Linear models of three-phase extraction processesTheoretical Foundations of Chemical Engineering - Tập 41 - Trang 755-759 - 2007
A. E. Kostanyan, A. M. Safiulina, I. G. Tananaev
Single-stage and multistage linear-law three-phase extraction processes are considered, and analytical relationships for calculating the extraction efficiency are derived.
Rational Use of Multicomponent Brines Extracted Together with OilTheoretical Foundations of Chemical Engineering - Tập 54 - Trang 756-761 - 2020
A. D. Ryabtsev, N. P. Kotsupalo, A. A. Kurakov, N. M. Nemkov, A. G. Vakhromeev
The expediency of using multicomponent brines extracted together with oil (gas) as the raw material for obtaining lithium products and products required for oil fields has been shown. After the lithium concentrate is obtained, the brine is used for obtaining bromine, calcium bromide, magnesium oxide and chloride, and sodium chloride for the electrochemical obtainment of reagents for technological ...... hiện toàn bộ
Electrochemical production of aluminum hydroxide from kaolinsTheoretical Foundations of Chemical Engineering - Tập 50 - Trang 806-811 - 2016
T. Yu. Eranskaya, V. S. Rimkevich
It has been shown that an electric spark discharge in saturated alkaline solution acts as a catalyst of ionization during the decomposition of kaolinite into aluminate and silicate components. The production of aluminum hydroxide from KM-1-grad kaolin (Chalgansk deposit) is 24.8–37.2% of the estimated value.
Optimization of the Production Process of Biologically-Active Betulin Diacetate from Raw and Activated Birch BarkTheoretical Foundations of Chemical Engineering - Tập 52 - Trang 664-669 - 2018
S. A. Kuznetsova, B. N. Kuznetsov, Yu. N. Malyar, E. S. Skurydina, G. P. Skvortsova, R. Z. Pen, N. V. Chesnokov, O. A. Khanchich
The effect of the conditions of the acetylation process of raw and activated birch bark on the yield and composition of the products is investigated. The structure of biologically active betulin diacetate (BDA) is confirmed with physicochemical methods. The optimal regimes of the one-step original method for the production of BDA from raw and activated birch bark are established using the experime...... hiện toàn bộ
Calculating the number of actual separation stages in mass transfer columnsTheoretical Foundations of Chemical Engineering - Tập 46 - Trang 567-575 - 2012
V. I. Elizarov, D. V. Elizarov, S. A. Merzlyakov, S. G. D’yakonov
is the A method is proposed for calculating the number of actual separation stages (trays) in columns from the given concentration of components in the original mixture and at the ends of the column (in the overhead and bottom products).
Separation of Concentrated Solid–Liquid SystemsTheoretical Foundations of Chemical Engineering - Tập 37 - Trang 244-249 - 2003
S. Ya. Kvashnin, R. A. Kvashnin
The effect of the interaction between particles of the settling solid phase on the separation efficiency in hindered settling of a suspension is analyzed.
Concept of randomness in chemistry and ambiguity in the results of chemical experimentsTheoretical Foundations of Chemical Engineering - Tập 34 - Trang 313-323 - 2000
I. V. Melikhov
A general approach to the analysis of the effect of random factors on processes in physicochemical and chemical systems is proposed. A probabilistic model of a system is constructed, which is based on the principle of variability of complex systems. The simplest functions of distribution of systems with respect to the parameters of state are presented. The function of distribution of replica exper...... hiện toàn bộ
Optimal Design of a Chemical-Technological Complex for Coprocessing Cracking and Pyrolysis GasesTheoretical Foundations of Chemical Engineering - Tập 52 - Trang 956-962 - 2019
A. M. Aliyev, A. R. Safarov, I. I. Osmanova, A. M. Quseynova, Z. A. Mamedov
This paper completes our work on calculation of a chemical-technological complex for coprocessing cracking and pyrolysis gases on the basis of a method developed for optimal design of a chemical-technological complex (CTC) with progressive fulfilment of steps aimed at optimizing the entire complex with consideration of the mutual influence of all its processes. Using the mathematical model of the ...... hiện toàn bộ