Production of active molybdenum catalyst

Details Production of active molybdenum catalyst Production of active molybdenum catalyst

C - Chemistry, Metallurgy

07

D

260/372.3

C07D 301/12 (2006.01) B01J 23/28 (2006.01) B01J 31/40 (2006.01) C07D 301/19 (2006.01)

Patent

CA 1169083

PRODUCTION OF ACTIVE MOLYBDENUM CATALYST Abstract Of The Disclosure In the process of epoxidation of an olefinic compound with an organic hydroperoxide catalyzed by a liquid solution of dissolved molybdenum wherein the crude epoxidation reaction mixture is separated into product components including a product epoxide, an alcohol corresponding to the hydroperoxide reactant and a spent catalyst solution, and wherein said spent catalyst solution is treated by a) extracting molybdenum values from the spent catalyst solution by a liquid-to-liquid extraction with an extracting medium consisting essentially of water or water and a water immiscible organic solvent, b) separating the molybdenum-rich aqueous phase, c) removing water and lower boiling organic compounds from the separated aqueous phase extract and recovering a concentrated molybdenum solution, wherein the improvement comprises introducing the concentrated molybdenum solution of c) into a mixture of an olefin and a hydroperoxide to catalyze the epoxidation of the olefin.

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