MANUFACTURE OF SOLID MOLYBDENUM SEDIMENTS FROM WASTE MOLYBDENUM EPOXYLATION CATALYST SOLUTION

摘要

In the process of recovering molybdenum from a spent catalyst solution which is obtained from a molybdenum catalyzed epoxidation of an olefin with an organic hydroperoxide by removing from the crude epoxidation reaction mixture product epoxide and the alcohol corresponding to the hydroperoxide, said process comprises removing and recovering dissolved molybdenum as a molybdenum containing solid by mixing the spent catalyst solution with water in an amount sufficient to produce a two phase system comprising an organic phase and an aqueous phase, heating the resulting aqueous phase which is rich in molybdenum values to precipitate a molybdenum-containing solid and separating the solid.