Process for preparing 1,2,3,4-butanetetracarboxylic acid

Details Process for preparing 1,2,3,4-butanetetracarboxylic acid Process for preparing 1,2,3,4-butanetetracarboxylic acid

1989-12-14

1994-03-29

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

562593, C07C 5500, C07C 5142

Patent

active

052986535

ABSTRACT:
Butanetetracarboxylic acid with acceptably low levels of color-causing contaminants, suitable for permanent press agent use, is prepared in high conversion and yield from tetraalkyl butanetetracarboxylates by a series of steps including purification of precursor material, hydrolysis with high concentration of acid catalyst, and oxidative purification of product.

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