文献类型：期刊文献

英文题名：Extraction of hydrogen chloride by a coupled reaction-solvent extraction process

作者：Li, Yunzhao[1];Song, Xingfu[1];Chen, Guilan[1];Sun, Shuying[1];Xu, Yanxia[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China

年份：2015

卷号：9

期号：4

起止页码：479

外文期刊名：FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000365759300007)】；

基金：The authors greatly thank the National High Technology Research and Development Program of China (No. 2011AA06A107) for financial support.

语种：英文

外文关键词：distiller waste; coupled reaction and solvent extraction; N235; extraction mechanism; hydrogen chloride

摘要：A coupled reaction-solvent extraction process was used to remove HCl from a simulated distiller waste. The extraction performances of various extractants and diluents were compared and the apparent basicity of N235 (a mixture of tertiary amines) in various diluents was determined. The best results were obtained using N235 and isoamyl alcohol as the extractant and diluent, respectively. The yield of HCl from the coupled extraction was 75% with this extraction system. The mechanisms for the removal of HCl in both the direct and coupled extractions were investigated. For the coupled extraction, the formation of an R3NHCl ion-pair complex was involved in the HCl removal. For the direct extraction, the mechanism involved the formation of hydrogen bonds at high concentrations of HCl.