发明名称 |
Method and apparatus for recovering carboxlic acids from delute solutions |
摘要 |
A method for recovering carboxylic acids from a dilute aqueous solution thereof having a concentration below about ten percent (10%) by weight, which includes passing the dilute acid solution through a reverse osmosis separator, thereby producing a permeate substantially free of acid and a retentate having an acid concentration above about ten percent (10%) by weight. The retentate is contacted with a liquid extractant for acids to produce an acid-rich extractate and an acid-free raffinate. The acid is then recovered from the acid-rich extractate. |
申请公布号 |
ZA9502622(B) |
申请公布日期 |
1995.12.14 |
申请号 |
ZA19950002622 |
申请日期 |
1995.03.30 |
申请人 |
GLITCH INC. |
发明人 |
RANDA W WYTCHERLEY;RONALD G GUALY;JOSEPH C GENTRY |
分类号 |
B01D11/04;B01D61/02;B01D61/04;C07C51/42;C07C51/43;C07C51/44;C07C51/48;C07C53/00;C07C53/02;C07C53/08;C07C53/122;C07C53/124 |
主分类号 |
B01D11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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