Separation of ethyl acetate from ethanol and water by extractive

Details Separation of ethyl acetate from ethanol and water by extractive Separation of ethyl acetate from ethanol and water by extractive

1982-03-30

1983-04-05

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 57, 203 60, 203 64, 203 65, 560248, B01D 340, C07C 6748

Patent

active

043790283

ABSTRACT:
Ethyl acetate cannot be completely removed from ethanol and water mixtures by distillation because of the presence of the minimum ternary azeotrope. Ethyl acetate can be readily removed from mixtures containing it, ethanol and water by using extractive distillation in which the extractive distillation agent is a higher boiling oxygenated of nitrogenous organic compound or a mixture of these. Typical examples of effective agents are: dimethylsulfoxide, glycerine and diethylene glycol, 1-naphthol, hydroquinone and N,N-dimethylformamide.

REFERENCES:
patent: 3689372 (1972-09-01), Sugano et al.

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