Patent Number: 7,132,562

Title: Use of modifiers in a dinitrile hydrogenation process

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.

Inventors: Allgeier; Alan Martin (Wilmington, DE)

Assignee: Invista North America S.A R.L.

International Classification: C07C 255/04 (20060101); C07C 209/04 (20060101)

Expiration Date: 2019-11-07 0:00:00