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:
May. 25, 1982
Filed:
Nov. 17, 1980
Applicant:
Inventors:
Kenneth J Shanton, Sonning Common, GB;
Richard A Grant, Usbridge, GB;
Assignee:
Matthey Rustenburg Refiners (Pty) Limited, Johannesburg, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 22 ; 7510 / ;
Abstract
The separation and purification of palladium present in aqueous solutions which also contain other platinum group metals is accomplished by a process which involves contacting an acidic aqueous solution containing the palladium and other platinum group metals with an organic phase containing an oxime extractant and an anionic phase transfer material substantially soluble in the organic phase and substantially insoluble in the aqueous solution, and removing from contact with the acidic solution the organic phase containing substantially all of the palladium.