Separation of ethanol from isopropanol by azeotropic distillatio

Details Separation of ethanol from isopropanol by azeotropic distillatio Separation of ethanol from isopropanol by azeotropic distillatio

1994-09-13

1995-08-01

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 58, 203 60, 203 62, 203 63, 203 68, 203 69, 203 70, 568913, B01D 336, C07C 2984

Patent

active

054377706

ABSTRACT:
Ethanol is difficult to separate from isopropanol by conventional distillation or rectification because of the proximity of their boiling points. Ethanol can be readily separated from isopropanol by azeotropic distillation. Effective agents are sec. butyl acetate, hexene-1 and 1,3-dioxolane.

REFERENCES:
patent: 2483246 (1949-09-01), Stribley
patent: 2487086 (1949-11-01), Amick et al.
patent: 2512585 (1950-06-01), Smith
patent: 3898291 (1975-08-01), Darsi et al.
patent: 4710274 (1987-12-01), Berg et al.
patent: 5338411 (1994-08-01), Berg
patent: 5348625 (1994-09-01), Berg

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