Process for preparing organic acids

Details Process for preparing organic acids Process for 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

C07C 5120

Patent

active

041951867

ABSTRACT:
A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone but substantially insoluble 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, extracting the resulting solids with a polar solvent to separate therefrom a mixture of polycyclic aromatic polycarboxylic acids substantially soluble in acetone but substantially insoluble in water and a mixture of polycyclic aromatic polycarboxylic acids substantially insoluble in acetone and substantially insoluble in water.

REFERENCES:
patent: 2555410 (1951-06-01), Howard
patent: 2726262 (1955-12-01), Grosskinsky
patent: 3709931 (1973-01-01), Proell et al.
patent: 4052448 (1977-10-01), Schulz et al.

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