MASS TRANSFER IN THE SOLID-LIQUID SYSTEM: MECHANISM AND KINETICS OF THE EXTRACTION PROCESS

被引：3

作者：

Semenyshyn, Yevgen ^{[1
]}

Atamanyuk, Volodymyr ^{[1
]}

Rymar, Tetiana ^{[1
]}

Ivashchuk, Oleksandr ^{[1
]}

Hlukhaniuk, Anna ^{[1
]}

机构：

[1] Lviv Polytech Natl Univ, 12 Bandery St, UA-79013 Lvov, Ukraine

来源：

CHEMISTRY & CHEMICAL TECHNOLOGY | 2020年 / 14卷 / 01期

关键词：

extraction kinetics; solid-liquid system; mineral raw materials; vegetable raw materials; target components; DISSOLUTION;

D O I：

10.23939/chcht14.01.121

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The mechanism and kinetics of the target components extraction from mineral raw materials (sulfur from sulfur ore by tetrachlorethylene, Al2O3 from bauxite specs by NaOH, copper from ore and malachite by hydrochloric acid), as well as vegetable oils (from amaranth, amaranth hybrid and camelina by organic solvents) have been studied. Experimental studies to confirm the diffusive nature of the target components extraction from mineral sources have been conducted. Diffusion coefficients for mineral samples have been obtained. It has been established that the target component extraction from the plant raw material occurs by the internal diffusion transfer of the component to the surface of the phase contact and the external diffusion from the surface to the liquid volume. Kinetic and diffusion coefficients for the samples of vegetable raw materials were determined.

引用

页码：121 / 128

页数：8

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