PROCESS FOR OPERATING THE EPOXIDATION OF ETHYLENE

WIPO Patent Application WO2001096324

A3

A process for the vapor phase oxidation of ethylene to ethylene oxide, which process comprises reacting a reaction mixture comprising ethylene and oxygen in the presence of a supported highly selective silver-based catalyst by: operating at an initial operation phase wherein fresh catalyst is used, and operating at a further operation phase when a cumulative ethylene oxide production exceeds 0.01 kT ethylene oxide per m<3> of catalyst, wherein in said further operation phase the concentration of ethylene in the reaction mixture is increased; and a method of using ethylene oxide for making 1,2-ethanediol or a corresponding 1,2-ethanediol ether comprising converting the ethylene oxide into the 1,2-ethanediol or the 1,2-ethanediol ether wherein the ethylene oxide has been obtained by the process for the production of ethylene oxide.

JP5182849	Direct production of alkylene oxides from alkanes
WO/2022/049638	METHOD FOR PRODUCING ETHYLENE OXIDE
JP4392242	Heat recovery procedure

EVANS WAYNE ERROL (US)
CHIPMAN PETER INGRAHAM (US)

PCT/US2001/018097

March 28, 2002

June 05, 2001

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SHELL OIL CO (US)
EVANS WAYNE ERROL (US)
CHIPMAN PETER INGRAHAM (US)

C07D301/08; B01J23/68; C07B61/00; C07C29/10; C07C31/20; C07C41/02; C07C43/13; C07D301/10; C07D303/04; (IPC1-7): C07D301/10; B01J23/68; C07C29/10

EP0266015A1	1988-05-04
GB1319004A	1973-05-31
EP0625370A1	1994-11-23
US5545603A	1996-08-13
EP0567273A1	1993-10-27
US5380697A	1995-01-10
EP0557833A1	1993-09-01
US4400559A	1983-08-23
DE19843697A1	2000-03-30
US3935279A	1976-01-27

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