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:
Mar. 09, 1999
Filed:
Jun. 12, 1997
Applicant:
Inventors:
Richard A Grant, Caversham, GB;
Yvonne Taylor, Maidenhead, GB;
Assignee:
Matthey Rustenburg Refiners (PTY) Limited, Transvaal, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
423 22 ; 210635 ;
Abstract
This invention relates to a method of interseparation of platinum group metals, and in particular to the use of chromatographic media for interseparation of the PGMs from a reduced feed which are eluted in the order of iridium, rhodium and ruthenium together, followed by palladium, platinum and osmium.