320. ------. [CARPENTER, G. B.] (E. I. du Pont de Nemours & Co.). Aliphatic Carboxylic Acids. United States Patent 1,924,767. Aug. 29, 1933: appl. filed Aug. 24, 1931. Serial No. 559,123: 13 claims (Cl. 260-116). Chem. Abs., vol. 27, 1933. p. 5340

Patent Abstracts

320. ------. [CARPENTER, G. B.] (E. I. du Pont de Nemours & Co.). Aliphatic Carboxylic Acids. United States Patent 1,924,767. Aug. 29, 1933: appl. filed Aug. 24, 1931. Serial No. 559,123: 13 claims (Cl. 260-116). Chem. Abs., vol. 27, 1933. p. 5340.

In the production of an acid such as propionic acid from steam, CO, and an olefinic hydrocarbon such as C₂H₄, a metal halide such as NaBr or ZnC_l2 is used as a catalyst.