Vol. 54, No. 2, 2020

Theoretical Foundations of Chemical Engineering

Kinetics of Chemical Precipitation: General Evolutionary Patterns in Different Models

S. K. Myasnikov, A. Yu. Tikhonov and N. N. Kulov p. 249 abstract

Method of Automated Synthesis of Optimal Heat Exchange Network (HEN) Based on the Principle of Fixation of Variables

N. N. Ziyatdinov, I. I. Emel’yanov, T. V. Lapteva, A. A. Ryzhova and A. N. Ignat’ev p. 258 abstract

Unsteady Mass Transfer of Nutrients in Gels with Channels of Different Spatial Structures

B. G. Pokusaev, A. V. Vyazmin, N. S. Zakharov, D. P. Khramtsov and D. A. Nekrasov p. 277 abstract

Changing Diffusion–Convection Modes in Ternary Mixtures with a Diluent Gas

V. N. Kosov, O. V. Fedorenko, M. K. Asembaeva and V. Mukamedenkyzy p. 289 abstract

A Biogenic Silica Synthesis Method

T. P. Shcherbakova and I. N. Vaseneva p. 297 abstract

Mechanism of the Intensification of a Heterogeneous Reduction Reaction with the Liberation of Gas Bubbles

V. P. Meshalkin, S. V. Panchenko, M. I. Dli, V. I. Bobkov and M. V. Chernovalova p. 304 abstract

Extraction of Fe(III), Zn(II), and Mn(II) Using a System with a Green Solvent for Trioctylmethylammonium Thiocyanate

M. I. Fedorova, I. V. Zinov’eva, Yu. A. Zakhodyaeva and A. A. Voshkin p. 313 abstract

Dynamics of Mobile Concentration Fronts in Gas–Liquid Reaction Systems: Analysis and Numerical Experiment

V. V. Dil’man, L. M. Musabekova, A. M. Brener, A. T. Kalbayeva and S. D. Kurakbayeva p. 319 abstract

Intrinsic Hydrodynamic Investigation of Three-Phase Bubble Column: Comparative Experimental Study on Gas Holdup

A. Garmroodi Asil, A. Nakhaei Pour and Sh. Mirzaei p. 331 abstract

Mathematical Modeling of UF₆ Desublimation in a Tank with Horizontal Ribbing

A. A. Orlov, A. F. Tsimbalyuk and R. V. Malyugin p. 342 abstract

Modeling Mechanochemical and Structural Transformations in a Binary Powder Mixture

O. V. Lapshin p. 349 abstract

Optimization of SRT-VI Pyrolysis Furnaces of High-Capacity Ethylene Plant

D. V. Arapov p. 357 abstract

Pressure and Porosity Profiles During Filtration–Expression Process

M. Mahwachi and D. Mihoubi p. 370 abstract

Pressure Loss along the Channel of a Tubular Membrane during the Ultrafiltration of Liquid Media

S. V. Fedosov, V. A. Maslennikov, Yu. P. Osadchii and A. V. Markelov p. 380 abstract