发明名称 |
Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid |
摘要 |
Disclosed is a process that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic acid. The process involves the addition of a wash solution to a high temperature molten dispersion to recover the metal catalyst and then subjecting an aqueous mixture or purified aqueous mixture so formed to a single stage extraction to remove organic impurities to produce an extract stream and a raffinate stream comprising the metal catalyst.
|
申请公布号 |
US7452522(B2) |
申请公布日期 |
2008.11.18 |
申请号 |
US20040948591 |
申请日期 |
2004.09.23 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
LIN ROBERT;DE VREEDE MARCEL |
分类号 |
B01D11/00;B01D11/04;B01J23/94;B01J38/00;B01J38/04;B01J38/06;C07B61/00;C07C51/265;C07C51/42;C07C51/48;C07C63/26 |
主分类号 |
B01D11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|