Process for treating aldol-condensation polyol waste liquor

Details Process for treating aldol-condensation polyol waste liquor Process for treating aldol-condensation polyol waste liquor

1976-08-23

1978-04-11

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

560248, 260542, 260637P, 260637P, 423551, C07C 2924, C07C 5308, C01D 1506

Patent

active

040839311

ABSTRACT:
A process for treating and recovering components from aldol-condensation polyol waste liquor containing sodium formate, water, polyol, and organic by-products comprising A. vacuum crystallizing and removing sodium formate; B. introducing methanol and sulfuric acid; C. distilling to remove and recover methyl formate; D. increasing the pH to about 6.5 to 7.0; E. cooling to precipitate Glauber's salt, polyol and organics; and F. adding water to dissolve and separate the Glauber's salt and recover substantially pure polyol and organics.

REFERENCES:
patent: 1039875 (1912-10-01), Wolff
patent: 2407920 (1946-09-01), Cox
patent: 2433323 (1947-12-01), Reiter
patent: 3357899 (1967-12-01), Robeson
patent: 3578703 (1971-05-01), Schoenbrunn et al.

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