Pub Date : 2023-01-01DOI: 10.31044/1684-5811-2023-24-1-2-7
V. A. Karpov, Yu. L. Kovalchuk, K. A. Komarova, T.A. Semenova, V.O. Abramov, A. Abramova, V. Bayazitov, YU. I. Voytov
В лабораторных и натурных условиях тропического климата Вьетнама (г. Ханой, КИС Хоа Лак) на микологической площадке исследовали стойкость образцов ткани с нанопокрытием ZnO к воздействию плесневых грибов. Нанопокрытие ZnO производилось на опытно-промышленной установке с использованием золь-гель метода под воздействием мощного ультразвука с частотой 19,1 кГц. Лабораторные испытания показали высокую биостойкость тканей с нанопокрытием ZnO по сравнению с контрольным образцом. В тропических условиях на протяжении 24 месяцев на образцах ткани с пропиткой не выявлен рост грибов и разрушение структуры ткани.
在越南热带气候的实验室和自然环境(khanoy, kis hoa lak)中，真菌研究了纳米涂层ZnO对真菌影响的耐药性。ZnO纳米涂层是在一个经验丰富的工业设备上生产的，使用的是高功率超声波，频率为19.1千赫。实验室测试显示，与控制样本相比，ZnO纳米涂层组织的生物稳定性很高。在热带条件下，24个月来，浸渍组织样本没有显示真菌的生长和组织结构的破坏。
{"title":"Investigation of biostability of fabrics with ZnO nanocoating in tropical climates","authors":"V. A. Karpov, Yu. L. Kovalchuk, K. A. Komarova, T.A. Semenova, V.O. Abramov, A. Abramova, V. Bayazitov, YU. I. Voytov","doi":"10.31044/1684-5811-2023-24-1-2-7","DOIUrl":"https://doi.org/10.31044/1684-5811-2023-24-1-2-7","url":null,"abstract":"В лабораторных и натурных условиях тропического климата Вьетнама (г. Ханой, КИС Хоа Лак) на микологической площадке исследовали стойкость образцов ткани с нанопокрытием ZnO к воздействию плесневых грибов. Нанопокрытие ZnO производилось на опытно-промышленной установке с использованием золь-гель метода под воздействием мощного ультразвука с частотой 19,1 кГц. Лабораторные испытания показали высокую биостойкость тканей с нанопокрытием ZnO по сравнению с контрольным образцом. В тропических условиях на протяжении 24 месяцев на образцах ткани с пропиткой не выявлен рост грибов и разрушение структуры ткани.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86943089","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}
Pub Date : 2022-12-22DOI: 10.31044/1684-5811-2022-23-12-502-506
R. A. Alehina, A. Dorohov, Y. Goncharova, A. Sviridov, S. Tuzhilin
The studies of the dynamic viscosity of compositions based on a two-component polyurethane compound with fillers in the form of shungite, talc and basalt fiber in an amount of 3% vol. and adding an organic solvent of dichloromethane in an amount of 10% wt. are described. According to the study results, it has been found out that the most rational compositions for molding into elastic molds are those that contain shungite and talc as fillers.
{"title":"Determination of dynamic viscosity of composite fabrics based on thermoset cast polyurethane","authors":"R. A. Alehina, A. Dorohov, Y. Goncharova, A. Sviridov, S. Tuzhilin","doi":"10.31044/1684-5811-2022-23-12-502-506","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-12-502-506","url":null,"abstract":"The studies of the dynamic viscosity of compositions based on a two-component polyurethane compound with fillers in the form of shungite, talc and basalt fiber in an amount of 3% vol. and adding an organic solvent of dichloromethane in an amount of 10% wt. are described. According to the study results, it has been found out that the most rational compositions for molding into elastic molds are those that contain shungite and talc as fillers.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74256438","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}
Pub Date : 2022-07-01DOI: 10.31044/1684-5811-2022-23-7-310-316
S. A. Orlova, T. V. Khokhlova, O. Tuzhikov, O. O. Tuzhikov, I. V. Lavnikova
{"title":"Technology of polymer and composite materials","authors":"S. A. Orlova, T. V. Khokhlova, O. Tuzhikov, O. O. Tuzhikov, I. V. Lavnikova","doi":"10.31044/1684-5811-2022-23-7-310-316","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-7-310-316","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88325057","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}
Chemical engineers use knowledge of how nature works (science) and the language of science (mathematics) to create value and solve difficult problems for the benefit of society. The key skill that differentiates chemical engineering from other disciplines is the ability to understand, design and operate transformation (physical or chemical) processes. Chemical engineers literally change (transform) the world. Many in the public assume chemical engineers work only in chemical plants and petroleum refineries. The reality is that chemical engineers work in a broad range of industries including pharmaceuticals, biochemicals, semiconductor materials, foods, plastics, paper, steel, consumer goods, automotive, specialty materials, oil & gas production, renewable energy, engineering services, and the list goes on. Key to providing a benefit to society, chemical engineers are responsible for resource conservation, minimizing pollution, minimizing costs, and maximizing quality and safety of processes that make the products.
{"title":"Effects of alkaline etching sludge on technical parameters and phase composition of composite acid-resistant ceramics","authors":"V. Abdrakhimov, E. Abdrakhimova","doi":"10.31044/1684-5811","DOIUrl":"https://doi.org/10.31044/1684-5811","url":null,"abstract":"Chemical engineers use knowledge of how nature works (science) and the language of science (mathematics) to create value and solve difficult problems for the benefit of society. The key skill that differentiates chemical engineering from other disciplines is the ability to understand, design and operate transformation (physical or chemical) processes. Chemical engineers literally change (transform) the world. Many in the public assume chemical engineers work only in chemical plants and petroleum refineries. The reality is that chemical engineers work in a broad range of industries including pharmaceuticals, biochemicals, semiconductor materials, foods, plastics, paper, steel, consumer goods, automotive, specialty materials, oil & gas production, renewable energy, engineering services, and the list goes on. Key to providing a benefit to society, chemical engineers are responsible for resource conservation, minimizing pollution, minimizing costs, and maximizing quality and safety of processes that make the products.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74530742","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}
Pub Date : 2022-05-01DOI: 10.31044/1684-5811-2022-23-5-217-225
V.Z. Abdrakhimov, Elena Abdrakhimov
Проведенные исследования показали, что при содержании А12О3 < 20% в необогащенной каолиновой глине невозможно из нее получить кислотоупорный материал даже при температуре обжига 1300 °C, но введение в такую керамическую массу оптимального количества шамота (40%) при аналогичной температуре обжига уже позволяет получить кислотоупорную плитку. Введение в составы керамических масс алюмосодержащего (Al2O3 > 70%) шлака от производства металлического хрома позволяет уже при температуре обжига 1250 °C получить кислотоупорные материалы с высокими физико-механическими и химическими показателями. Использование алюмосодержащего шлака от производства металлического хрома при температуре обжига 1300 °C способствует образованию муллита и корунда, которые в основном формируют повышенные эксплуатационные свойства кислотоупорных изделий. Кроме того, использование исследуемого шлака с повышенным содержанием оксида хрома (Cr2O3 = 8,5%) способствует появлению на рентгенограмме сесквиоксида, который по структуре аналогичен корунду, не реагирует с растворами щелочей, не растворим в воде, растворяется только в сильных кислотах и при длительном нагревании Сr2О3 является огнеупорным (температура плавления 2435 °C) и очень твердым минералом.
{"title":"Химико-металлургические процессы глубокой переработки рудного, техногенного и вторичного сырья","authors":"V.Z. Abdrakhimov, Elena Abdrakhimov","doi":"10.31044/1684-5811-2022-23-5-217-225","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-5-217-225","url":null,"abstract":"Проведенные исследования показали, что при содержании А12О3 < 20% в необогащенной каолиновой глине невозможно из нее получить кислотоупорный материал даже при температуре обжига 1300 °C, но введение в такую керамическую массу оптимального количества шамота (40%) при аналогичной температуре обжига уже позволяет получить кислотоупорную плитку. Введение в составы керамических масс алюмосодержащего (Al2O3 > 70%) шлака от производства металлического хрома позволяет уже при температуре обжига 1250 °C получить кислотоупорные материалы с высокими физико-механическими и химическими показателями. Использование алюмосодержащего шлака от производства металлического хрома при температуре обжига 1300 °C способствует образованию муллита и корунда, которые в основном формируют повышенные эксплуатационные свойства кислотоупорных изделий. Кроме того, использование исследуемого шлака с повышенным содержанием оксида хрома (Cr2O3 = 8,5%) способствует появлению на рентгенограмме сесквиоксида, который по структуре аналогичен корунду, не реагирует с растворами щелочей, не растворим в воде, растворяется только в сильных кислотах и при длительном нагревании Сr2О3 является огнеупорным (температура плавления 2435 °C) и очень твердым минералом.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85953688","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}
Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-22-1-30-36
A. Kostanyan, N. A. Milevskiy, Y.A. Klychevskikh, A. G. Apostolov, D. Yankov, A. A. Voshkin
{"title":"On operation of system of mixing-settling extractors in modes of chromatography and loose liquid membranes","authors":"A. Kostanyan, N. A. Milevskiy, Y.A. Klychevskikh, A. G. Apostolov, D. Yankov, A. A. Voshkin","doi":"10.31044/1684-5811-2022-22-1-30-36","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-22-1-30-36","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88629091","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}
Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-23-1-17-22
A. Mikhailovskaya, I. Elokhin, I.A Masel
Представлены результаты спектроскопических исследований межмолекулярного взаимодействия активных красителей монохлортриазинового и винилсульфонового типов с катионными поверхностно-активными веществами на основе четвертичных аммониевых солей в водных растворах. Ключевые слова: активные красители, четвертичные аммониевые соли, спектроскопия, агрегация
{"title":"Interaction of active dyes with tetraalkylammonium halides in aqueous solutions","authors":"A. Mikhailovskaya, I. Elokhin, I.A Masel","doi":"10.31044/1684-5811-2022-23-1-17-22","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-1-17-22","url":null,"abstract":"Представлены результаты спектроскопических исследований межмолекулярного взаимодействия активных красителей монохлортриазинового и винилсульфонового типов с катионными поверхностно-активными веществами на основе четвертичных аммониевых солей в водных растворах. Ключевые слова: активные красители, четвертичные аммониевые соли, спектроскопия, агрегация","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80648854","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}
Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-23-6-250-260
N. S. Dymnikova, E. Erokhina, A. P. Moryganov
The conditions for obtaining stable metallic silver hydrosols in the presence of flax fiber extracts have been studied by the method of «green chemistry» and the possibility of using synthesized sols to provide cellulose-containing materials with antimicrobial activity or biosecurity has been proved. The process of synthesis of ultrafine silver particles in the presence of concomitant natural impurities of flax fibers isolated from them during alkaline high-temperature treatment was studied by spectrophotometry, photon correlation spectroscopy and visual observation. The effect of the extract composition on dynamics of the formation of stable silver nanoparticles was determined. IR spectroscopy and potentiometric titration methods proved that an increase in the alkalinity of a cooking solution led not only to an increase in the amount of impurities in the solution, but also to their destruction, and the complex of reducing substances formed in the solution could act as a silver ion reducing agent even at a low extraction temperature. It was proven that antimicrobial activity against test cultures of synthesized sols and cellulose tissue treated with them depended on the conditions of synthesis.
{"title":"New approach to use of domestic flaxseed raw materials","authors":"N. S. Dymnikova, E. Erokhina, A. P. Moryganov","doi":"10.31044/1684-5811-2022-23-6-250-260","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-6-250-260","url":null,"abstract":"The conditions for obtaining stable metallic silver hydrosols in the presence of flax fiber extracts have been studied by the method of «green chemistry» and the possibility of using synthesized sols to provide cellulose-containing materials with antimicrobial activity or biosecurity has been proved. The process of synthesis of ultrafine silver particles in the presence of concomitant natural impurities of flax fibers isolated from them during alkaline high-temperature treatment was studied by spectrophotometry, photon correlation spectroscopy and visual observation. The effect of the extract composition on dynamics of the formation of stable silver nanoparticles was determined. IR spectroscopy and potentiometric titration methods proved that an increase in the alkalinity of a cooking solution led not only to an increase in the amount of impurities in the solution, but also to their destruction, and the complex of reducing substances formed in the solution could act as a silver ion reducing agent even at a low extraction temperature. It was proven that antimicrobial activity against test cultures of synthesized sols and cellulose tissue treated with them depended on the conditions of synthesis.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84397018","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}
Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-23-7-297-304
M. Mikhailov, A. N. Lapin, S. A. Yuryev
{"title":"ON ADDITIVITY OF SEPARATE IRRADIATION OF SOLAR SPECTRUM QUANTA AND AFTER PRELIMINARY IRRADIATION WITH PROTONS ON OPTICAL PROPERTIES OF BASO4 POWDER MODIFIED WITH SIO2 NANOPARTICLES","authors":"M. Mikhailov, A. N. Lapin, S. A. Yuryev","doi":"10.31044/1684-5811-2022-23-7-297-304","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-7-297-304","url":null,"abstract":"","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83769796","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}
Pub Date : 2022-01-01DOI: 10.31044/1684-5811-2022-23-1-10-16
I. Soboleva, S. E. Liashenko
The first stage for the process of phosphoric acid production by dihydrate- hemihydrate method from poor phosphorites was investigated. Experiments on the dihydrate stage kinetics were carried out. Mathematical model was developed based on the process kinetics. The dihydrate stage of phosphoric acid production was optimized. A software package was developed to determine sulfuric acid dissolution efficiency and the solid phase crystallization under different temperatures and concentration conditions.
{"title":"Investigation of the dihydrate stage of extraction phosphoric acid production by dihydrate-hemihydrate method from poor phosphorites","authors":"I. Soboleva, S. E. Liashenko","doi":"10.31044/1684-5811-2022-23-1-10-16","DOIUrl":"https://doi.org/10.31044/1684-5811-2022-23-1-10-16","url":null,"abstract":"The first stage for the process of phosphoric acid production by dihydrate- hemihydrate method from poor phosphorites was investigated. Experiments on the dihydrate stage kinetics were carried out. Mathematical model was developed based on the process kinetics. The dihydrate stage of phosphoric acid production was optimized. A software package was developed to determine sulfuric acid dissolution efficiency and the solid phase crystallization under different temperatures and concentration conditions.","PeriodicalId":9863,"journal":{"name":"Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90107383","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}
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