Recycling of Lead and Zinc from Gold and Silver Tailings

Xin Mu Zhou; Huan Peng; Zhi Jun Cen

doi:10.4028/www.scientific.net/AMR.455-456.840

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Recycling of Lead and Zinc from Gold and Silver...

Recycling of Lead and Zinc from Gold and Silver Tailings

Abstract:

The recycling conditions of lead and zinc from gold and silver tailings by wet processing are as follows: leaching in confined condition and liquid to solid ratio of 5, at 90 ∽ 950C, for 4h, using NaCl (300g / L), CaCl2 (105% of theoretical amount), the acidity is 130% theoretical amount and the granularity is 300 mesh size; sponge lead can be obtained by using reduced iron (110% of theoretical amount) at 75∽850C for 3h; iron and zinc can be separated from hydrochloric acid system by TBP and then used for the preparation of the corresponding products; all the mother liquor can be recycled and the consumption amount of raw materials is low because there is no need for additional sodium chloride in the cycling. This processing method has better economic and environmental benefits.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

840-844

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.840

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Online since:

January 2012

Authors:

Xin Mu Zhou, Huan Peng, Zhi Jun Cen

Keywords:

Leaching, Lead, Recycling

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References

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