PATENT

3442.  SPENCE, J. A. (California Research Corp.).  Recovery of Carbonylation Catalyst.  United States Patent 2,547,178, Apr. 3, 1951.  Chem. Abs., vol. 45, 1951, p. 5844.

Carbonyl-forming metal catalysts are separated from the organic products of a catalytic conversion process in which the carbonyl-forming metal has been used as the active catalyst component by causing the organic products to react with a gas containing O₂ at a temperature generally 100° below the effective oxidation temperature of the organic products until the entrained metal compounds are oxidized to a recoverable form.  They are then separated from the organic products.  The process is suitable for use with catalysts of Ni, Co, and Fe.