Use of modifiers in a dinitrile hydrogenation process

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

2006-11-07

2006-11-07

Shameem, Golam M. M. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C564S492000

Reexamination Certificate

active

07132562

ABSTRACT:
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.

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