Patent · US Active

Continuous process for the hydrogenation of 3-cyano-3,5,5-trimethyl-cyclohexylimine

US8884063B2 · kind B2 · utility

0Cited by

5References

17Claims

0Family size

Assignee

BASF SE

Inventors

Martin Ernst · Ludwigshafen am Rhein, DE
Thomas Hill · Ludwigshafen, DE
Piotr Makarczyk · Weisenheim am Sand, DE
Johann-Peter Melder · Schifferstadt, DE

Key dates

Filing date	Dec 19, 2007
Grant date	Nov 11, 2014
Priority date	—
Expiry date	May 9, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a continuous process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine by reacting a feed stream comprising 3-cyano-3,5,5-trimethylcyclohexylimine with hydrogen and ammonia over hydrogenation catalysts, wherein the basicity of the reaction mixture is increased during the reaction by bringing the reaction mixture into contact with a basic compound which is not ammonia and/or a basic catalyst after part of the 3-cyano-3,5,5-trimethylcyclohexylimine has been reacted.

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