Patent · US Expired

Process for the production of zeolite A

US4339418A · kind A · utility

1Cited by

8References

8Claims

0Family size

Assignees

Degussa AG · DE
Henkel Kommanditgessel · DE

Inventor

Hans Strack · Alzenau, DE

Key dates

Filing date	Feb 24, 1981
Grant date	Jul 13, 1982
Priority date	—
Expiry date	Feb 24, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S423/24
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

There is produced crystalline zeolite powder of Type A having an average particle diameter of 7 to 8.5.mu. by introducing the components waterglass and alkali aluminate liquor under defined conditions simultaneously into a receiver containing water, stirring, subsequently first adding more alkali aluminate liquor and then more waterglass solution. The thus obtained crystalline zeolite powder is used as a phosphate substitute in washing agents.

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