Separation of n-amyl acetate from n-amyl alcohol by extractive d

Details Separation of n-amyl acetate from n-amyl alcohol by extractive d Separation of n-amyl acetate from n-amyl alcohol by extractive d

1985-11-25

1987-09-01

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 57, 203 60, 203 64, 560248, B01D 340, C07C 6748

Patent

active

046907343

ABSTRACT:
n-Amyl acetate cannot be completely removed from n-amyl acetate - n-amyl alcohol - water mixtures by distillation because of the presence of the minimum ternary azeotrope. n-Amyl acetate can be readily removed from mixtures containing it, n-amyl alcohol and water by using extractive distillation in which the extractive distillation agent is a higher boiling organic compound or a mixture of these. Typical examples of effective agents are ethylene glycol; propylene glycol and dimethylsulfoxide; 1,3-butanediol, dimethylformamide and acetamide.

REFERENCES:
patent: 2489619 (1949-11-01), Carlson et al.
patent: 2559519 (1951-07-01), Smith et al.
patent: 2559520 (1951-07-01), Smith et al.
patent: 2575285 (1951-11-01), Carlson et al.
patent: 4379028 (1983-04-01), Berg et al.
patent: 4431838 (1984-02-01), Feldman et al.

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