文献类型：期刊文献

英文题名：Reactive extraction of 2,3-butanediol from fermentation broth

作者：Li, Yanjun[1];Zhu, Jiawen[1];Wu, Yanyang[1];Liu, Jiaxian[1]

机构：[1]E China Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China

年份：2013

卷号：30

期号：1

起止页码：154

外文期刊名：KOREAN JOURNAL OF CHEMICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000313234800022)】；

基金：The authors are grateful to the National Natural Science Foundation of China (Grant No. 21106039).

语种：英文

外文关键词：2,3-Butanediol; Reactive-extraction; Fermentation Broth; Ion-exchange Resin; Cross-current

摘要：Biochemical 2,3-butanediol is a renewable material, but the lack of an effective separation process limits its industrial application. We developed an effective separation process to recover 2,3-butanediol from fermentation broth by reactive-extraction with ion-exchange resin HZ732 as catalyst. n-Butylaldehyde was used as both reactant and extractant. Feasible operation conditions were obtained as follows: room temperature, C-cat=200 g.L-1, three-stage cross-current extraction, with reactant ratio (V-Butylaldehyde : V-fermentation broth) 0.05 for each stage. Reactive-extraction can recover over 98% of 2,3-butanediol in the form of 2-propyl-4,5-dimethyl-1,3-dioxolane from fermentation broth. Then 2,3-butanediol was obtained by hydrolyzing 2-propyl-4,5-dimethyl-1,3-dioxolane and purified by vacuum distillation. The total yield rate of 2,3-butanediol through the process was over 94% and purity of final product reached 99%.