reaction. Thin-layer chromatography of chloroacetylation and…
The aim of this work is to study the radical copolymerization of acrylonitrile with 1-chloro-3-piperidin-2-propylacrylate and to study the structure and properties of the synthesized copolymers. Ammonium persulfate was…
The purpose of this work is development of glass compositions for light-guiding core and reflective coat of a rigid optical fiber, coordinated with each other in terms of thermal expansion and technological…
The aim of this work is to obtain composite materials belonging to the class of heat-insulating structural concretes from waste non-metallic raw materials of volcanic origin by the method of microwave synthesis. A…
Paper presents selected properties of a kind of alumina toughened zirconia (ATZ) composites manufactured by the method which utilize reactive sintering process. Products made by means of this process show many…
The aim of the work was to study the resistance of Bi/Pb superconducting ceramics produced by solar energy, of the firing temperature and time. Based on the analysis of superconducting materials synthesis known…
The aim of the study is the synthesis of heterocyclic derivatives of alkaloids. A convenient method has been developed for obtaining natural alkaloid derivatives of anabazine and cytisine by the acylation reaction of…
The aim of this work is to obtain new materials for electrocatalysis based on nanostructured copper and zirconium alloys. New nano phase-separated material Cu#ZrO2 deducted from conventional Cu51Zr14 alloy precursor was…
The aim of the research is to study the asphalt-resin-paraffin deposits of the Western Palvantash field and their solubility in composite solvents based on hexane-containing concentrates of non-ionic surfactants and…
The aim of the study is possibility of processing the Khandiza deposit’s zinc concentrate into zinc chloride. It has been shown that the extraction of zinc from the concentrate must be carried out in an autoclave, after…
The article considers one of the research directions of the specialty "Chemistry of goods", namely the study and establishing the conformity of the quality of goods to the technical conditions of production and the…
In this paper the effect of modifying components containing Al2O3, B2O3, SiO2 and CaO introduced in various combinations on high and low-temperature viscosity values of basalt glass has been studied. It is shown that…
The purpose of the research is to develop a method of synthesizing new acetylene diols, to determine their structure, physico-chemical properties and to create optimal conditions by studying the effect of various…
The purpose of the work is to determine the effectiveness of the new solar dryer. The possibility of using a new solar dryer is shown on the example of drying herbs such as basil and vegetables - potatoes. It has been…
The purpose of the study is to identify the reaction conditions for the complex formation of chitosan and the Bombyx mori protein at pH and to determine the structure and properties of the obtained samples.The…
The information is presented on the results of the implementation of technology for wet enrichment of quartz sand at JSC "Quartz". As a result of the technology implementation of for the local quartz sands enrichment…
An increase in the amount of carbon dioxide in the atmosphere is one of the main factors in the greenhouse effect. At present, the development of methods for obtaining solid sorbents for carbon dioxide sorption, along…
The aim of this work is to study the reaction of esterification of liquid olefins with acetic acid in the presence of catalysts and to study the structure and properties of the synthesized saturated esters. 1-hexene…