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

1993-11-01

1994-11-15

Dees, JoseG.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5524

Patent

active

053649648

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.

REFERENCES:
patent: 5248396 (1993-09-01), Casanova et al.

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