Method for producing sheet-form electrolytic copper from...

Details Method for producing sheet-form electrolytic copper from... Method for producing sheet-form electrolytic copper from...

C - Chemistry, Metallurgy

25

C

C25C 1/12 (2006.01) C25C 7/08 (2006.01)

Patent

CA 2592199

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.

Dans une méthode de production de cuivre électrolytique sous forme de feuille dense par extraction électrolytique, l'électrolyte contient un additif à base de polyéthylèneglycol comme agent de lissage. Dans les antériorités de la méthode, un brassage est requis. Dans une méthode par extraction électrolytique sans brassage, le courant se concentre à la partie périphérique de la cathode 2. Cette concentration de courant est atténuée en dirigeant le courant d'électrolyse au travers d'une fenêtre 6b d'une plaque de blindage 6 située à proximité de la cathode 2.

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