Separation of formic acid from acetic acid by azeotropic distill

Details Separation of formic acid from acetic acid by azeotropic distill Separation of formic acid from acetic acid by azeotropic distill

1995-09-01

1997-05-27

Conrad, Joseph

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562607, 562609, C07C 5142

Patent

active

056334028

ABSTRACT:
Formic acid is difficult to separate from acetic acid by conventional distillation or rectification because of the proximity of their boiling points. Formic acid can be readily separated from acetic acid by using azeotropic distillation. Effective agents are acetonitrile and isopropyl acetate.

REFERENCES:
patent: 2170834 (1939-08-01), Othmer
patent: 2425542 (1947-08-01), Krieble et al.
patent: 4268362 (1981-05-01), Ogawa et al.
patent: 5160412 (1992-11-01), Berg

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