Katalysator und dessen Herstellung und Verwendung

摘要

1302877 Cobalt molybdate ROHM & HAAS CO 4 Dec 1969 [13 Dec 1968] 18976/72 Divided out of 1302876 Heading C1A A calcined cobalt molybdate is formed by precipitating cobalt molybdate from an aqueous solution containing cobalt ions and molybdate ions, drying and calcining in the presence of oxygen at 610‹ to 630‹ C. for 6 to 10 hours. In the example the cobalt molybdate is precipitated from a solution of ammonium heptamolybdate and cobaltous nitrate by addition of ammonia