Method for production of trimethylhexamethylenediamine

US8003826B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Christian Lettmann · Coesfeld, DE
• Gerda Grund · Coesfeld, DE
• Juergen Lippe · Gelsenkirchen, DE
• Cord Knoop · Haltern am See, DE

Key dates

• Filing date: Jan 30, 2008
• Grant date: Aug 23, 2011
• Expiry date: Feb 10, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J37/0221
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to an improved process for preparing trimethylhexamethylenediamine, hereinafter referred to as TMD for short, by hydrogenation of trimethylhexamethylenedinitrile, hereinafter referred to as TMN for short, in the presence of a shaped hydrogenation catalyst of the Raney type.