Preparation of (meth)acrolein and/or (meth)acrylic acid

US7015354B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Jochen Petzoldt · Mannheim, DE
• Signe Unverricht · Mannheim, DE
• Heiko Arnold · Mannheim, DE
• Klaus Joachim Müller-Engel · Blankenloch, DE
• Martin Dieterle · Ludwigshafen, DE

Key dates

• Filing date: Aug 13, 2004
• Grant date: Mar 21, 2006
• Expiry date: Aug 13, 2024

Classification

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

Abstract

A process for preparing (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound over a fresh fixed catalyst bed, in which the process is started up at a reduced hourly space velocity of charging gas mixture on the fixed catalyst bed.