04501645 is referenced by 8 patents and cites 7 patents.

Methanol cannot be completely removed from its mixture with acetone by distillation because of the presence of the minimum binary azeotrope. Methanol can be readily removed from mixtures containing it and acetone by using extractive distillation to bring off the methanol as overhead product in a rectification column by using extractive distillation in which the extractive distillation agent is an effective higher boiling organic compound or a mixture of these. Typical examples of effective agents are acetophenone, 3-pentanone, 2,4-pentanedione, ethylacetoacetate, 2-butanone plus benzil.

Title
Separation of methanol from acetone by extractive distillation
Application Number
6/547654
Publication Number
4501645
Application Date
November 1, 1983
Publication Date
February 26, 1985
Inventor
An I Yeh
709 S. 12th Ave., Bozeman, 59715
MT, US
Lloyd Berg
1314 S. Third Ave., Bozeman, 59715
MT, US
IPC
C07C 49/08
C07C 31/04
C07C 29/84
B01D 3/40
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