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INTERACTION OF SODIUM SELENITE WITH SODIUM HYDROXYMETHANESULFINATE AND THIOUREA DIOXIDE IN AQUEOUS SOLUTIONS 水溶液中亚硒酸钠与羟甲亚硫酸钠和二氧化硫脲的相互作用
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216411.6442
S. Makarov, P. A. Molodtsov, Ilia A. Dereven’kov, E. Naidenko
{"title":"INTERACTION OF SODIUM SELENITE WITH SODIUM HYDROXYMETHANESULFINATE AND THIOUREA DIOXIDE IN AQUEOUS SOLUTIONS","authors":"S. Makarov, P. A. Molodtsov, Ilia A. Dereven’kov, E. Naidenko","doi":"10.6060/ivkkt.20216411.6442","DOIUrl":"https://doi.org/10.6060/ivkkt.20216411.6442","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80811525","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
INVESTIGATION OF ELASTIC PROPERTIES AND HARDNESS OF NANOSTRUCTURED CARBON MATERIALS 纳米结构碳材料的弹性性能和硬度研究
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216412.8y
G. Kvashnin, D. Ovsyannikov, B. Sorokin, M. Popov
{"title":"INVESTIGATION OF ELASTIC PROPERTIES AND HARDNESS OF NANOSTRUCTURED CARBON MATERIALS","authors":"G. Kvashnin, D. Ovsyannikov, B. Sorokin, M. Popov","doi":"10.6060/ivkkt.20216412.8y","DOIUrl":"https://doi.org/10.6060/ivkkt.20216412.8y","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87336209","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
INVESTIGATION OF THE REACTIVITY OF THE SURFACE OF A CARBON-CONTAINING SILICATE SORBENT OF PLANT ORIGIN 植物源含碳硅酸盐吸附剂表面反应性的研究
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216411.6408
Roman N. Meretin, Tatiana E. Nikiforova
{"title":"INVESTIGATION OF THE REACTIVITY OF THE SURFACE OF A CARBON-CONTAINING SILICATE SORBENT OF PLANT ORIGIN","authors":"Roman N. Meretin, Tatiana E. Nikiforova","doi":"10.6060/ivkkt.20216411.6408","DOIUrl":"https://doi.org/10.6060/ivkkt.20216411.6408","url":null,"abstract":"В настоящей работе изучен новый эффективный сорбент, полученный путем термической обработки рисовой лузги. Представлены результаты элементного (EDX) анализа образца сорбента. С целью объяснения и прогнозирования химического поведения сорбента и его реакционной способности в отношении ионов тяжелых металлов, исследован функциональный состав данного сорбента методами потенциометрического титрования и ИКспектроскопии. Установлено, что полученный сорбент представляет собой гетерофункциональный полиэлектролит, содержащий кислотные центры различных типов. В нем присутствуют сорбционно-активные группы, оставшиеся от исходной лузги, а также принадлежащие углю и кремнезему. На поверхности сорбента обнаружены карбоксильные группы, спиртовые и фенольные гидроксилы, силанольные и другие функциональные группы, которые выступают в роли активных центров сорбции. Эти центры сорбции могут находиться в сорбенте в виде реакционноспособных фрагментов частично разложившихся органических соединений: целлюлозы, гемицеллюлозы и лигнина. Кроме того, в составе исследуемого образца сорбента выявлено значительное количество диоксида кремния, проявляющего химическую активность по отношению к полярным и ионным соединениям. Функциональные группы сорбента, обнаруженные в результате обработки pK-спектра, в целом, соотносятся с результатами ИК-спектроскопии. Определена общая кислотность сорбента. В рамках проделанной работы изучены его сорбционные свойства по отношению к ионам меди (II) и цинка (II). Установлено, что в процессе сорбции ионов металлов данным сорбентом pH водного раствора снижается, что указывает на ионообменный характер сорбции. Обнаружено, что изменение кислотности среды в процессе сорбции зависит от начальной концентрации ионов металлов в растворе.","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90425048","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: 1
THEORETICAL AND EXPERIMENTAL STUDY OF THE ADSORPTION CAPACITY OF TRANSITION METAL ACETATES IN THE PROCESS OF DESULFURIZATION OF A MODEL HYDROCARBON FUEL 模型碳氢燃料脱硫过程中过渡金属醋酸酯吸附量的理论与实验研究
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216411.6518
A. Okhlobystin, A. Kamyshnikova, K. V. Oleinikova, V. N. Storozhenko, K. P. Pashchenko, N. Berberova
{"title":"THEORETICAL AND EXPERIMENTAL STUDY OF THE ADSORPTION CAPACITY OF TRANSITION METAL ACETATES IN THE PROCESS OF DESULFURIZATION OF A MODEL HYDROCARBON FUEL","authors":"A. Okhlobystin, A. Kamyshnikova, K. V. Oleinikova, V. N. Storozhenko, K. P. Pashchenko, N. Berberova","doi":"10.6060/ivkkt.20216411.6518","DOIUrl":"https://doi.org/10.6060/ivkkt.20216411.6518","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73664363","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
PREPARATION OF COMPOSITE THREADS AND HOLLOW CERAMIC FIBERS BASED ON CARBON FIBRE AND ALUMINUM OXIDE 碳纤维与氧化铝复合螺纹及空心陶瓷纤维的制备
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216412.5y
S. Urvanov, E. A. Pushina, N. V. Kazennov, V. Mordkovich
{"title":"PREPARATION OF COMPOSITE THREADS AND HOLLOW CERAMIC FIBERS BASED ON CARBON FIBRE AND ALUMINUM OXIDE","authors":"S. Urvanov, E. A. Pushina, N. V. Kazennov, V. Mordkovich","doi":"10.6060/ivkkt.20216412.5y","DOIUrl":"https://doi.org/10.6060/ivkkt.20216412.5y","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78807548","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
Bisthiadiazoleamines: synthesis, structure and properties 双硫二唑胺:合成、结构与性能
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216412.6506
Y. Suvorova, E. Petukhova, M. V. Dmitriev, E. Danilova, V. V. Aleksandriiskii
{"title":"Bisthiadiazoleamines: synthesis, structure and properties","authors":"Y. Suvorova, E. Petukhova, M. V. Dmitriev, E. Danilova, V. V. Aleksandriiskii","doi":"10.6060/ivkkt.20216412.6506","DOIUrl":"https://doi.org/10.6060/ivkkt.20216412.6506","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76821078","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 mechanochemical reactions of immobilization of mercury from solid waste 固废汞固定化的机械化学反应研究
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216408.6346
A. Makarova, A. Fedoseev, E. G. Vinokurov
{"title":"Study of mechanochemical reactions of immobilization of mercury from solid waste","authors":"A. Makarova, A. Fedoseev, E. G. Vinokurov","doi":"10.6060/ivkkt.20216408.6346","DOIUrl":"https://doi.org/10.6060/ivkkt.20216408.6346","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79259402","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
STUDYING THE INFLUENCE OF THE INITIAL DIAMOND RAW MATERIALS PROPERTIES ON THE POLYCRYSTALLINE DIAMOND MATERIALS PROPERTIES 研究金刚石原料初始性能对聚晶金刚石材料性能的影响
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216412.4y
S. Perfilov, M. V. Vorobieva, I. Evdokimov, R. Lomakin, I. Pakhomov, Andrei A. Pozdnyakov
{"title":"STUDYING THE INFLUENCE OF THE INITIAL DIAMOND RAW MATERIALS PROPERTIES ON THE POLYCRYSTALLINE DIAMOND MATERIALS PROPERTIES","authors":"S. Perfilov, M. V. Vorobieva, I. Evdokimov, R. Lomakin, I. Pakhomov, Andrei A. Pozdnyakov","doi":"10.6060/ivkkt.20216412.4y","DOIUrl":"https://doi.org/10.6060/ivkkt.20216412.4y","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81105566","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
EFFECT OF THE DISPERSION MEDIUM VISCOSITY ON THE ELECTRORHEOLOGICAL BEHAVIOR OF HALLOYSITE SUSPENSIONS IN POLYDIMETHYLSILOXANE 分散介质粘度对高岭土悬浮液在聚二甲基硅氧烷中的电流变行为的影响
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216411.6402
M. Sokolov, N. M. Kuznetsov, S. Belousov, S. Chvalun
{"title":"EFFECT OF THE DISPERSION MEDIUM VISCOSITY ON THE ELECTRORHEOLOGICAL BEHAVIOR OF HALLOYSITE SUSPENSIONS IN POLYDIMETHYLSILOXANE","authors":"M. Sokolov, N. M. Kuznetsov, S. Belousov, S. Chvalun","doi":"10.6060/ivkkt.20216411.6402","DOIUrl":"https://doi.org/10.6060/ivkkt.20216411.6402","url":null,"abstract":"","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90123330","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: 3
OBTAINING HIGH QUALITY LITHIUM CARBONATE FROM NATURAL LITHIUM-CONTAINING BRINES 从天然含锂盐水中获得高品质碳酸锂
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA Pub Date : 2021-01-01 DOI: 10.6060/ivkkt.20216404.6238
A. Ramazanov, David R. Ataev, M. A. Kasparov
{"title":"OBTAINING HIGH QUALITY LITHIUM CARBONATE FROM NATURAL LITHIUM-CONTAINING BRINES","authors":"A. Ramazanov, David R. Ataev, M. A. Kasparov","doi":"10.6060/ivkkt.20216404.6238","DOIUrl":"https://doi.org/10.6060/ivkkt.20216404.6238","url":null,"abstract":"The aim of this work is to develop a new effective technology for producing high-quality lithium carbonate from natural lithium-containing brines. Freshly deposited aluminum hydroxide was used to separate lithium from the trace amounts of sodium and calcium. It was found that the completeness of lithium extraction from brines purified from magnesium depends on the sorbent dosage, phase contact time, mineralization, pH, and brine temperature. To extract lithium from brines with a mineralization of less than 100 g/dm3, it is necessary to introduce 4 mol of aluminum hydroxide per 1 mol of lithium in the brine. For brines with a mineralization greater than 200 g/dm3, the consumption of the sorbent providing the extraction of lithium more than 96% is 2.5 mol of aluminum hydroxide. Desorption of lithium chloride from lithium-aluminum concentrate is carried out by processing 4-5 canopies of concentrate in a Soxlet type apparatus with the same volume of distilled water. The resulting concentrated solution of lithium chloride is purified from calcium impurities in contact with a saturated solution of lithium carbonate. From a heated aqueous solution of lithium chloride purified from calcium impurities, lithium carbonate is precipitated by dosing a stoichiometric amount of a saturated solution of sodium carbonate into it. The precipitate of lithium carbonate is separated from the mother solution, washed with three portions of a saturated solution of lithium carbonate at a ratio of solid to liquid by weight equal to one to five, in order of decreasing the concentration of sodium in each portion of the wash water. The dried product contains at least 99.6% Li2CO3.","PeriodicalId":14640,"journal":{"name":"IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88929507","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
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