Recovery of mercaptoalkanoic acids using alkylene glycol ethers

Details Recovery of mercaptoalkanoic acids using alkylene glycol ethers Recovery of mercaptoalkanoic acids using alkylene glycol ethers

1980-10-03

1982-03-30

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

260399, 562504, 562505, 562506, 562507, C07C14804, C07C14920, C07C14922, C07C14926

Patent

active

043225500

ABSTRACT:
Various mercaptoalkanoic acids are recovered from an aqueous medium or water in which they are contained by a liquid-liquid solvent extraction operation employing at least one of an alkanoic acid ester and an alkylene glycol ether. In one embodiment, thioglycolic acid has been extracted with ethyl acetate. In another embodiment, it has been recovered with ethylene glycol monoethyl ether acetate. In a further embodiment, it has been recovered with diethylene glycol diethyl ether.

REFERENCES:
patent: 2413361 (1946-12-01), Martin
patent: 2594030 (1952-04-01), Coons et al.
patent: 3029279 (1962-04-01), Kondo
patent: 3927085 (1975-12-01), Zengel et al.

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