| http://www.w3.org/ns/prov#value | - The catalyst used herein may be selected from elements of Group VIII in the Periodic Table and compounds thereof, for example, chloroplatinic acid, alcohol-modified chloroplatinic acid (see U.S. Pat. No. 3,220,972), complexes of chloroplatinic acid with olefins (see U.S. Pat. Nos. 3,159,601, 3,159,662 and 3,775,452), platinum black and palladium on such carriers as alumina, silica and carbon, rhod
|
