Use of modifiers in a dinitrile hydrogenation process at...

Details Use of modifiers in a dinitrile hydrogenation process at... Use of modifiers in a dinitrile hydrogenation process at...

C - Chemistry, Metallurgy

07

C

C07C 253/30 (2006.01) C07C 209/48 (2006.01)

Patent

CA 2552744

Catalytic process for hydrogenating a dinitrile to produce both aminocapronitrile and hexamethylenediamine in which the dinitrile is contacted with hydrogen in the presence of a catalyst and a modifier selected from the group consisting of quaternary ammonium hydroxides, cyanides, fluorides and thiocyanides; quaternary phosphonium hydroxide; carbon monoxide; and hydrogen cyanide.

L~invention concerne un procédé catalytique d~hydrogénation d~un dinitrile de manière à produire de l~aminocapronitrile et de l~hexaméthylènediamine. Dans ce procédé, le dinitrile est mis en contact avec de l~hydrogène en présence d~un catalyseur et d~un modificateur choisi dans le groupe formé par les hydroxydes, cyanures, fluorures et thiocyanures d~ammonium quaternaires ; l~hydroxyde de phosphonium quaternaire ; le monoxyde de carbone ; et l~acide cyanhydrique.

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