Patent · US Expired

Catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles

US6110856A · kind A · utility

4Cited by
5References
8Claims
0Family size

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Key dates

Filing dateJan 7, 1999
Grant dateAug 29, 2000
Priority date
Expiry dateJan 7, 2019

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C253/30
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A catalyst suitable for preparing aliphatic alpha, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles comprises PA0 (a) metallic cobalt, a cobalt compound or a mixture thereof, the proportion of metallic cobalt based on (a) being from 20 to 100% by weight, PA0 (b) from 10 to 70% by weight, based on (a), of metallic iron, iron oxide, a further iron compound or a mixture thereof, the proportion of iron oxide based on (b) being from 20 to 100% by weight, PA0 (c) from 0 to 1% by weight, based on (a), of a compound based on an alkali metal, an alkaline earth metal or zinc.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.