C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/146
C22B 34/34 (2006.01) C01G 39/00 (2006.01) C22B 7/00 (2006.01)
Patent
CA 1180191
80-PD-16 RECOVERY OF MOLYBDENUM AS AN AQUEOUS SOLUTION ABSTRACT OF THE DISCLOSURE The process of separating components of a crude reaction mixture obtained from a molybdenum-catalyzed hydroperoxide epoxidation of an olefin wherein the product epoxide and an alcohol corresponding to the hydroperoxide used are removed from the reaction mixture leaving a spent catalyst solution and sub- jecting the spent catalyst solution to a liquid-to-liquid solvent exaction to separate dissolved molybdenum values, is improved by solvent extracting the spent catalyst solution with an extract- ing medium consisting essentially of water and a water immiscible organic solvent to form a two phase system and then separating the molybdenum-rich aqueous phase extract from the organic phase extract. The molybdenum-rich aqueous phase extract may be treated to recover the molybdenum as a solid or the extract may be treated to obtain an active molybdenum catalyst suitable for reuse as a catalyst in a hydroperoxide epoxidation reaction.
394352
Mocella Michael T.
Taylor Paul D.
Atlantic Richfield Company
Osler Hoskin & Harcourt Llp
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