Thermodynamic Simulation on Rb2SO4-Cs2SO4-MgSO4-H2O System at 25 °C

被引：6

作者：

Wang, F. Y. ^{[1
]}

机构：

[1] Qinghai Univ Nationalities, Dept Chem, Xining, Peoples R China

来源：

ASIAN JOURNAL OF CHEMISTRY | 2013年 / 25卷 / 13期

关键词：

Phase diagrams; Solubility; Ion-interaction model; Salt lake brine; MINERAL SOLUBILITIES; NATURAL-WATERS; PREDICTION; MODEL; ELECTROLYTES; COEFFICIENTS; K+;

D O I：

10.14233/ajchem.2013.14447

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Pitzer ion-interaction was applied to calculate the solubility isotherms of quaternary system Rb2SO4-Cs2SO4-MgSO4-H2O at 25 degrees C in which the mixing crystals were formed. Theoretical phase equilibrium of Rb2SO4-Cs2SO4-MgSO4-H2O has been obtained assuming that no new solid phases crystallize in them. The calculated phase diagram consists of five crystallization fields, three invariant points and seven univariant curves. The five crystallization fields correspond to Rb2SO4, Cs2SO4, MgSO4 center dot 7H(2)O, Cs2SO4 center dot MgSO4 center dot 6H(2)O and Rb2SO4 center dot MgSO4 center dot 6H(2)O. The results of calculation can be used to model salt crystallization during the concentration of brines.

引用

页码：7631 / 7632

页数：2

共 13 条

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