Process for preparing bis(para-aminocyclohexyl)methane

US8697914B2 · kind B2 · utility

Assignee

• Bayer Intellectual Property GmbH · DE

Inventors

• Evin Hizaler Hoffmann
• Leslaw Mleczko · Bochum, DE
• Ralph Schellen · Dormagen, DE
• Stephan Schubert · Leverkusen, DE

Key dates

• Filing date: Dec 4, 2009
• Grant date: Apr 15, 2014
• Expiry date: Mar 20, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for preparing bis(para-amino-cyclohexyl)methane by multiphase reaction of methylenedianiline with hydrogen, in which the reaction is performed in 5 to 50 series-connected reaction zones under adiabatic conditions.