PATENT

3788.  VAIL, W.E..  (E. I. du Pont de Nemours & Co.).  Aliphatic Carboxylic Acids.  United States Patent 1,924,764, Aug. 29, 1933, ; appl. filed Dec. 31, 1931, Serial No. 584,294; 8 claims (Cl. 260-116).  Chem. Abs., vol. 27, 1933, p. 5340.

Boron phosphate is used as a catalyst in the production of acids, such as propionic acid, by reaction of steam, CO, and an olefinic hydrocarbon, such as C2H4.