Catalyst-precursor for the production of maleic acid anhydride and method for the production thereof

US7169732B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Jens Weiguny · Freinsheim, DE
• Sebastian Storck · Mannheim, DE
• Mark Duda · Ludwigshafen, DE
• Cornelia Katharina Dobner · Ludwigshafen, DE

Key dates

• Filing date: Mar 12, 2003
• Grant date: Jan 30, 2007
• Expiry date: Oct 29, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2523/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms, which comprises