发明申请
- 专利标题： Process for separating and recovering C4 dicarboxylic acids
- 专利标题（中）： 分离回收C4二羧酸的方法
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申请号： US13379585申请日： 2010-06-30
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公开(公告)号： US20120168310A1公开(公告)日： 2012-07-05
- 发明人: Joseph Jump , Stephen Brown
- 申请人： Joseph Jump , Stephen Brown
- 申请人地址： US CA Davis US NC Franklinton
- 专利权人： NOVOZYMES, INC.,NOVOZYMES NORTH AMERICA, INC.
- 当前专利权人： NOVOZYMES, INC.,NOVOZYMES NORTH AMERICA, INC.
- 当前专利权人地址： US CA Davis US NC Franklinton
- 国际申请： PCT/US10/40616 WO 20100630
- 主分类号： B01D61/44
- IPC分类号： B01D61/44
摘要：
The present invention relates to processes for separating and recovering the C4 dicarboxylic acid, comprising: (a) subjecting an aqueous solution comprising a salt of the C4 dicarboxylic acid to concentrating electrodialysis to concentrate the salt of the C4 dicarboxylic acid in the aqueous solution; and (b) subjecting the resulting concentrate to bipolar membrane electrodialysis to convert the salt of the C4 dicarboxylic acid into the free acid of the C4 dicarboxylic acid.