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:
Aug. 02, 1977
Filed:
Feb. 27, 1976
Applicant:
Inventor:
Rodney L LeRoy, Pointe Claire, CA;
Assignee:
Noranda Mines Limited, Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ; C25C / ; C25C / ;
U.S. Cl.
CPC ...
2041 / ; 204106 ; 204222 ;
Abstract
A method for the operation of a fluidized bed electrochemical reactor at a substantially constant current density for a prolonged period of time is disclosed. The method consists of electrowinning semi-continuously or continuously for a number of periods of predetermined duration. During each period the electrowon weight plus some fraction of the weight of powder is withdrawn from the bed and a predetermined amount of the starting powder is added to maintain the total surface area of the fluidized bed electrode approximately constant.