Patent · US Expired

Ion-exchanging aluminum silicate with hydrophilic surfaces

US4040972A · kind A · utility

11Cited by

2References

20Claims

0Family size

Assignees

Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler
Henkel & Cie

Inventors

Wolfgang Roebke
Dieter Kneitel · Rodenbach, DE
Erfried Parr

Key dates

Filing date	Mar 5, 1976
Grant date	Aug 9, 1977
Priority date	—
Expiry date	Mar 5, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B33/2815
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

There are provided alkali aluminum silicates having a hydrophilic surface. They are prepared by mixing a crystalline, ion-exchanging alkali aluminum silicate with a hydrophilic material, preferably ortho-phosphoric acid or an alkali ortho phosphate.

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