Некоторые особенности дистанционного взаимодействия катионита КУ 2-8 с анионитом АВ-17 // Международная научно-техническая конференция «Современные технологии производства и переработки полимерных материалов» сборник тезисов. За это время их отобрали для последующего определения концентрации ионов лантана. Скорость связывания полимерных цепей (по отношению к ионам лантана) исходных ионитов и интерполимерной системы КУ2-8:АВ-17-8 с течением времени.
Characteristics of the extraction of yttrium and lanthanum with an intergel system based on hydrogels of polyacrylic acid and poly-4-vinylpyridine // «Chemistry» series. Thermal cracking of fuel oil in shale mixture // The Bulletin of the National Academy of Sciences of the Republic of Kazakhstan. Transformations of oil tar in the presence of Kenderlyk shale // Statements of the reports IV Internal.
Doctor of Chemical Sciences, Professor at the Department of Chemistry, Institute of Natural Sciences, Kazakh National Women's Teacher Training University, Almaty, Republic of Kazakhstan; The dependence of the yttrium content in the aqueous medium after sorption by the interpolymer system was: The heteroatoms in the molecule of the resulting pitch influence the formation of the mesophase itself.
Некоторые особенности дистанционного взаимодействия катионита КУ 2-8 с анионитом АВ-17 // Международная научно-техническая конференция «Современные технологии производства и переработки полимерных материалов» сборник тезисов. Некоторые особенности взаимодействия ионов скандия и иттрия с активированным гидрогелем // Карагандинский государственный университет им. Особенности экстракции иттрия и лантана интергелевой системой на основе гидрогеля полиакриловой кислоты и поли-4-винилпиридина // Вестник Караганды.
The obtained results show that significant changes in the electrochemical and conformational values of the initial.
Study of microbiological and agrochemical characteristics of a composition based on mono-, dicalcium phosphate
Study of the microbiological characteristics of fertilizer compositions on model soil samples, determination of the accumulation of nitrogen and
In model soil samples, the effect of mixtures of ammonium nitrate (AN) and monocalcium phosphate (MPP), AC and dicalcium phosphate (DCP), compositions of MCP with a phytozinc compound (PZC) and DCP with PZC on the number of soil samples Microorganisms that provide plant nutrition and nitrogen degradation, were studied in soil, as well as the accumulation of nitrogen phosphorus pentoxide in soil. Table 1 shows the results obtained from changes in the content of easily hydrolyzable nitrogen and the mobile form of phosphorus pentoxide in model soil samples. The fact of a decrease in the content of easily hydrolyzable nitrogen and phosphorus pentoxide (Table 2) in standard fertilizers and an increase in the use of a composition based on mono-, dicalcium phosphates with phytozinc microorganisms, an increase in the number of oligratrophs and denitrifiers that decompose humus and nitrate nitrogen from the soil, and when using compassion based on mono-, dicalcium phosphates with a phytocompound of zinc (options 3 and 4), an increase in the number of reducing and phosphate Mobilizing micro-organisms occurs, a decrease in the number of oligotrophs and nitrate soil nitrogen.
173 Analysis of soil and plants for nutrient content and number of soil microorganisms in the middle of the growing season according to the options (tables 5 and 6) is in good agreement with the data in table 5. In the model soil samples, the Effect positive of a compound based on monophosphates, dicalcium with a phytocompound of zinc in an increase in the number of soil microorganisms that affect the nitrogen and phosphorus nutrition of a plant and a decrease in the number of oligotrophs and denitrifiers that decompose humus and nitrogen nitric. of land is shown. The data obtained agree well with phenological observations, nutrient content in the middle of the growing season and the results of microbiological studies.
Mutual activation of polymethacrylic acid hydrogels and poly-2-methyl-5-vinylpyridine in the intergel system // Chemical Journal of Kazakhstan. Catalysts based on vanadium pentoxide modified with Ti, Sn, Zr and W oxides were tested in the oxidative ammonolysis of 4-methylpyridine. The role of the main process parameters such as temperature, the ratio of the initial components in the conversion of the methyl group to the nitrile group and the optimal conditions for the oxidative ammonolysis of 4-methylpyridine were determined.
Lücke [7] presented an overview of the current state of the art in the field of vapor phase oxidation, ammoxidation of substituted methyl aromatic and heteroaromatic hydrocarbons using V-containing catalysts. Previous mixed vanadium-titanium-tin catalysts effective in the oxidative ammonolysis of 4-methylpyridine had been developed at the Bekturov Institute of Chemical Sciences [8]. In this study [10], the W-V-O catalyst obtained by hydrothermal synthesis was tested in the oxidative ammonolysis of another isomer, 3-methylpyridine. Vanadium zirconium oxide catalysts showed high selectivity in the process of oxidative ammonolysis of 3-picoline [12, 13].
In this regard, vanadium-titanium-zirconium catalysts were of interest, which showed high activity and selectivity in the oxidative ammonolysis of 4-methylpyridine [14]. 199 The purpose of this work was to study the catalytic activity of new modified oxide V-Ti-Zr-O-catalysts, additionally containing tin dioxide and tungsten oxide, in the oxidative ammonolysis of 4-methylpyridine. Prototype catalysts were tested in a laboratory unit in the oxidative ammonolysis reaction of 4-methylpyridine with a wide variation of process parameters.
