Method and apparatus for carbonylating methanol with acetic acid enriched flash stream
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United States of America Patent
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Nov 6, 2018
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Mar 8, 2018
app pub date -
Nov 9, 2017
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Apr 29, 2008
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Abstract
A carbonylation process for producing acetic acid including: (a) carbonylating methanol or its reactive derivatives in the presence of a Group VIII metal catalyst and methyl iodide promoter to produce a liquid reaction mixture including acetic acid, water, methyl acetate and methyl iodide; and (b) feeding the liquid reaction mixture at a feed temperature to a flash vessel which is maintained at a reduced pressure.
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