Research on the Role of Pre-Oxidation in the Separation of Cu-Pb in the Presence of Potassium Dichromate

Bao Lin Ke; Jian Hua Chen

doi:10.4028/www.scientific.net/AMR.402.526

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 402Research on the Role of Pre-Oxidation in the...

Research on the Role of Pre-Oxidation in the Separation of Cu-Pb in the Presence of Potassium Dichromate

Abstract:

It is the most effective method to use potassium dichromate to separate copper from lead when galena is oxidized. However, it needs long time to oxidize galena by potassium dichromate. The efficiency of five oxidants on potassium dichromate depressing ability to galena have been studied completely in this paper, and results suggest that separation of Cu-Pb can be carried out effectively in short time in the presence of potassium dichromate when galena is pre-oxidized by oxidants. Sodium hypochlorite is the best oxidant, and after the interaction of 15 min., the grade and the recovery of copper concentrate are 24.02% and 81.93% respectively, and the grade and the recovery of lead concentrate are 17.88% and 84.98% respectively.

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Periodical:

Advanced Materials Research (Volume 402)

Pages:

526-528

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.402.526

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Online since:

November 2011

Authors:

Bao Lin Ke, Jian Hua Chen

Keywords:

Dichromate, Flotation, Oxidant, Pre-Oxidation, Separation of Cu-Pb

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References

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