Process for the extraction of carboxylic acids from dilute aqueo

Details Process for the extraction of carboxylic acids from dilute aqueo Process for the extraction of carboxylic acids from dilute aqueo

1985-10-02

1988-01-19

Lone, Werren B.

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

Organic compounds

Carboxylic acids and salts thereof

562580, 562589, 562600, 562608, 562609, 260413, 260419, C07C 5142

Patent

active

047205776

ABSTRACT:
The invention relates to a process for the extraction of carboxylic acids from aqueous solutions with a carboxylic acid content below 8% by weight. A mixture of an aliphatic amine with a total carbon number of at least 10 and a phenol or naphthol is used as extracting agent. The molar ratio of phenol:amine or alkylated phenol:amine or naphthol:amine is in the range from 0.1:1 to around 1.1:1.

REFERENCES:
Wardell et al., J. of Chem. & Engineering Data, vol. 23, No. 2, 1978, pp. 144-147.

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