Process for the co-production of acetic acid and dimethyl ether
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United States of America Patent
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Nov 14, 2017
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app pub date -
Jun 12, 2015
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Jun 20, 2014
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Abstract
Catalytic dehydration-hydrolysis process for the co-production of acetic acid and dimethyl ether from a mixture of methanol and methyl acetate and water in which the amount of water fed to the process is controlled by the steps of dehydrating a methanol feed to provide a crude product containing dimethyl ether, unconverted methanol and water, recovering therefrom a stream containing dimethyl ether, water and methanol and a water stream and separating dimethyl ether from the dimethyl-ether containing stream to produce a methanol stream containing methanol and water. At least part of the methanol stream and methyl acetate is supplied to the dehydration-hydrolysis process.
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