Hydrophobic permeable composite, method for producing said composite and use of the same

US6383386B1 · kind B1 · utility

Assignee

• Creavis Gesellschaft fuer Technologie und Innovation mbH · DE

Inventors

• Christian Hying · Rhede, DE
• Gerhard Horpel · Nottuln, DE
• Bernd Penth · Lebach, DE

Key dates

• Filing date: Mar 10, 2000
• Grant date: May 7, 2002
• Expiry date: Mar 10, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2323/081
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a hydrophobic permeable composite, to a method for producing a hydrophobic permeable composite and to the use of said composite in various processes. Hydrophobic, permeable materials have been known for some time. Plastic materials especially, for example Gore-Tex®, but also materials consisting of other organic polymers are used whenever a material is required to be gas- and steam-permeable but not liquid-permeable. These materials have the disadvantage that they can only be used within a certain temperature range. The inventive composite is characterised by a higher temperature resistance since it consists mainly of inorganic materials. It is also relatively easy to produce since it can be obtained using the sol-gel technique. The inventive composite can be used as a membrane in the oxidation of aromatics, for example in the direct oxidation of benzene to phenol.