Title:
第一鉄/第二鉄アノード反応を使用して銅を電気採取するための方法および装置
Document Type and Number:
Japanese Patent JP2007500790
Kind Code:
A
Abstract:
The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous/ferric anode reaction. In general, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the efficient and cost-effective operation of a copper electrowinning system employing the ferrous/ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A/m2), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advantageous.
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Inventors:
Sandoval, Scott Pea.
Robinson, Timothy G.
Cook, Paul Earl.
Robinson, Timothy G.
Cook, Paul Earl.
Application Number:
JP2006521998A
Publication Date:
January 18, 2007
Filing Date:
July 26, 2004
Export Citation:
Assignee:
Phelps Dodge Corporation
International Classes:
C25C1/12; C25B9/17; C25C7/06
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita