Theoretical Calculation of Dissolution Equilibrium for Galena in Pulp Solution

Qi Cheng Feng; Shu Ming Wen; Dan Liu; Zhiwen Ye; Wen Juan Zhao

doi:10.4028/www.scientific.net/AMR.881-883.1683

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Theoretical Calculation of Dissolution Equilibrium...

Theoretical Calculation of Dissolution Equilibrium for Galena in Pulp Solution

Abstract:

The dissolution equilibrium of galena within the entire pH range was theoretically calculated, which was based on coordination chemistry, thermodynamics and the mass balance principle of Pb²⁺ and S^2- in pulp solution. The calculation result showed that the total lead concentration (C_PbT) of galena decreased significantly with increasing pH below 7 or so; however, at pH of about 10, a reverse trend of C_PbT may be observed. Within the pH range from 7 to 10, the C_PbT of galena remained close and presents a minimum value of around 10^-10 mol/L. This paper may provide a theoretical basis for the dissolution process of galena and its conditioning stage before benefication by adopting flotation method.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

1683-1686

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.1683

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Online since:

January 2014

Authors:

Qi Cheng Feng, Shu Ming Wen, Dan Liu, Zhiwen Ye, Wen Juan Zhao

Keywords:

Dissolution Equilibrium, Flotation, Galena, Pulp Solution, Theoretical Calculation

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