Patent · US Active

Process for hydrogenating an aromatic amine in the presence of a supported ruthenium catalyst

US7507862B2 · kind B2 · utility

15Cited by

8References

12Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Guido Stochniol · Haltern am See, DE
Bernd Jaeger · Emmelshausen, DE
Thomas Haas · Munster, DE
Norbert Finke · Johannesweg, DE
Werner Burkhardt · Wächtersbach, DE
Juergen Grunert · Alzenau, DE

Key dates

Filing date	Nov 23, 2005
Grant date	Mar 24, 2009
Priority date	—
Expiry date	Nov 15, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

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