Patent · US Expired

Hydrogenation catalyst

US6852669B2 · kind B2 · utility

8Cited by
7References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 8, 2001
Grant dateFeb 8, 2005
Priority date
Expiry dateMay 8, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C209/48
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A material useful as catalyst for the hydrogenation of alpha, omega-dinitriles comprises(a) iron or a compound based on iron or mixtures thereof,(b) from 0.001 to 0.3% by weight based on (a) of a promoter based on 2, 3, 4 or 5 elements selected from the group consisting of aluminum, silicon, zirconium, titanium and vanadium,(c) from 0 to 0.3% by weight based on (a) of a compound based on an alkali and/or alkaline earth metal, and also(d) from 0.001 to 1% by weight based on (a) of manganese.

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