Process for preparing a composite electrolyte based on BIMEVOX and the use of said compound in separating oxygen from a gas mixture

US6207038A · kind A · utility

Assignee

• L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude · FR

Inventors

• César Marlu Steil · Grenoble, FR
• Jacques Fouletier · Grenoble, FR
• Michel Kleitz · Grenoble, FR
• Gilles Lagrange · Les Ulis, FR
• Pascal Del Gallo · Étampes, FR
• Gaetan Mairesse · Lambersart, FR
• Jean-Claude Boivin · Les Ulis, FR

Key dates

• Filing date: Jul 2, 1999
• Grant date: Mar 27, 2001
• Expiry date: Jul 2, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for preparing a solid composite electrolyte comprising at least one compound of the BIMEVOX family is provided. The process comprises at least one step of preparing a mixture of one or more compounds of the BIMEVOX family with one or more chemically inert compounds, at least one step of compacting the mixture obtained, and at least one sintering step during which the temperature reached, over a nonzero time interval, has a value greater than the optimum sintering temperature for the compound of the BIMEVOX family.