Catalytic coating for the hydrogenation of maleic anhydride and related compounds to give γ-butyrolactone, tetrahydrofuran and derivatives thereof

US7217679B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Holger Borchert · Offstein, DE
• Stephan Schlitter · Schifferstadt, DE
• Rolf Fischer · Heidelberg, DE
• Markus Rösch · Oppenheim, DE
• Frank Stein · Bad Dürkheim, DE
• Ralf-Thomas Rahn · Mannheim, DE
• Alexander Weck · Freinsheim, DE

Key dates

• Filing date: Dec 7, 2001
• Grant date: May 15, 2007
• Expiry date: Aug 23, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J37/0215
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst for the hydrogenation of C4-dicarboxylic acids and/or their derivatives, preferably maleic anhydride, in the gas phase comprises from 5 to 100% by weight, preferably from 40 to 90% by weight, of copper oxide and from 0 to 95% by weight, preferably from 10 to 60% by weight, of one or more metals or compounds thereof selected from the group consisting of Al, Si, Zn, Pd, La, Ce, the elements of groups III A to VIII A and groups I A and II A as active composition applied in the form of a thin layer to an inert support material.