The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2010
Filed:
Mar. 24, 2006
Bernd Hirthe, Tonisvorst, DE;
Bernd Proft, Neukirchen-Vluyn, DE;
Jochen Winkler, Rheurdt, DE;
Udo Blumenthal, Muhlhein/Ruhr, DE;
Gerhard Fink, Muhlheim/Ruhr, DE;
Klaus Hauschild, Duisburg, DE;
Bernd Hirthe, Tonisvorst, DE;
Bernd Proft, Neukirchen-Vluyn, DE;
Jochen Winkler, Rheurdt, DE;
Udo Blumenthal, Muhlhein/Ruhr, DE;
Gerhard Fink, Muhlheim/Ruhr, DE;
Klaus Hauschild, Duisburg, DE;
Sachtleben Chomie GmbH, Duisburg, DE;
Studiengesellschaft Kohle MBM, Mulheim An De Ruhr, DE;
Abstract
The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.