2049. LILLIENDAHL, W. C. (Westinghouse Electric Corp.). Production of Thorium. United States Patent 2,537,067, Jan. 9, 1951; appl. filed Apr. 24, 1946. Serial No. 664,583; 1 claim (Cl. 75-84).

Th is produced by reaction of a mixture of the chloride and oxychloride or one of the compounds with Ca, the reaction taking place in a cup enclosed in a container filled with an inert gas. 3 literature refs. and 2 United States patents cited.