Method for producing acrolein by heterogeneous catalytic gas-phase partial oxidation of propene

US6410785B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Peter Zehner · Ludwigshafen, DE
• Otto Machhammer · Mannheim, DE
• Heiko Arnold · Mannheim, DE
• Klaus Joachim Müller-Engel · Blankenloch, DE

Key dates

• Filing date: Jul 18, 2001
• Grant date: Jun 25, 2002
• Expiry date: Jul 18, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/252
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for the preparation of acrolein by gas-phase partial oxidation under heterogeneous catalysis, a reaction gas starting mixture which contains propene and molecular oxygen in a molar C3H6:O2 ratio of >1 is reacted in reaction zones connected in series, at elevated temperatures, over solid-state catalysts, further molecular oxygen being added to the reaction gas mixture in the course of the partial oxidation.