EFFECT OF A DISSOLVED-GAS ON THE SOLUBILITY OF AN ELECTROLYTE IN AQUEOUS-SOLUTION

被引：19

作者：

CORTI, HR

KRENZER, ME

DEPABLO, JJ

PRAUSNITZ, JM

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1990年 / 29卷 / 06期

关键词：

D O I：

10.1021/ie00102a014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The solubility of Na2SO4 in aqueous CO2 solutions has been measured at 50 and 75 °C and pressures to 200 bar. To calculate the effect of gas concentration on the solubility of the salt, we use thermodynamic-consistency equations that relate the solubility of the salt to the Setschenow constant and other thermodynamic properties. The effect of pressure on the salt solubility is estimated from volumetric data for the aqueous electrolyte solution and for the solid salt. Calculated and experimental results are in good agreement. By use of the thermodynamic-consistency analysis, predictions are made for the solubility of NaCl in aqueous solutions containing CO2 or CH4, using available data for gas solubility in the respective binary electrolyte solutions. The predicted decrease of NaCl solubility with rising CO2 concentration is confirmed experimentally at 50 °C. © 1990, American Chemical Society. All rights reserved.

引用

页码：1043 / 1050

页数：8

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