Title:
メタノールのカルボニル化工程のストリームからの過マンガン酸還元性化合物の除去
Document Type and Number:
Japanese Patent JP2007526310
Kind Code:
A
Abstract:
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 C3-8 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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Inventors:
Skates, Mark O
Torueva, David A.
Ginoville, Raymond Jay
Torueva, David A.
Ginoville, Raymond Jay
Application Number:
JP2007501855A
Publication Date:
September 13, 2007
Filing Date:
February 24, 2005
Export Citation:
Assignee:
Celanese International Corporation
International Classes:
C07C51/44; C07C51/48; C07C53/08; C07C51/12
Domestic Patent References:
| JPH0867650A | 1996-03-12 | |||
| JP2000072712A | 2000-03-07 |
Foreign References:
| WO1996033965A1 | 1996-10-31 |
Attorney, Agent or Firm:
Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita