A catalyst, its preparation and use

Details A catalyst, its preparation and use A catalyst, its preparation and use

B - Operations, Transporting

01

J

B01J 23/85 (2006.01) B01J 23/887 (2006.01) B01J 27/132 (2006.01) B01J 35/02 (2006.01) B01J 35/10 (2006.01) B01J 37/00 (2006.01) B01J 37/08 (2006.01) C01B 13/34 (2006.01) C07C 5/333 (2006.01)

Patent

CA 2674950

A process for preparing a catalyst which process comprises preparing a mixture comprising iron oxide and at least one Column 1 metal or compound thereof, wherein the iron oxide is obtained by heating a mixture comprising an iron halide and at least 0.05 millimoles of a Column 6 metal per mole of iron; a catalyst made by the above described process; an iron oxide composition; a process for the dehydrogenation of an alkylaromatic compound which process comprises contacting the alkylaromatic compound with the catalyst; and a method of using an alkenylaromatic compound for making polymers or copolymers, in which the alkenylaromatic compound has been produced by the dehydrogenation process.

La présente invention concerne un procédé d'élaboration d'un catalyseur consistant à préparer un mélange comprenant de l'oxyde de fer et au moins un métal de la Colonne 1 ou l'un de ses composés. L'oxyde de fer s'obtient par chauffage d'un mélange comprenant un halogénure de fer et au moins 0,05 millimoles d'un métal de la Colonne 6 par mole de fer. L'invention concerne également un catalyseur obtenu selon le procédé, ainsi qu'une composition d'oxyde de fer, un procédé de déshydrogénation d'un composé alkylaromatique par mise en contact du composé alkylaromatique avec le catalyseur, et un procédé d'utilisation d'un composé alcénylaromatique pour la fabrication de polymères et copolymères, le composé alcénylaromatique ayant été obtenu par le procédé de déshydrogénation.

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