3819. ----- [VESTERDAL, H. G]. (Standard Oil Development Co.) Process of Preparing an Iron Catalyst Promoted With an Alkali Metal Fluoborate. United States Patent 2,471,130, May 24, 1949; appl. filed July 12, 1947, Serial No. 760,691; 3 claims (Cl. 252-433). chem.. Abs., vol. 44, 1950, p. 317.

The process is similar to that described in United States Patent 2,471,129, (abs. 3818).