Химический журнал Казахстана最新文献

DETERMINATION OF TRITIUM IN VEGETATION IN THE OBSERVATION AREA OF REACTOR WWR-K IN KAZAKHSTAN 哈萨克斯坦wwrk反应堆观测区植被中氚的测定

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.28

M.V. Krasnopyorova, M.A. Severinenko, P.V. Kharkin, O.S. Milts, V.A. Makarova, Zh.K. Sanalbay

{"title":"DETERMINATION OF TRITIUM IN VEGETATION IN THE OBSERVATION AREA OF REACTOR WWR-K IN KAZAKHSTAN","authors":"M.V. Krasnopyorova, M.A. Severinenko, P.V. Kharkin, O.S. Milts, V.A. Makarova, Zh.K. Sanalbay","doi":"10.51580/2023-3.2710-1185.28","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.28","url":null,"abstract":"In assessing the impact of radiation-hazardous facilities on the environment and humans, considerable attention is currently paid to the problem of tritium and its compounds intake. It is important to note that to date there are no effective industrial technologies for efficient capture of this radionuclide. As a result, all the tritium produced during the operation of nuclear power plants with emissions and discharges is released into the environment. This leads to increased tritium concentrations in the environment, including vegetation. The aim of this work is to develop and adapt a set of methods for sample preparation and determination of tritium in vegetation samples. Methodology: A special Carbolite Gero MTT tube furnace was used to improve sample preparation methods and maximise the recovery of organically bound tritium from vegetation. Tritium was measured by liquid scintillation beta spectrometry. Results and Discussion: This research paper presents the results of the study and implementation of the method of tritium determination in vegetation near the VVR-K reactor located in the city of Almaty, Kazakhstan. Conclusions: The developed method of tritium determination in vegetation can be applied for radiation monitoring of tritium content and its compounds in the vicinity of nuclear industrial facilities. The presented data emphasise the need for systematic studies of tritium accumulation in environmental components. It is expected that in the future, using the implemented method, the studied area will be studied in detail, taking into account an extended set of factors: meteorological conditions, reactor operation mode and others. Thus, for a more complete and reliable assessment of tritium radionuclide activity determination, it is necessary to carry out works to determine the type of vegetation accumulating this isotope.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PROSPECTS FOR THE EXTRACTION OF CHROMIUM FROM SLAG FERROCHROME PRODUCTION BY ACID METHOD 酸法萃取铬铁渣中铬的研究前景

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.26

К.А. Kadirbekov, R.M. Chernyakova, R.A. Kaiynbayeva, G.Sh. Sultanbayeva, U.Zh. Jussipbekov, N.N. Kozhabekova

{"title":"PROSPECTS FOR THE EXTRACTION OF CHROMIUM FROM SLAG FERROCHROME PRODUCTION BY ACID METHOD","authors":"К.А. Kadirbekov, R.M. Chernyakova, R.A. Kaiynbayeva, G.Sh. Sultanbayeva, U.Zh. Jussipbekov, N.N. Kozhabekova","doi":"10.51580/2023-3.2710-1185.26","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.26","url":null,"abstract":"In the Republic of Kazakhstan, there is a noticeable upward trend in the volume of industrial waste, including from the production of ferrochrome. The problems of man-made pollution of the natural environment are becoming more acute every year, and are beginning to take on a global dimension. Technogenic ferrochrome production waste contains chromium, which is highly toxic and carcinogenic, which poisons water, soil, negatively affects the activity of all living organisms. Slags contain a significant number of valuable components used in various industries, and above all, chromium, which is irrevocably lost during storage. The main task still remains the development of industrial waste disposal processes that reduce the anthropogenic load on the biosphere and ensure the rational use of natural resources. The purpose of the work is to justify the choice of the method of processing the slags of the ferrochrome production. Conclusions: The analysis of the modern scientific and patent literature on acid processing and utilization of chromium-containing slags from the production of refined and high-carbon ferrochrome has been conducted. It should be noted that the described methods of various methods of processing ferrochrome production slags, despite their availability, are characterized by a multi-stage nature and do not allow complete processing of ferrochrome production slags in Kazakhstan. Currently, there is an excess of sulfuric acid production in Kazakhstan, so it becomes advisable to use sulfuric acid as a reagent for leaching chromium from slag from the production of ferrochromium. It can be expected that in sulfuric acid under certain conditions, such as heating, a sufficiently high degree of extraction of chromium (III) will be achieved in slags from the production of high-carbon chromium and in refined ferrochem slags.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HYDROGENATION OF POLY-α-OLEFINIC COMPOUNDS OVER PALLADIUM AND PALLADIUM-NICKEL CATALYSTS 钯和钯镍催化剂上聚α-烯烃化合物的加氢反应

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.25

Toshtay Kainaubek

{"title":"HYDROGENATION OF POLY-α-OLEFINIC COMPOUNDS OVER PALLADIUM AND PALLADIUM-NICKEL CATALYSTS","authors":"Toshtay Kainaubek","doi":"10.51580/2023-3.2710-1185.25","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.25","url":null,"abstract":"Poly-α-olefinic compounds are a component of base oils obtained by catalytic polymerization of linear alpha-olefins with subsequent hydrogenation, used for aviation and ground technology, and occupy an important place in the industry. Products of oligomerization contain one double bond; which needs to be hydrogenated to make it resistant to various chemical transformations during the production of lubricating oils. Methodology. Hydrogenation was carried out in an autoclave, which allows maintaining a constant temperature and pressure of hydrogen with measurement of the volume of absorbed hydrogen, excluding external diffusion inhibition. Catalysts were characterized by the following methods: specific surface area by BET, and particle size by transmission electron microscopy. The product of the reaction was characterized by the following methods: density, bromine number, IR, kinematic viscosity, and freezing point. Results and discussion. For the hydrogenation of poly-α-olefinic compounds, 0.5–1.0% Pd catalysts applied to modified natural diatomite clay are proposed. It is shown that modification with additional nickel leads to a decrease in activity. Conclusion. It has been found that palladium catalysts carry out the process under milder conditions, exhibit higher activity compared to nickel catalysts, significantly reduce the process time, and provide a higher degree of hydrogenation. The activity of bimetallic catalysts is lower than that of palladium catalysts. The physicochemical characteristics of polyalphaolefin oils have been determined. It has been found that palladium catalysts carry out the process in milder conditions, show higher activity compared to nickel catalysts, significantly reduce the process time, and provide a higher degree of hydrogenation. The activity of bimetallic catalysts is lower than that of palladium catalysts.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COMPOSITE MATERIALS BASED ON ALICYCLIC COPOLYIMIDE AND ACRYLIC ACID COPOLYMER WITH ACRYLAMIDE 基于脂环共聚物和丙烯酸与丙烯酰胺共聚物的复合材料

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.24

M. B. Umerzakova, R.M. Iskakov, R.B. Sarieva, Zh.N. Kainarbayeva, A.A. Espenbetov

{"title":"COMPOSITE MATERIALS BASED ON ALICYCLIC COPOLYIMIDE AND ACRYLIC ACID COPOLYMER WITH ACRYLAMIDE","authors":"M. B. Umerzakova, R.M. Iskakov, R.B. Sarieva, Zh.N. Kainarbayeva, A.A. Espenbetov","doi":"10.51580/2023-3.2710-1185.24","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.24","url":null,"abstract":"Progress in polymer materials science is mainly associated with the development of new composite materials, created by the introduction of modifying additives into the matrix polymer which which improve polymer characteristics due to their properties. The purpose of this work is to obtain composite materials with improved thermal and mechanical properties from copolyimide based on dianhydrides of tricyclotetracarboxylic and diphenyloxydtetracarboxylic acids with diaminodiphenyl ether modified by a copolymer of acrylic acid with acrylamide. Results and discussion. Polymer compositions of copolyimides of arylalycyclic structure in combination with acrylic acid copolymer and acrylamide, as well as composite materials (film) based on them, were obtained. It was found that with an increase in the content of the added component from 0.35 to 2.0 wt%, uniformity is maintained in the polymer mixture. The infrared (IR) spectroscopy method shows that during formation of the above polymer mixtures the interaction of functional groups of the polymers under study with the formation of hydrogen bonds, which determine the homogeneity of the mixture. By methods of thermogravimetry and stretching of the sample with a constant deformation rate were used to determine, respectively, the thermal resistance and mechanical properties of the developed composite films. The increase of thermal resistance and strength of the film is explained by the formation of partial intermolecular cross-linking between the components of the mixture and the elasticity of the material – with the plasticizing effect of the additive. Conclusion. Polymer mixtures were obtained and composite films were molded on their basis.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

STUDY OF THE ANALGESIC ACTIVITY OF(S)-1-METHYL-3-(1-(5-PHENYL ISOXAZOLE-3-CARBONYL) PIPERIDINE-2-IL) PYRIDINE-1-IUM IODIDE (5)-1-甲基-3-(1-(5-苯基异恶唑-3-羰基)哌啶-2- il)吡啶-1-碘化铵的镇痛活性研究

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.30

G.K. Mukusheva, A.R. Zhasymbekova, M.R. Aliyeva, M. Zh. Kaiyrbayeva, A.S. Mazhitov

{"title":"STUDY OF THE ANALGESIC ACTIVITY OF(S)-1-METHYL-3-(1-(5-PHENYL ISOXAZOLE-3-CARBONYL) PIPERIDINE-2-IL) PYRIDINE-1-IUM IODIDE","authors":"G.K. Mukusheva, A.R. Zhasymbekova, M.R. Aliyeva, M. Zh. Kaiyrbayeva, A.S. Mazhitov","doi":"10.51580/2023-3.2710-1185.30","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.30","url":null,"abstract":"Recently, the attention of specialists to medicines of natural origin has been constantly growing. The interest in the use of such drugs obtained from natural raw materials is justified by high efficiency, a wide range of pharmacological activity, as well as the possibility of using them for a long time without complications and side effects. The share and volume of production of medicinal products is increasing all over the world, through synthetic transformations of substances isolated from wild and cultivated plants. Substances of plant origin are widely used as biologically active additives, agrochemical agents. Research in the field of modern chemistry of plant substances in the Republic and abroad is devoted to a comprehensive and comprehensive study of plant raw materials, including the extraction and designation of the structure and chemical properties of plant components, the study of their biological activity, the development of effective and environmentally safe methods for complex processing of plant raw materials. The attractiveness of alkaloid derivatives to compounds is due to the versatility of their reactivity, as well as the practical use of alkaloid derivatives as medicines. Modification of the molecules of natural compounds by introducing such a substituent is one of the promising directions in the search for new biologically active compounds. Analysis of the results of analgesic activity assessment experiments showed that(s)-1-methyl-3-(1-(5-phenylisoxazole-3-carbonyl) piperidine-22 Il) pyridine-2-Il) pyridine-1-IUM iodide has the ability to reduce the severity of specific nociceptive responses in rats during chemical irritation of the peritoneum. The analgesic activity of the test sample was analyzed on diclofenac sodium.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QUANTUM CHEMICAL STUDY OF HYDROGENATION OF SUNFLOWER OIL OVER NICKEL CATALYSTS 镍催化剂上葵花籽油加氢的量子化学研究

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.33

Zh.A. Sailau, N.Zh. Almas, K. P. Aimaganbetov, B. A. Kurbanova, K. Toshtay, A.A. Aldongarov

{"title":"QUANTUM CHEMICAL STUDY OF HYDROGENATION OF SUNFLOWER OIL OVER NICKEL CATALYSTS","authors":"Zh.A. Sailau, N.Zh. Almas, K. P. Aimaganbetov, B. A. Kurbanova, K. Toshtay, A.A. Aldongarov","doi":"10.51580/2023-3.2710-1185.33","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.33","url":null,"abstract":"Vegetable oil hydrogenation is vital in edible margarine production, preventing rapid deterioration caused by double bond oxidation. Hydrogenation preserves vegetable oils by countering double bond oxidation, ensuring product quality. During this process, geometric isomers, notably trans isomers, form, driven by thermodynamic stability. Nickel catalysts are crucial in the oil and ghee industry for efficient hydrogenation. Purpose. Our study investigates the hydrogenation of sunflower oil with nickel catalysts, aiming to uncover molecular dynamics and interactions shaping this process. We reveal essential insights into linoleic acid-nickel interactions, elucidating hydrogenation mechanisms and implications for glycerol production. Methodology. Quantum chemical calculations and HyperChem software were employed to study the linoleic acid-nickel interaction during hydrogenation. This study delves into the hydrogenation of sunflower oil using nickel catalysts, employing quantum chemical calculations and HyperChem software. Results. Our research elucidates robust linoleic acid-nickel interactions through optimized structures, molecular electrostatic maps, molecular orbitals, bond lengths, and energies. These findings enhance our understanding of hydrogenation mechanisms. Additionally, we found that nickel-metal interactions primarily drive glycerol production from biofuels, promising efficiency gains. Conclusion. Our study yields insights into vegetable oil hydrogenation with nickel catalysts, optimizing processes in the oil and ghee industry. Furthermore, it has implications for glycerol production from biofuels, offering potential advancements in this area.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SYNTHESIS OF A DOUBLE COMPOUND BASED ON DIMETHYLOL UREA AND PHYTOCOMPOUND OF MOLYBDENUM AND THE STUDY OF ITS INFLUENCE ON THE POPULATION OF SOME SOIL MICROORGANISMS AND ACCUMULATION OF NITROGEN 二甲基脲与钼植物化合物的合成及其对土壤微生物种群和氮素积累的影响

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.32

E.N. Ramazanova, S. Usmanov, N.N. Yeserkeeva, M. A. Zholmaganbetova, O.V. Myachina, R.U. Mahmudov, H.S. Usmanov

{"title":"SYNTHESIS OF A DOUBLE COMPOUND BASED ON DIMETHYLOL UREA AND PHYTOCOMPOUND OF MOLYBDENUM AND THE STUDY OF ITS INFLUENCE ON THE POPULATION OF SOME SOIL MICROORGANISMS AND ACCUMULATION OF NITROGEN","authors":"E.N. Ramazanova, S. Usmanov, N.N. Yeserkeeva, M. A. Zholmaganbetova, O.V. Myachina, R.U. Mahmudov, H.S. Usmanov","doi":"10.51580/2023-3.2710-1185.32","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.32","url":null,"abstract":"Drillers used for agricultural crops, in particular cotton seeds, cannot provide additional nitrogen feeding in the required volume during a shortage of nitrogen fertilizers. This article sets the task of creating a new active substance based on the phyto compound dimethylolure and molybdenum, which allows you to reduce cotton diseases in cotton cultivation, increase the accumulation of light hydrolyzed nitrogen in the soil and obtain a high cotton yield. The purpose. Study of chemical interactions in a three-component aqueous-salt system of dimethylolure-molybdenum phyto-compound-water by isothermal method. Objects. DMM, FSMo, double compound DMM is the active reactant of FSMo. Results.The isothermal method at a temperature of 25°C found that in the concentration range of solutions of 12.2-9.8% DMM and 2.8-5.4% FSMo, DMM crystallizes in the system, at a concentration range of 5.7-2.1% DMM and 12.3-15.5% FSMo, FSMo crystallizes, and in the concentration range of 8.2 -6.4% DMM and 6.2-9.3% FSMo, the compound DMM•FSMo is separated from the solution into this phase.Conclusion. The chemical interaction in the water-salt system dimethylol urea (DMM) - molybdenum phytocompound (FSMo) - water was studied by isothermal methods of chemical analysis. The region of crystallization of a new double compound, an active substance based on DMM and FSMo, was established at a molar ratio of 4DMM•FSMo. On model soil samples, it was determined that the active substance - the double compound 4DMM•FSMo against the background of ammonium nitrate, in comparison with ammonium nitrate, increases the number of nitrogen-fixing bacteria by 3.0 and 3.2 times.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DETERMINATION OF THE CHEMICAL COMPOSITION OF COUSINIA MINDSCHELKENSIS B. FEDTSCH. BY GAS CHROMATOGRAPHY-MASS SPECTROMETRY METHOD 白臭臭化学成分的测定。采用气相色谱-质谱联用方法

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.27

G.T. Sitpayeva, A.A. Kurmantayeva, A.H. Kenesbay

{"title":"DETERMINATION OF THE CHEMICAL COMPOSITION OF COUSINIA MINDSCHELKENSIS B. FEDTSCH. BY GAS CHROMATOGRAPHY-MASS SPECTROMETRY METHOD","authors":"G.T. Sitpayeva, A.A. Kurmantayeva, A.H. Kenesbay","doi":"10.51580/2023-3.2710-1185.27","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.27","url":null,"abstract":"Vegetation is important component and factor of the redistribution of chemical elements in the landscape. One or another type of vegetation determines the amount and nature of soil organic matter, often affects the degree of development of browning processes, affects the chemical composition of the air, is an environmental indicator. The study and isolation of physiologically active compounds from plant raw materials and the determination of the place of their demand is the most important urgent task. Cousinia mindschelkensis B. Fedtsch. It is a rare species from the Asteraceae. Methods. In the Research Center of Medicinal Plants of the Al-Farabi KazNU, analyses were carried out for the determination of organic compounds by gas chromatography with mass spectrometric detection and analyses of 70% of alcohol extracts of the aboveground and underground parts species by the method of high-performance liquid chromatography on a liquid chromatograph. Results. Some of the components identified by GC-MS are biologically active compounds. The GC-MS method revealed the presence of 55 phytochemical compounds in the aboveground and 38 in the underground part of plants that can contribute to the medicinal properties of this species. Conclusion. Compounds have some important biological potential for future drug development. Of the aboveground part of the plant includes bicyclo[2.2.1]heptan-2-one, 1.7.7-trimethyl-, (1S)- (9.50%), hexadecanoic acid (8.05%), cis-Vaccenic acid (7.66%), 9.12-Octadecadienoic acid (Z,Z)- (7.40%), hanphyllin (7.01%), 5.8-Dihydroxy-4a-methyl-4,4a,4b,5,6,7,8,8 a,9,10-decahydro-2(3H)-phenanthrenone (6.51%), dibutyl phthalate (5.64%), while the underground part of the plant has a spike of components such as octacosane (26.84%), β-amyrin (22.35%), β-sitosterol (12.63%), 9.12-Octadecadienoic acid (Z,Z)- (8.43%).9,12-Octadecadienoic acid (Z,Z)- it is present both in the aboveground (7.40%) and in the underground part of the plant (8.43%).","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FLOCCULATING AND BIOCIDAL PROPERTIES OF COPOLYMER OF N,N-DIMETHYL-N,N-DIALLYL AMMONIUM CHLORIDE WITH N,N-DIMETHYLAMINOPROPYL METHACRYLAMIDE n, n, n -二甲基- n, n -二烯丙基氯化铵与n, n -二甲氨基丙基甲基丙烯酰胺共聚物的絮凝和杀菌性能

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.23

B.Ye. Abdiyev, M.B. Zhursumbayeva, N.Zh. Seitkaliyeva, K.Zh. Abdiyev

{"title":"FLOCCULATING AND BIOCIDAL PROPERTIES OF COPOLYMER OF N,N-DIMETHYL-N,N-DIALLYL AMMONIUM CHLORIDE WITH N,N-DIMETHYLAMINOPROPYL METHACRYLAMIDE","authors":"B.Ye. Abdiyev, M.B. Zhursumbayeva, N.Zh. Seitkaliyeva, K.Zh. Abdiyev","doi":"10.51580/2023-3.2710-1185.23","DOIUrl":"https://doi.org/10.51580/2023-3.2710-1185.23","url":null,"abstract":"Nowadays, pollution of water reservoirs with harmful industrial waste is considered one of the urgent problems. Poly surfactants (flocculants) are usually used to clean industrial wastewater from harmful impurities. However, currently known flocculants do not meet the requirements for them. The main reason for this is the high cost of monomers or the complexity of flocculant synthesis methods. Microbiological corrosion (biocorrosion) of metal and reinforced concrete structures is still an unresolved issue. In this regard, synthesis of new effective flocculants with biocidal properties is considered one of the urgent problems. The purpose of this work is synthesis and studying of the flocculation and biocidal properties of the copolymer of N,N-dimethyl-N,N-diallylammonium chloride with N,N-dimethylaminopropyl methacrylamide (DMDAACh-DMAPMA). The methodology of the work is to synthesize a new effective poly-surfactant with flocculating and biocidal effect on the basis of industrial monomers available by the radical copolymerization method and to determine its properties by modern methods. Results and discussion. The effect of molar composition and the ionic strength of the medium on the flocculation and biocidal properties of the copolymer DMDAACh-DMAPMA was studied. It has been proven that copolymer DMDAACh-DMAPMA, synthesized from a mixture of monomers with molar composition 50:50 mol. %, shows the highest flocculation properties in relation to the dispersed particles of bentonite clay. The presence of salt (0.01 wt.% NaCl) in the media increases the flocculation properties of the copolymer. It was found that DMDAACh-DMAPMA copolymers have also biocidal properties and can be used as a biocidal compound to inhibit the growth of sulfate-reducing bacteria (SRB). The optimal concentration is 0.01÷0.05 mas. %.","PeriodicalId":494584,"journal":{"name":"Химический журнал Казахстана","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INFLUENCE OF CHEMICAL MODIFICATION ON THE COMPOSITION AND PROPERTIES OF ORGANOMINERAL COMPOSITE MATERIALS 化学改性对有机复合材料组成和性能的影响

Химический журнал Казахстана Pub Date : 2023-09-15 DOI: 10.51580/2023-3.2710-1185.31

U.Zh. Dzhusipbekov, G.O. Nurgalieva, Z.K. Bayakhmetova, Hamdi Temel

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