Process of generating o-xylene-air mixtures for the production of phthalic anhydride

US6984289B2 · kind B2 · utility

Assignee

• MG Technologies LLC · DE

Inventors

• Helmuth Domes · Obertshausen, DE
• Thomas Gutermuth · Maintal, DE
• Herbert Feisel · Hofheim, DE
• Lutz Urban · Schmitten, DE

Key dates

• Filing date: Jun 25, 2002
• Grant date: Jan 10, 2006
• Expiry date: Aug 22, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D307/89
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for generating a homogeneous gas mixture of o-xylene and air for the production of phthalic anhydride wherein o-xylene is completely evaporated in the absence of oxygen, superheated and then mixed with air and supplied to a phthalic anhydride reactor.