Method for producing sheet-form electrolytic copper from halide solution
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United States of America Patent
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Issued Date -
Jun 26, 2008
app pub date -
May 21, 2007
filing date -
Dec 26, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a method for producing dense sheet-form electrolytic copper by electrowinning, the electrolyte contains a polyethylene glycol additive as a smoothening agent. In the prior art method, stirring is necessary. In an electrowinning method without stirring, the current concentrates on the edge portion of cathode 2. This current concentration is mitigated by means of conducting the electrolyzing current through a window 6b of a shielding plate 6 located in the vicinity of a cathode 2.
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