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Stratiform Anorthosite Associations of Differentiated Basitic Massifs in Russia. Part 1. Deposits and Mineral Composition 俄罗斯分异基性丘陵的层状正长岩群。第 1 部分。矿床和矿物成分
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050135
V. A. Krenev, S. V. Fomichev, D. F. Kondakov, E. N. Pechenkina, E. I. Berbekova, V. K. Ivanov
{"title":"Stratiform Anorthosite Associations of Differentiated Basitic Massifs in Russia. Part 1. Deposits and Mineral Composition","authors":"V. A. Krenev,&nbsp;S. V. Fomichev,&nbsp;D. F. Kondakov,&nbsp;E. N. Pechenkina,&nbsp;E. I. Berbekova,&nbsp;V. K. Ivanov","doi":"10.1134/S0040579523050135","DOIUrl":"10.1134/S0040579523050135","url":null,"abstract":"<p>The data on the main (Arsent’evskii, Orongoiskii, Kizirskii, Chineiskii, Patynskii, and Kharlovskii) massifs of stratiform anorthosite deposits in Russia and their location data are given. The problems of classification, petrography, petrochemistry, and mineralogy of these anorthosites are considered.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation of Ti(IV) Concentrate from Spent Lithium-Ion Batteries 从废锂离子电池中分离钛（IV）浓缩物
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050445
A. V. Kozhevnikova, E. S. Uvarova, N. A. Milevskii, Yu. A. Zakhodyaeva, A. A. Voshkin
{"title":"Isolation of Ti(IV) Concentrate from Spent Lithium-Ion Batteries","authors":"A. V. Kozhevnikova,&nbsp;E. S. Uvarova,&nbsp;N. A. Milevskii,&nbsp;Yu. A. Zakhodyaeva,&nbsp;A. A. Voshkin","doi":"10.1134/S0040579523050445","DOIUrl":"10.1134/S0040579523050445","url":null,"abstract":"<p>Lithium–titanate anodes are increasingly being used in the manufacturing of lithium-ion batteries due to their advantages in charge/discharge speed and safety of use relative to graphite anodes. The addition of titanium to the battery composition, along with the high content of cobalt and lithium, results in a further growth of their cost, and the reprocessing of such batteries becomes an extremely topical problem. In the framework of the present article, a comparative analysis of the hydrometallurgical reprocessing of batteries containing a lithium-titanate anode and a nickel–manganese–cobalt cathode by leaching with mineral acids (sulfuric and hydrochloric acids) is performed. In the work, the dependences of the leaching degree of the metals from real samples of the anode and cathode in their mixture on the mineral acid concentration, auxiliary additives, and solid : liquid ratio are demonstrated and the temperature and kinetic dependences for this process are obtained. Based on the results of qualitative and quantitative analysis of the leaching solutions, conditions for processing of the leaching process are proposed for further extractive separation. It is demonstrated that two-step successive leaching with hydrochloric and then sulfuric acid with the release of titanium concentrate is optimal. An important aspect of the work is the study of the joint leaching of the cathode and anode, since in the known processes of mechanical processing the stage of their separation is absent.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and Control of Ethyl Acetate–Ethanol Separation via Pressure-Swing Distillation 通过压力摆动蒸馏法分离乙酸乙酯-乙醇的设计与控制
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050469
Liu Shuhan, Sun Yamei, Dong Xiuqin, Yu Yingzhe
{"title":"Design and Control of Ethyl Acetate–Ethanol Separation via Pressure-Swing Distillation","authors":"Liu Shuhan,&nbsp;Sun Yamei,&nbsp;Dong Xiuqin,&nbsp;Yu Yingzhe","doi":"10.1134/S0040579523050469","DOIUrl":"10.1134/S0040579523050469","url":null,"abstract":"<p>Ethyl acetate can be obtained directly from ethanol by dehydrogenation and this is respected as a promising process. This work explores the design and control of pressure-swing distillation systems for separation of ethyl acetate/ethanol during the ethyl acetate production process. Rigorous steady-state and dynamic simulations are implemented using commercial simulators Aspen Plus and Aspen Dynamics. The dynamic simulation results reveal that the control structure CS1 are unable to maintain the bottom products at their quality specifications while control structure CS2 can only hold the quality specification of ethanol from the bottom of atmospheric column with feed flow rate disturbance. The dynamic responses of dual temperature control (CS3) work pretty well for this partially heat-integrated pressure-swing distillation, even for large feed flow rate and composition disturbances. Effectiveness of dual temperature control with QR/F ratio fixed control structure for feed flow rate disturbance is investigated and results indicated a better performance.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 Antimicrobial Resistance of ZnO-Nanocoated Fabrics in Tropical Climates 研究热带气候下纳米氧化锌涂层织物的抗菌性
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523320015
V. A. Karpov, Yu. L. Koval’chuk, K. A. Komarova, T. A. Semenova, V. O. Abramov, A. V. Abramova, V. M. Bayazitov, Yu. I. Voitov
{"title":"Study of the Antimicrobial Resistance of ZnO-Nanocoated Fabrics in Tropical Climates","authors":"V. A. Karpov,&nbsp;Yu. L. Koval’chuk,&nbsp;K. A. Komarova,&nbsp;T. A. Semenova,&nbsp;V. O. Abramov,&nbsp;A. V. Abramova,&nbsp;V. M. Bayazitov,&nbsp;Yu. I. Voitov","doi":"10.1134/S0040579523320015","DOIUrl":"10.1134/S0040579523320015","url":null,"abstract":"<div><p>The resistance of ZnO-nanocoated fabric samples to the action of mold fungi under laboratory and field conditions of the tropical climate of Vietnam was studied at the mycological site of the Hoa Lac Climatic Testing Station, Hanoi. The ZnO nanocoating was applied in a pilot plant using the sol–gel method under the action of powerful ultrasound with a frequency of 19.1 kHz. Laboratory tests showed high antimicrobial resistance of ZnO-nanocoated fabrics in comparison with the reference sample. Under tropical conditions for 24 months, neither fungal growth nor destruction of the fabric structure was detected on impregnated fabric samples.</p></div>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation of an Industrial Mixture of Decalin or Naphthalene Fluorination Products. Purification of Perfluoro(7-methylbicyclo[4.3.0]nonane) from Close-Boiling Impurities by Heteroazeotropic Distillation 癸醛或萘氟化产品工业混合物的分离。利用异azeotropic 蒸馏法从贴壁杂质中提纯全氟(7-甲基双环[4.3.0]壬烷)
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050500
A. V. Polkovnichenko, E. V. Lupachev, A. V. Kisel’, S. Ya. Kvashnin, N. N. Kulov
{"title":"Separation of an Industrial Mixture of Decalin or Naphthalene Fluorination Products. Purification of Perfluoro(7-methylbicyclo[4.3.0]nonane) from Close-Boiling Impurities by Heteroazeotropic Distillation","authors":"A. V. Polkovnichenko,&nbsp;E. V. Lupachev,&nbsp;A. V. Kisel’,&nbsp;S. Ya. Kvashnin,&nbsp;N. N. Kulov","doi":"10.1134/S0040579523050500","DOIUrl":"10.1134/S0040579523050500","url":null,"abstract":"<p>The process of perfluoro(7-methylbicyclo[4.3.0]nonane) (MBCN) purification from an industrial mixture of decalin or naphthalene fluorination products is considered. According to experimental data, distillation separation allows us to concentrate MBCN to a fraction with the target-component content of more than 0.950 wt. fr., after which the process efficiency begins to decrease quickly; upon reaching a concentration of 0.975 wt. fr., separation practically breaks down (the value of the separation coefficient <span>({{K}_{{{text{sep}}}}})</span> → 1). The process of purification of MBCN by the method of heteroazeotropic distillation using acetone (Aс) as a separating agent is proposed, the process being realized on a batch semi-industrial distillation column. The method makes it possible to intensify significantly the final stage of purification and to increase the MBCN content from 0.950 to more than 0.998 wt. fr., the mass fraction of the enriched fraction sampling comprises more than 0.85 of the load and the product yield being above 88%. The values of the separation coefficients between the distillate and the bottom product and the coefficients of enrichment for the target and impurity components are given; for the MBСN–Aс binary system, data on the liquid–liquid phase equilibrium and heteroazeotrope characteristics are determined.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Processing of Ancylite-Containing Raw Materials by Sorption Conversion 通过吸附转化处理含安赛蜜的原材料
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050160
E. P. Lokshin, O. A. Tareeva
{"title":"Processing of Ancylite-Containing Raw Materials by Sorption Conversion","authors":"E. P. Lokshin,&nbsp;O. A. Tareeva","doi":"10.1134/S0040579523050160","DOIUrl":"10.1134/S0040579523050160","url":null,"abstract":"<div><p><b>Abstract</b>—A technology is proposed to process ancylite-containing raw materials—ore or concentrate. The technology is based on their decomposition with 1 wt % HCl in the presence of a sulfonic cation-exchange resin in hydrogen form at a temperature of 20–50°C. The process flow diagram is given. The technology is characterized by low consumption of reagents and the absence of liquid waste.</p></div>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139498611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Basalt of Kanzafarova Open Pit Mine: Raw Material for Production of Mineral Fiber Kanzafarova 露天矿的玄武岩：生产矿物纤维的原材料
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050263
E. N. Pechenkina, E. I. Berbekova, D. F. Kondakov, S. V. Fomichev, V. A. Krenev
{"title":"Basalt of Kanzafarova Open Pit Mine: Raw Material for Production of Mineral Fiber","authors":"E. N. Pechenkina,&nbsp;E. I. Berbekova,&nbsp;D. F. Kondakov,&nbsp;S. V. Fomichev,&nbsp;V. A. Krenev","doi":"10.1134/S0040579523050263","DOIUrl":"10.1134/S0040579523050263","url":null,"abstract":"<p>The chemical composition of rocks from the Kanzafarova open pit mine is determined by inductively coupled plasma atomic emission spectroscopy; their petrochemical properties are estimated. On the basis of the obtained data, the mineral composition is estimated, permitting the raw material to be referred to the family of basalt basic volcanic rocks of normal alkaline suborder 45 ≤ SiO<sub>2</sub> ≤ 52; 0.5 ≤ (Na<sub>2</sub>O + K<sub>2</sub>O) ≤ 5. This is also confirmed by the results of X-ray phase analysis. Calculation of the coefficient of acidity of the rock allows it to be recommended as a raw material for the production of mineral fiber.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139498613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 Effect of Successive Irradiation by Electrons and Solar Spectrum Quanta on the Optical Properties of a Nanoparticle-Modified Barium Sulfate Powder 研究电子和太阳光谱量子连续辐照对纳米粒子修饰的硫酸钡粉末光学特性的影响
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050214
M. M. Mikhailov, S. A. Yuryev, A. N. Lapin, V. A. Goronchko
{"title":"Studying the Effect of Successive Irradiation by Electrons and Solar Spectrum Quanta on the Optical Properties of a Nanoparticle-Modified Barium Sulfate Powder","authors":"M. M. Mikhailov,&nbsp;S. A. Yuryev,&nbsp;A. N. Lapin,&nbsp;V. A. Goronchko","doi":"10.1134/S0040579523050214","DOIUrl":"10.1134/S0040579523050214","url":null,"abstract":"<p>Changes in the structure, diffuse reflectance spectra, and solar radiation absorption coefficients <i>a</i><sub>s</sub> of the BaSO<sub>4</sub> powder modified with SiO<sub>2</sub> nanoparticles are studied under successive exposure to electrons and solar spectrum quanta in different sequences. The maximum changes Δ<i>a</i><sub>s</sub> in the absorption coefficient of the BaSO<sub>4</sub> powder in the two successive irradiation modes are approximately equal. Irradiation by solar spectrum quanta causes the greatest changes both under the initial exposure and after irradiation by electrons. Regardless of the successive irradiation mode used, defects accumulate mainly in the UV and visible spectral ranges.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Extraction Separation and Chromatographic Separation in a Cascade of Mixer–Settler Extractors 混合器-沉降器串联萃取器中的萃取分离和色谱分离分析
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050548
A. E. Kostanyan, A. A. Voshkin
{"title":"Analysis of Extraction Separation and Chromatographic Separation in a Cascade of Mixer–Settler Extractors","authors":"A. E. Kostanyan,&nbsp;A. A. Voshkin","doi":"10.1134/S0040579523050548","DOIUrl":"10.1134/S0040579523050548","url":null,"abstract":"<p>In a cascade of mixer–settler extractors, both countercurrent extraction process and chromatographic process can be performed. In the chromatographic mode, the organic phase is not removed from the extractors, but circulates between the mixing and settling zones in each unit. In this work, a theoretical analysis was made of the separation in a cascade of mixer–settler extractors in the liquid–liquid chromatography process and the countercurrent liquid extraction process. Conventional chromatographic separation processes and processes with the recycle of the aqueous phase were considered. The prospects of using the principles of chromatography in extraction technologies to obtain pure and ultrapure products on an industrial scale were shown.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mathematical Description of Electric Mass-Transfer Processes Based on Substance Transfer Equation 基于物质转移方程的电传质过程数学描述
IF 0.7 4区 工程技术
Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI: 10.1134/S0040579523050524
L. V. Ravichev, S. I. Ilyina, V. Ya. Loginov, V. I. Bykov, A. A. Titov
{"title":"Mathematical Description of Electric Mass-Transfer Processes Based on Substance Transfer Equation","authors":"L. V. Ravichev,&nbsp;S. I. Ilyina,&nbsp;V. Ya. Loginov,&nbsp;V. I. Bykov,&nbsp;A. A. Titov","doi":"10.1134/S0040579523050524","DOIUrl":"10.1134/S0040579523050524","url":null,"abstract":"<p>Studies of the electrodialysis separation processes under pulsed current have faced problems related to the lack of a mathematical description of the electric mass-transfer processes, taking into account unsteady current modes. The main problem when describing electric mass-transfer processes is the presence of two driving forces, namely the electric potential gradient and the concentration gradient. The objective of the present work is creating a criterion equation describing charge transfer, derived by analogy with the derivation of the substance-transfer equations. As a result, a convective electrical conductivity equation is derived, which expresses in general terms the charge-density distribution in a moving flow. The obtained equation allows us to derive the criteria of electrical similarity, namely the electrical Peclet and Prandtl numbers. The obtained electrical numbers are compared with the classical criteria in terms of their dimensionalities. Using the obtained numbers, the Nusselt number for electric mass-transfer processes is derived, which takes into account the substance transfer both due to the concentration gradient and due to the potential difference, as well as the influence on the electrodialysis separation process of the operating and limiting current density and the geometrical parameters of the plant.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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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