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Patent Abstracts

      319.     ------.  [CARPENTER, G. B.]  (E. I. du Pont de Nemours & Co.)  Aliphatic Carboxylic Acids.  United States Patent 1,924,766, Aug. 29, 1933, appl. filed Aug. 24, 1931.  Serial No. 559,130: 27 claims (Cl. 260-116).  Chem. Abs., vol. 27, 1933. p. 5340.

General claim is made to the production of propionic acid or other aliphatic carboxylic acids from steam, CO, and an olefinic hydrocarbon such as C2H4 in accord with the reaction expressed by the equation RR’C:CR’R”’+H2O+CO=CHRR’.CR”R”’COOH in which R, R’, R” and R’” represent H or an alkyl radical.