Method for producing methacrylic acid from isobutane

US6933407B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Silke Berndt · Mannheim, DE
• Klaus Joachim Müller-Engel · Blankenloch, DE
• Gotz-Peter Schindler · Mannheim, DE
• Frank Rosowski · Mannheim, DE
• Jochen Petzoldt · Mannheim, DE

Key dates

• Filing date: Jun 28, 2002
• Grant date: Aug 23, 2005
• Expiry date: Jun 28, 2022

Classification

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

Abstract

A process prepares methacrylic acid from isobutane by subjecting isobutane to a partial catalytic dehydrogenation in the gas phase and charging an oxidation zone with the isobutenic product gas mixture after the components other than isobutane and isobutene have been substantially removed from the product gas mixture. The oxygen required to charge the oxidation zone is introduced accompanied by nitrogen.