Preparation of a multimetal oxide material

US7038082B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Frieder Borgmeier · Mannheim, DE
• Klaus Joachim Müller-Engel · Blankenloch, DE
• Hartmut Hibst · Schriesheim, DE
• Martin Dieterle · Ludwigshafen, DE

Key dates

• Filing date: Aug 26, 2003
• Grant date: May 2, 2006
• Expiry date: Jan 4, 2024

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 multimetal oxide material which contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and if desired promoters and has a specific X-ray diffraction pattern, in which process the last process step comprises washing with acidic liquids. In addition, a multimetal oxide material obtainable in such a way is used as a catalyst for heterogeneously catalyzed gas-phase partial oxidations and/or ammoxidation of hydrocarbons.