Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device

US6881702B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Heiko Arnold · Mannheim, DE
• Signe Unverricht · Mannheim, DE
• Raimund Felder · Neustadt, DE
• Klaus Harth · Altleiningen, DE
• Klaus Joachim Müller-Engel · Blankenloch, DE

Key dates

• Filing date: Sep 20, 2001
• Grant date: Apr 19, 2005
• Expiry date: Sep 20, 2021

Classification

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

Abstract

A catalyst suitable for the gas-phase oxidation of organic compounds to α,β-unsaturated aldehydes and/or carboxylic acids and having an active phase comprising a multimetal oxide material is prepared by a process in which a particulate catalyst precursor which contains oxides and/or compounds of the elements other than oxygen which constitute the multimetal oxide material, which compounds can be converted into oxides, is prepared and said catalyst precursor is converted by calcination into a catalytically active form, wherein a stream of the particulate catalyst precursor is passed at substantially constant speed through at least one calcination zone at constant temperature for calcination.