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. 02, 1984
Filed:
Feb. 14, 1983
Applicant:
Inventor:
Charles Arentzen, Tucson, AZ (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C21D / ;
U.S. Cl.
CPC ...
204292 ; 148-3 ; 420411 ; 420432 ; 420469 ; 420499 ; 420500 ; 204106 ;
Abstract
A process for the formation of copper anodes useful in the electrorefining of copper. Molten partially refined copper is subjected to controlled cooling such that the impurities coalesce into larger agglomerations and in the resulting solid partially refined copper are found segregated at the boundaries of the copper crystals. These larger agglomerations are less susceptible to dissolution in the electrolyte and to deposition or entrainment at the cathode. The process allows the use of a less refined copper starting material to achieve a comparable final cathode copper product.