Study on Recovering Zinc from Gossan

Jin Lin Yang; Shao Jian Ma; Wei Mo; Jin Peng Feng; Xiu Juan Su; Gui Fang Wang

doi:10.4028/www.scientific.net/AMR.454.329

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 454Study on Recovering Zinc from Gossan

Study on Recovering Zinc from Gossan

Abstract:

In this paper, the conventional physical separation method such as flotation, gravity separation, magnetic separation, alkaline leaching and sulfuric acid leaching were studied. The effects of grinding fineness, amount of agent, magnetic intensity, roasting temperature, roasting time, the leaching agent and leaching time on the leaching of zinc were investigated, respectively. The results show that the leaching rate of zinc is below 50% in the conventional alkaline leaching, and the leaching rate of zinc is below 85% and the leaching rate of iron is above 35% in sulfuric acid leaching. Compared with XRD pattern of the raw ore, the different diffraction peaks of smithsonite is off in alkaline leaching products. In sulfuric acid leaching, the different diffraction peaks of smithsonite are off in the leaching products when sulfuric acid concentration is less than 60 g/L. After 60 g/L, the different diffraction peaks of smithsonite and siderite are off in the leaching products.

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Periodical:

Advanced Materials Research (Volume 454)

Pages:

329-332

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.454.329

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Online since:

January 2012

Authors:

Jin Lin Yang, Shao Jian Ma, Wei Mo, Jin Peng Feng, Xiu Juan Su, Gui Fang Wang

Keywords:

Flotation, Gossan, Gravity Separation, Leaching, Magnetic Separation, Zinc

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