Continuous method for producing primary aliphatic amines from aldehydes

US9108898B2 · kind B2 · utility

Assignee

• OXEA GMBH · DE

Inventors

• Dirk Bermann · Bad Hersfeld, DE
• Matthias Eisenacher · Wesel, DE
• Sebastian Geisel · Essen, DE
• Leif Johnen · Voerde, DE
• Peter Heymanns · Essen, DE
• Norman Nowotny · Essen, DE
• Kurt Schalapski · Oberhausen, DE
• Heinz Strutz · Usingen, DE

Key dates

• Filing date: Jul 11, 2013
• Grant date: Aug 18, 2015
• Expiry date: Jul 11, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2603/68
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A continuous process for preparing primary aliphatic amines having 3 to 18 carbon atoms by reacting corresponding aliphatic aldehydes with ammonia and hydrogen in the presence of a hydrogenation catalyst, characterized in that the reaction is carried out without solvent at a molar ratio of aliphatic aldehyde to ammonia of more than 1 to 16, above the critical temperature and above the critical pressure of ammonia.