文献类型：期刊文献

英文题名：ENHANCED EXTRACTION OF 2,3-BUTANEDIOL BY MEDLEY SOLVENT OF SALT AND n-BUTANOL FROM AQUEOUS SOLUTION

作者：Wu, Yan-Yang[1];Chen, Kui[1];Zhu, Jia-Wen[1];Wu, Bin[1];Ji, Lijun[1];Shen, Ya-Ling[2]

机构：[1]Chinese Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Bio Reactor Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：92

期号：3

起止页码：511

外文期刊名：CANADIAN JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20140617292305);WOS:【SCI-EXPANDED(收录号:WOS:000330606200011)】；

基金：The financial support of the National Natural Science Foundation of China (grant number 21106039) is gratefully acknowledged.

语种：英文

外文关键词：2,3-butanediol; extraction; n-butanol; salt

摘要：Enhanced extraction of 2,3-butanediol by adding salt into solvent n-butanol has been studied in this paper. Ternary phase diagrams for 2,3-butanediol+water+salt have been determined. The influences of phase ratio, type of salts and salt content on distribution coefficient and selectivity have also been investigated systematically. With phase ratio of 0.75 (w/w) and salt content of K2HPO4 of 25% (w/w), the distribution coefficient, separation factors and recovery yield in a single extraction process by n-butanol can reach 5.2%, 34% and 80%, respectively. Salt addition can greatly enlarge the two phase region and enhance extraction simultaneously in this system.