Separation of n-amyl acetate and water from n-amyl alcohol by ex

Details Separation of n-amyl acetate and water from n-amyl alcohol by ex Separation of n-amyl acetate and water from n-amyl alcohol by ex

1985-12-02

1987-06-02

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 57, 203 59, 203 60, 203 63, 560248, 568913, B01D 340, C07C 6754

Patent

active

046701060

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 dimethylsulfoxide; N,N-dimethylacetamide and dimethylsulfoxide; dimethylformamide, N,N-dimethylacetamide and acetamide.

REFERENCES:
patent: 1536545 (1925-05-01), Willkie
patent: 1770414 (1930-07-01), Martin et al.
patent: 4379028 (1983-04-01), Berg et al.
patent: 4507176 (1985-03-01), Berg et al.
patent: 4525245 (1985-06-01), Berg et al.
patent: 4592805 (1986-06-01), Berg et al.

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