Hydrocyanation method

US7439381B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Tim Jungkamp · Sandhausen, DE
• Dagmar Pascale Kunsmann-Keitel · Ludwigshafen am Rhein, DE
• Michael Bartsch · Neustadt, DE
• Robert Baumann · Mannheim, DE
• Gerd Haderlein · Bad Kötzting, DE
• Hermann Luyken · Ludwigshafen, DE
• Jens Scheidel · Hirschberg, DE

Key dates

• Filing date: Jan 26, 2005
• Grant date: Oct 21, 2008
• Expiry date: Jul 11, 2025

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 with hydrogen cyanide over at least one catalyst, wherein the 1,3-butadiene and/or hydrogen cyanide is contacted with at least one microporous solid before the reaction.