Attrition resistant zeolite catalysts for production of...

B - Operations – Transporting – 01 – J

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B01J 29/06 (2006.01) B01J 21/00 (2006.01) B01J 29/70 (2006.01) B01J 37/00 (2006.01) C07C 209/16 (2006.01) C07C 211/04 (2006.01)

Patent

CA 2178717

This invention provides an attrition resistant catalyst composition and method for producing such composition. The catalyst is comprised of an acidic zeolite, rho or chabazite, and a particulate binder, kaolin, bentonite, alpha-alumina, or titania, which can be optionally modified by treatment with a compound containing Si, Al, P or B. This invention further provides a process for producing methylamines, preferably dimethylamine, comprising reacting methanol and/or dimethyl ether and ammonia in the presence of a catalytic amount of an attrition resistant catalyst of the invention.

L'invention concerne une composition de catalyseur résistante à l'usure par frottement, ainsi qu'un procédé de préparation de ladite composition. Ce catalyseur est composé d'une zéolithe acide, rho ou chabasie et d'un liant particulaire, kaolin, bentonite, alpha-alumine ou oxyde de titane, qu'on peut éventuellement modifi er par traitement avec un composé contenant Si, Al, P ou B. L'invention concerne, de plus, un procédé de production de méthylamines, de préférence diméthylamine, consistant à faire réagir du méthanol et/ou de l'éther de diméthyle et de l'ammoniac en présence d'une quantité catalytique dudit catalyseur résistant à l'usure paar frottement.

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