文献类型：期刊文献

中文题名：石油亚砜萃取巯基醋酸的研究

英文题名：EXTRACTION OF MERCAPTOACETIC ACID BY PETROLEUM SULFOXIDE

作者：金寄春[1]

机构：[1]华东化工学院化学系

年份：1989

卷号：9

期号：4

起止页码：411

中文期刊名：环境科学学报

外文期刊名：Acta Scientiae Circumstantiae

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSSCI:【CSSCI1998】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：石油亚砜;巯基醋酸;萃取;废水

外文关键词：petroleum sulfoxide; mercaptoacetic acid; extraction; stripping; wastewater treatment.

摘要：对石油亚砜(PSO)萃取巯基醋酸的条件和影响进行了实验研究,确定了石油亚砜通过氢键和巯基醋酸形成的萃合物的组成.为从废水中回收巯基醋酸以及石油硫醚的综合利用提供了依据.
Aqueous mercaptoacetic acid of 0.6956 mol/L was extracted with 40% petroleum sulfoxide in toluene(phase ratio 1:1, 20℃. The distribution ratio was found to be 4.42 which raised to 6.36 with 10% of NaCl added. A three-staged cross current extraction of aqueous mercaptoacetic acid of 63 g/L using 40% petroleum sulfoxide in toluene (phase ratio 1:1, 20℃) provided a 99.3% of extraction efficiency. The extraction percentage of the organic phase (45.5 g/L mercaptoacetic acid) with an eight-staged cross current back-extraction using water(phase ratio 1:1, 60℃) was 85.8 and the percentage of a single-staged back-extraction using ammonia of 0.5756 mol/L was 100%. It was suggested that mercaptoacetic acid and petroleum sulfoxide form extraction complex through hydrogen bond and the structure of the complex is,