04525245 is referenced by 7 patents and cites 5 patents.

n-Butyl acetate cannot be completely removed from n-butyl acetate - n-butanol - water mixtures by distillation because of the presence of the minimum ternary azeotrope. n-Butyl acetate can be readily removed from mixtures containing it, n-butanol and water by using extractive distillation in which the extractive distillation agent is a higher boiling oxygenated, nitrogenous and/or sulfur containing organic compound or a mixture of these. Typical examples of effective agents are dimethylsulfoxide; dimethylsulfoxide and 1,4-butanediol; dimethylsulfoxide, dimethylformamide and 1,6-hexanediol.

Title
Separation of n-butyl acetate from n-butanol by extractive distillation
Application Number
6/608040
Publication Number
4525245
Application Date
May 7, 1984
Publication Date
June 25, 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 67/48
B01D 3/40
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