Solubility of diethylammonium diethyldithiocarbamate in supercritical carbon dioxide with ethanol as the co-solvent

被引：5

作者：

Wang, T ^{[1
]}

Wang, HB ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2003年 / 42卷 / 01期

基金：

中国国家自然科学基金;

关键词：

solubility; supercritical carbon dioxide; diethylammonium diethyldithiocarbamate; co-solvent; ethanol;

D O I：

10.1016/S0255-2701(02)00016-8

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The solubility of diethylammonium diethyldithiocarbamate (Et2NH2DDC), which is used as a chelating agent, in supercritical carbon dioxide containing ethanol as the co-solvent was measured with the dynamic method in the pressure range 10-30 MPa at 308.2-328.2 K. A new method using Peng-Robinson equation plus the modified Schwartzentruber and Galivel-Solastiouk and Renon mixing rule was proposed for the correlation of the experimental data. The properties of the solute, which are necessary for the correlation, were obtained by using the estimation methods. Compared with the classic Peng-Robinson equation with van der Waals II mixing rule method, the proposed model can correlate the solubilities with higher accuracy. The experimental data was well regressed by this new method. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 65

页数：5

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