Distillation: processes – separatory – Adding material to distilland except water or steam per se – At least two materials
Patent
1992-06-12
1993-11-16
Manoharan, Virginia
Distillation: processes, separatory
Adding material to distilland except water or steam per se
At least two materials
203 61, 203 93, 203 94, 203 96, 203 97, 203 98, 203 99, 203DIG19, 203DIG21, 560248, 568411, 570262, 570263, B01D 334, C07C 4583
Patent
active
052620140
ABSTRACT:
A process for removing acetone from an acetone/methyl acetate/methyl iodide mixture utilizing extractive distillation with water being introduced to the distillation zone above the point of introduction of the mixture and acetic acid being introduced at or above the point of introduction of the mixture. In a preferred embodiment the mixture is subjected to an initial extraction with an aqueous extractant to remove most of the methyl iodide.
The process is particularly applicable to removing acetone by-product in carbonylation processes for the production of acetic anhydride.
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Cooper Jeremy B.
Dixon-Hall John
Smith Stephen J.
Manoharan Virginia
Mehosky Brian L.
The British Petroleum Company p.l.c.
Untener David J.
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