Patent · US Active

Template-free clathrasils and clathrasil membranes

US8574344B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

BASF SE

Inventors

Hartwig Voβ · Bischofswerda, DE
Jörg Therre · Worms, DE
Hermann Gies · Sprockhövel, DE
Bernd Marler · Bochum, DE

Key dates

Filing date	Sep 28, 2009
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Jun 30, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to template-free clathrasils whose framework comprises essentially SiO2, wherein the crystals of the clathrasils have the platelet-like morphology of a sheet silicate. The present invention further relates to a process for preparing these template-free clathrasils and also to their use as absorbent, as seed crystals for the synthesis of clathrasil membranes of the same zeolite type and in the form of dense layers which function as gas separation membranes having a molecular sieving action.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.