ELECTROWINNING METHOD FOR NON-FERROUS METAL

WIPO Patent Application WO/2013/031790

A1

Provided is a method for electrowinning a non-ferrous metal, such as zinc or copper, from an electrolytic solution that includes a sulfate of a non-ferrous metal such as zinc sulfate or copper sulfate, in a process using an anode that includes lead. In the electrowinning method for non-ferrous metal, electrowinning of the non-ferrous metal is performed using an anode on which a height differential of at least 100 µm, preferably at least 300 µm, has been formed on the surface thereof which is immersed in the electrolytic solution, whereby electrowinning of non-ferrous metals such as zinc and copper with minimal leaden appearance can be accomplished inexpensively, and electrowinning of non-ferrous metals such as zinc and copper with minimal leaden appearance can be accomplished consistently over an indefinite period of time.

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SATO RIE (JP)
MATSUURA DAI (JP)
SANO KAZUSHI (JP)
AICHI TARO (JP)

PCT/JP2012/071747

March 07, 2013

August 22, 2012

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DOWA METALS & MINING CO LTD (JP)
SATO RIE (JP)
MATSUURA DAI (JP)
SANO KAZUSHI (JP)
AICHI TARO (JP)

C25C1/16; C25C1/12; C25C7/02; C25C7/06

JP2003534635A	2003-11-18
JP2002535486A	2002-10-22
JPH0860391A	1996-03-05
JP2011117053A	2011-06-16

OKAWA, KOICHI (JP)
Koichi Okawa (JP)

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