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:
Dec. 16, 2008
Filed:
Jul. 23, 2004
Kenji Haiki, Tokyo, JP;
Kazuhiko Motoba, Ibaraki, JP;
Hiroshi Oda, Ibaraki, JP;
Nippon Mining & Metals Co., Ltd., Tokyo, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
In a metal-winning method, copper ore or copper-ore concentrates is effectively hydraulically leached in a chloride leach liquor and the resultant leached liquor is diaphragm-electrolyzed. A chloride electrolyte containing Brions and the leached metals is subjected to a diaphragm-electrolysis in an electrolytic cell comprising an anode compartment () and a cathode compartment (). A portion of the electrolyte in the anode compartment () is withdrawn from below an anode () of the anode compartment () and is returned to the leaching step so as to increase the oxidation potential of the chloride leach liquor.