Improved process for ethylene epoxidation

Details Improved process for ethylene epoxidation Improved process for ethylene epoxidation

C - Chemistry, Metallurgy

07

D

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

Patent

CA 2078480

IMPROVED PROCESS FOR ETHYLENE EPOXIDATION (D#81,125-F) ABSTRACT OF THE DISCLOSURE Disclosed is an improved process for the epoxidation of ethylene, wherein ethylene is reacted with oxygen in a mol ratio of about one, in the presence of a silver metal catalyst and a halide gas phase inhibitor, at a pressure of about 200 to 300 psig, said improvements comprising: introducing into the reaction zone a feed gas mixture comprising: 30 to 90 mol% ethylene, 0 to 55 mol% methane, 0 to 15 mol% one or more inert, non-hydrocarbon gases or mixtures thereof, 0 to 10 mol% carbon dioxide, 2 to 10 mol% oxygen, 1 to 50 ppm organic halide gas phase inhibitor, and maintaining the temperature in the reaction zone between 180 and 350°C.

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