Process of preparing organic acids

Details Process of preparing organic acids Process of preparing organic acids

1978-07-12

1980-03-25

Myers, Jane S.

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

Organic compounds

Carboxylic acids and salts thereof

C07G 5120

Patent

active

041951859

ABSTRACT:
A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone and substantially soluble in water which comprises subjecting a slurry containing coal to reaction with aqueous nitric acid in an atmosphere containing molecular oxygen, mechanically separating the solids in the resulting slurry, separating nitric acid and water from the resulting filtrate and then extracting the remainder of said filtrate with a polar solvent to obtain said mixture of polycyclic aromatic polycarboxylic acids substantially soluble in acetone and substantially soluble in water.

REFERENCES:
patent: 2555410 (1951-06-01), Howard
patent: 2726262 (1955-12-01), Grosskinsky et al.
patent: 3709931 (1973-01-01), Proell et al.
patent: 4137418 (1979-01-01), Schultz et al.

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