Processes for producing an acetic acid product having low butyl acetate content
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United States of America Patent
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Oct 3, 2017
Grant Date -
Jun 9, 2016
app pub date -
Feb 12, 2016
filing date -
Nov 14, 2014
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Abstract
A process for producing an acetic acid product having low butyl acetate content via a carbonylation reaction. The carbonylation reaction is carried out at a temperature from 100 to 300° C., a hydrogen partial pressure from 0.3 to 2 atm, and a metal catalyst concentration from 100 to 3000 wppm, based on the weight of the reaction medium. The butyl acetate concentration in the acetic acid product may be controlled by removing acetaldehyde from a stream derived from the reaction medium and/or by adjusting at least one of reaction temperature, hydrogen partial pressure, and metal catalyst concentration.
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