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:
Sep. 13, 1988
Filed:
Feb. 10, 1987
Applicant:
Inventors:
Klaus-Peter Koller, Bad Soden am Taunus, DE;
Wilfried Schwab, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423181 ; 210638 ; 210665 ; 210669 ; 423184 ; 423499 ;
Abstract
Cesium chloride is recovered from used density gradient solutions by extraction of lipophilic and coloring components using a lipophilic solvent, subsequent extraction with a polar protic organic solvent, adding perchlorate ions to the extraction residue, and converting the precipitated cesium perchlorate into cesium chloride.