Process for the purification of esters of mercapto acids

Details Process for the purification of esters of mercapto acids Process for the purification of esters of mercapto acids

1989-08-24

1991-02-19

Bascomb, Wilbur

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 29, 203 33, 203 39, 203 51, 203 68, 203 69, 560147, B01D 334, C07C 3204

Patent

active

049941500

ABSTRACT:
The present invention provides a process to recover esters of mercapto acids from solutions containing water by mixing an extraction mixture comprising cycloalkane, arene, and an aqueous inorganic salt solution with an ester of mercapto acid and water solution followed by separating and distilling the resultant organic phase to recover the ester of mercapto acid.

REFERENCES:
patent: 3404175 (1968-10-01), Mercier
patent: 3414485 (1968-12-01), Speed
patent: 3465057 (1969-09-01), Cameron et al.
patent: 3663624 (1972-05-01), Jones
patent: 4185155 (1980-01-01), Bader et al.
patent: 4342627 (1982-08-01), Cane et al.
patent: 4889950 (1989-12-01), Bott et al.
Encyclopedia of Chemical Technology, vol. 9, 1980, pp. 291-297.
Inorganic Anal. Chem., vol. 89, 1978, Abstract 122420v, Synthesis of Thioglycolic Acid Esters and Their Use in Analytical Chemistry.

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