Ethylene oxide catalyst

Details Ethylene oxide catalyst Ethylene oxide catalyst

B - Operations, Transporting

01

J

B01J 23/66 (2006.01) C07D 301/10 (2006.01) C07D 303/04 (2006.01)

Patent

CA 2170032

This invention relates to an ethylene oxide catalyst which contains, prior to the catalyst's first use in the conversion of ethylene to ethylene oxide, silver, one or more alkali metal promoters and 0.4 × 10- 3 to 4.0 × 10-3 moles of chloride per mole of silver deposited on an alpha alumina carrier. The catalyst provides for an improved start-up when slatted up in the presence of ethylene oxide, oxygen and chlorohydrocarbon moderator.

L'invention concerne un catalyseur d'oxyde d'éthylène contenant avant sa première utilisation dans la conversion d'éthylène en oxyde d'éthylène, de l'argent, un ou plusieurs promoteurs de métal alcalin et de 0,4 x 10<-3> à 4,0 x 10<-3> moles de chlorure par mole d'argent déposée sur un support d'alumine alpha. Ce catalyseur permet une meilleure induction lorsqu'il est induit en présence d'oxyde d'éthylène, d'oxygène et d'un modérateur de chlorohydrocarbure.

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