Inhibition Behaviour of a Mixed Additive upon Zinc Electrowinning from Sulphate Solutions Containing Germanium

Chun Xia Liu; Qing Feng Shen; Min Xiong; Yun Shan; Su Fang He; Yu Ping He

doi:10.4028/www.scientific.net/AMR.291-294.1479

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 291-294Inhibition Behaviour of a Mixed Additive upon Zinc...

Inhibition Behaviour of a Mixed Additive upon Zinc Electrowinning from Sulphate Solutions Containing Germanium

Abstract:

A detailed investigation has been carried out to determine the inhibition behavior of a mixed additive gelatin+thiourea+cresol (GTC) on zinc electrowinning from sulphate solutions containing germanium. The results indicate that zinc redissolution is inhibited because of germanium in existence, current efficiency is increased and surface morphology of cathode zinc is improved using proper GTC in the electrolyte. Cathode polarization curves were traced and analyzed to indicate that additive GTC may inhibit the depolarization and stimulating hydrogen evolution effects of germanium on zinc deposition.

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Periodical:

Advanced Materials Research (Volumes 291-294)

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1479-1483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.291-294.1479

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July 2011

Authors:

Chun Xia Liu, Qing Feng Shen, Min Xiong, Yun Shan, Su Fang He, Yu Ping He

Keywords:

A Mixed Additive, Germanium, Zinc Electrowinning

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