Oxidative reactions using membranes that selectively conduct oxygen

US6730808B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stefan Bitterlich · Dirmstein, DE
• Hartwig Voss · Bischofswerda, DE
• Hartmut Hibst · Schriesheim, DE
• Andreas Tenten · Maikammer, DE
• Ingolf Voigt · Jena, DE
• Ute Pippardt · Bad Birnbach, DE

Key dates

• Filing date: May 23, 2002
• Grant date: May 4, 2004
• Expiry date: May 23, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Reactor membranes for used in oxidation reactions of hydrocarbons involving oxygen comprising a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the composition (Sr1-xCax)1-yAyMn1-zBzO3-&dgr;, whereA is Ba, Pb, Na, K, Y, an element of the lanthanide group or a combination thereof,B is Mg, Al, Ga, In, Sn, an element of the 3d or 4d period or a combination thereof,x is from 0.2 to 0.8,y is from 0 to 0.4,z is from 0 to 0.6, and&dgr; is a number, dependent on x, y and z, that renders the composition charge neutral.