Process for removing acetone from carbonylation processes

Details Process for removing acetone from carbonylation processes Process for removing acetone from carbonylation processes

1991-10-09

1993-09-14

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Plural distillations performed on same material

Distillation of initial distillate

203 95, 203 96, 203DIG19, 562891, 562898, 568387, 568411, B01D 340, C07C 4583, C07C 5112

Patent

active

052445453

ABSTRACT:
Disclosed is an improved process for the removal of acetone from a production system wherein acetic anhydride is produced by contacting a mixture comprising methyl iodide and methyl acetate and/or dimethyl ether with carbon monoxide in the presence of a carbonylation catalyst or catalyst system. The process comprises two distillation steps wherein acetone is separated from a mixture of methyl acetate, methyl iodide and acetone.

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