发明名称 |
Process for purifying a carboxylic acid |
摘要 |
In a process for purifying a carboxylic acid fraction obtained by liquid phase carbonylation of an alkyl alcohol and/or its reactive derivative in which volatile iridium- and/or volatile co-promoter contaminants are converted to involatile forms by contacting with an iodide in the absence of carbon monoxide or at a partial pressure less than that of the carbonylation reaction. The involatile contaminants are then separated from the carboxylic acid.
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申请公布号 |
US5663430(A) |
申请公布日期 |
1997.09.02 |
申请号 |
US19950460537 |
申请日期 |
1995.06.02 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
MORRIS, GEORGE ERNEST;SMITH, STEPHEN JAMES;SUNLEY, JOHN GLENN;WATT, ROBERT JOHN;WILLIAMS, BRUCE LEO |
分类号 |
B01J23/46;C07C51/10;C07C51/12;C07C51/44;C07C53/08;(IPC1-7):C07C51/42;C07C53/10 |
主分类号 |
B01J23/46 |
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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