发明名称 |
REMOVAL OF PERMANGANATE REDUCING COMPOUNDS FROM METHANOL CARBONYLATION PROCESS STREAM |
摘要 |
An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for reducing the formation of alkyl iodides and C<SUB>3-8 </SUB>carboxylic acids by removing permanganate reducing compounds ("PRC's") from the light phase of the condensed light ends overhead stream, including (a) distilling the light phase to yield a PRC enriched overhead stream; and (b) extracting the third overhead stream with water in at least two consecutive stages and separating therefrom one or more aqueous streams containing PRC's.
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申请公布号 |
US2005197508(A1) |
申请公布日期 |
2005.09.08 |
申请号 |
US20040708420 |
申请日期 |
2004.03.02 |
申请人 |
CELANESE INTERNATIONAL CORPORATION |
发明人 |
SCATES MARK O.;TRUEBA DAVID A.;ZINOBILE RAYMOND J. |
分类号 |
C07C51/44;C07C51/48;(IPC1-7):C07C51/42 |
主分类号 |
C07C51/44 |
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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