Process for preparing organic acids

Details Process for preparing organic acids Process for preparing organic acids

C - Chemistry, Metallurgy

07

C

260/507.1

C07C 63/00 (2006.01)

Patent

CA 1140588

PROCESS FOR PREPARING ORGANIC ACIDS 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.

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