Patent · US Active

Silicate producing method

US8372378B2 · kind B2 · utility

4Cited by

6References

20Claims

0Family size

Assignees

BASF SE
Rubitec AG · CH

Inventors

Ulrich Mueller · Hamburg, DE
Roger Ruetz · Mannheim, DE
Hermann Gies · Sprockhövel, DE

Key dates

Filing date	Apr 8, 2011
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Apr 8, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/582
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).

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