Process for the manufacture of alkene oxide

Details Process for the manufacture of alkene oxide Process for the manufacture of alkene oxide

C - Chemistry, Metallurgy

07

D

260/371.5

C07D 301/10 (2006.01) C07D 303/04 (2006.01)

Patent

CA 1286689

Abstract A process for the epoxidation of alkene to form alkene oxide comprising contacting alkene and an oxy- gen-containing gas under epoxidation conditions in the presence of at least one gaseous efficiency- enhancing member of a redox-half reaction pair, e.g., nitric oxide, and a supported silver catalyst con- taining an efficiency-enhancing amount of a salt of a member of a redox-half reaction pair, e.g., potassium nitrate, drawing from the reaction zone a reactor effluent comprising alkene oxide, carbon dioxide and unreacted alkene, removing at least a portion of the alkene oxide contained in the reactor effluent; recy- cling at least a portion of the reactor effluent from which the alkene oxide has been removed to the reac- tion zone after removing sufficient carbon dioxide from the recycle stream to diminish the activity- reducing effect of carbon dioxide.

515867

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