Composition and improved copper catalyzed fluid bed...

Details Composition and improved copper catalyzed fluid bed... Composition and improved copper catalyzed fluid bed...

C - Chemistry, Metallurgy

07

C

252/68, 260/660.

C07C 17/15 (2006.01) B01J 23/72 (2006.01) B01J 27/10 (2006.01) C07C 17/156 (2006.01)

Patent

CA 1146150

ABSTRACT OF THE DISCLOSURE There is disclosed a method and composition for improving the fluidization characteristics and alleviating or inhibiting stickiness in a supported copper catalyst used as fluid bed catalyst in oxyhy- drochlorinations reactions. The method involves the in situ preparation of the supported copper catalyst by addition of bare support on which no copper is deposited to the supported copper catalyst in the fluidized bed, or the use in the bed as the initial charge or as addition to the bed as makeup, of a composition which is a mixture of supported copper catalyst and bare support. In either event, as the oxyhydrochlorination proceeds, a portion of the copper compound supported catalyst becomes released therefrom and deposited in situ on the bare support, and stickiness of the copper containing catalyst particles to one another in the fluid bed is alleviated or inhibited.

362928

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