The Effect of Nickel in Zinc Electrowinning

Gang Xie; Zhi Dong Liu; Xiao Hua Yu; Ying Lu

doi:10.4028/www.scientific.net/AMR.396-398.106

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398The Effect of Nickel in Zinc Electrowinning

The Effect of Nickel in Zinc Electrowinning

Abstract:

The effects of nickel ions on the cathode polarization process, kinetics equation and parameters in zinc electrowinning have been investigated in this paper. The results of the experiments show that when [Ni2+] ≤ 4 mg•L-1, the current density increases with increasing concentration of Ni2+ and limiting current of the passive point reach maximum, which indicates that the depolarization function of nickel in zinc electrowinning. And when [Ni2+] ≥ 4 mg•L-1, owing to the polarization function of nickel, electrowinning enters into stationary passive range at first and then enters into precipitation range because of the polarization function of nickel.

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Advanced Materials Research (Volumes 396-398)

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106-109

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https://doi.org/10.4028/www.scientific.net/AMR.396-398.106

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Online since:

November 2011

Authors:

Gang Xie, Zhi Dong Liu, Xiao Hua Yu, Ying Lu

Keywords:

Cathode Polarization, Kinetic Equation, Nickel, Zinc Electrowinning

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