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:
Apr. 25, 1978
Filed:
Mar. 18, 1975
Applicant:
Inventors:
Raymond Edward Oliver, Johannesburg, ZA;
John Blunden Payne, London, EN;
Assignee:
Matthey Rustenburg Refiners (Pty) Ltd., Johannesburg, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
7511 / ; 75113 ; 75121 ; 423 44 ; 423 46 ; 423 88 ; 423 96 ; 423 97 ; 423108 ; 423149 ; 423493 ; 423494 ;
Abstract
This invention relates to refining platinum group metal concentrates and the separation therefrom of silver and of the majority of base metals with which they naturally occur. In more detail the process comprises the steps of: