发明名称 |
VERFAHREN ZUM ENTFERNEN VON VERUNREINIGUNGEN AUS DER MUTTERLAUGE BEI DER SYNTHESE VON CARBONSÄURE MIT DRUCKFILTRATION |
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. |
申请公布号 |
DE602004021727(D1) |
申请公布日期 |
2009.08.06 |
申请号 |
DE20046021727T |
申请日期 |
2004.11.16 |
申请人 |
EASTMAN CHEMICAL CO. |
发明人 |
PARKER, KENNY RANDOLPH;LIN, ROBERT |
分类号 |
B01J38/00;C07C51/42;B01D33/06;B01J23/92;B01J31/40;B01J38/04;B01J38/06;C07C51/48 |
主分类号 |
B01J38/00 |
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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