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:
Oct. 07, 1986
Filed:
Feb. 09, 1985
Applicant:
Inventors:
John A Thomas, Salvador, BR;
Norman C Nissen, Oakville, CA;
Malcolm C Bell, Oakville, CA;
Alexander Illis, Mississauga, CA;
Assignee:
Inco Limited, Toronto, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 9 / ; 204108 ; 204109 ; 75 99 ; 7510 / ; 75108 ; 75109 ; 75112 ; 75114 ; 75115 ; 75117 ; 7511 / ; 75119 ; 75120 ; 75121 ; 423 22 ; 423 34 ; 423 38 ; 423 41 ; 423 42 ; 423 45 ; 423 92 ; 423 98 ; 423 87 ; 423140 ; 423150 ; 423508 ; 423509 ; 423510 ;
Abstract
A hydrometallurgical process is provided for separating heavy metal nuisance elements such as As, Sb, Bi, Sn and Pb from precious metals and/or selenium. The process can be used as a step in an overall hydrometallurgical process for treating refinery residues such as anode slimes for the separation and recovery of valuable metal values.