Patent · US Expired

Process of preparing cesium salts from cesium aluminum alum

US5605669A · kind A · utility

3Cited by

4References

7Claims

0Family size

Assignee

Metallgesellschaft AG · DE

Inventors

Hartmut Hofmann · Frankfurt am Main, DE
Klaus K obele · Dietzenbach, DE
Horst Prinz · Friedberg, DE
Bernd Phillipp · Langelsheim, DE
Gerd J. Harms · Goslar, DE
Alexander Schiedt · Seesen, DE
Ulrike Hecktor · Friedberg, DE

Key dates

Filing date	Nov 24, 1995
Grant date	Feb 25, 1997
Priority date	—
Expiry date	Nov 24, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01D17/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to the preparation of cesium salts from cesium-aluminum-alum in a process in which the cesium-aluminum-alum is reacted in a single vessel in the presence of water with calcium hydroxide in an amount which is equimolar to the amount of aluminum and with a readily water-soluble calcium salt in an amount which is equimolar to the amount of cesium and the precipitated aluminum hydroxide and the precipitated calcium sulfate are separated by filtration or centrifugation.

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