Production of 3-pentenenitrile from 1,3-butadiene

US7781608B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Jens Scheidel · Hirschberg, DE
• Tim Jungkamp · Sandhausen, DE
• Michael Bartsch · Neustadt, DE
• Gerd Haderlein · Bad Kötzting, DE
• Robert Baumann · Mannheim, DE
• Hermann Luyken · Ludwigshafen, DE

Key dates

• Filing date: Jan 27, 2005
• Grant date: Aug 24, 2010
• Expiry date: Nov 30, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene, wherein 1,3-butadiene is reacted with hydrogen cyanide in the presence of at least one catalyst and the stream resulting therefrom is purified distillatively, the bottom temperature during the distillation not exceeding 140° C.