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2,3-丁二醇发酵液的双水相萃取

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Indexed by:期刊论文

Date of Publication:2008-10-15

Journal:过程工程学报

Included Journals:Scopus、PKU、ISTIC、CSCD

Volume:8

Issue:5

Page Number:897-900

ISSN No.:1009-606X

Key Words:2,3-丁二醇;双水相萃取;乙醇慌酸铵

Abstract:研究了从发酵液中双水相萃取2,3-丁二醇的工艺条件,以目标产物的分配系数和回收率为指标,分别考察了不同双水相萃取体系以及相组成对2,3-丁二醇分配的影响,确定了适合于2,3-丁二醇发酵液萃取的最佳相组成.结果表明,适合2,3-丁二醇双水相萃取的体系为乙醇/硫酸铵体系,对于絮凝后的发酵液,采用硫酸铵浓度为20%(ω)、乙醇浓度为27%(ω)的双水相体系,发酵液中2,3-丁二醇的分配系数和回收率最高,分别达到了7.4和90.18%.该工艺操作简单,能够有效地分离发酵液中的2,3-丁二醇.

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