发明申请
- 专利标题： Process for treating liquid
- 专利标题（中）： 处理液体的方法
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申请号： US10225016申请日： 2002-08-21
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公开(公告)号： US20030000894A1公开(公告)日： 2003-01-02
- 发明人: Francis H. Verhoff , Sanet Grond , Fadl Hendricks , Lakshminarayanan Pattabiraman Raman
- 优先权： ZA94/0711 19940912
- 主分类号： B01D061/00
- IPC分类号： B01D061/00
摘要：
A process for treating a liquid comprising subjecting a liquid containing, in solution, citric acid as well as a less desirable component having a similar molecular weight to citric acid, to nanofiltration in a filtration step. From the filtration step, a permeate in which the ratio of the concentration of the citric acid to that of the less desirable component is greater than the ratio of the concentration of the citric acid to that of the less desirable component in the solution, is obtained.
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