发明名称 |
PROCESS FOR REMOVAL OF IMPURITIES FROM MOTHER LIQUOR IN THE SYNTHESIS OF CARBOXYLIC ACID USING PRESSURE FILTRATION |
摘要 |
A process is disclosed that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves recovery of a metal catalyst from an oxidizer purge stream through the use of a pressure filter, the combining of water with a mother liquor to recover the metal catalyst and then subjecting an aqueous mixture so formed to a single stage extraction with an extraction solvent to produce an extract stream comprising organic impurities and a raffinate stream comprising the metal catalyst.
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申请公布号 |
US2007284317(A1) |
申请公布日期 |
2007.12.13 |
申请号 |
US20070842469 |
申请日期 |
2007.08.21 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
PARKER KENNY R.;LIN ROBERT |
分类号 |
B01D37/04;B01J38/00;B01D33/06;B01D35/18;B01J23/92;B01J31/40;B01J38/04;B01J38/06;C07C51/42;C07C51/48 |
主分类号 |
B01D37/04 |
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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