Process for the recovery of cobalt and manganese from oxidation

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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260429R, 260439R, 502 22, 502 28, 556 49, 556149, C07C 51265

Patent

active

045462020

ABSTRACT:
A process for the recovery of cobalt and manganese from solid aromatic acid oxidation incinerator ash, pyrolysis sand and pyrolysis char is disclosed. The process comprises heating the solid residue at a temperature of about 120.degree. to about 300.degree. C. and a pressure of about 3 atmospheres to about 30 atmospheres. The recovered catalyst is useful for the oxidation of alkyl aromatic hydrocarbons to their corresponding di- or tricarboxylic acids which are used for the manufacture of fibers, films and molded products.

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