Flexible and porous membranes and adsorbents, and method for the production thereof

US7014681B2 · kind B2 · utility

Assignee

• Blue Membranes GmbH · DE

Inventors

• Andreas Noack · Friedrichstadt, DE
• Jurgen Kunstmann · Bad Soden, DE
• Gerald Frank · Dreieich, DE
• Christian Gnabs
• Norman Bischofberger · Guntersblum, DE
• Andreas Ban · Darmstadt, DE

Key dates

• Filing date: Oct 19, 2001
• Grant date: Mar 21, 2006
• Expiry date: Feb 19, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/05
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing flexible and porous adsorbents based on oxidic and/or non-oxidic ceramic material containing carbon. The inventive method is characterized by the following steps: (a) producing a flat base matrix whose constituents are held together essentially by hydrogen bridge bonds, on a machine suited for producing paper; (b) applying and/or impregnating the surface of the base matrix, on one or both sides, with polymeric addition agents; (c) treating the base matrix under pyrolysis conditions at an increased temperature in an atmosphere containing essentially no oxygen. The invention also relates to membranes that can be produced according to the aforementioned method, to flexible material that can be produced by using these membranes, and to their use for separating and purifying fluids.