Adsorption characteristics and floatability of cerussite with ethylxanthate in the presence of dissolved lead ion

Popov, S.R.; Vučinić, D.R.

doi:10.1016/0301-7516(92)90055-2

Cited by 8 publications

(1 citation statement)

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“…And some researchers considered that dissolved lead ions from the mineral lattice are beneficial for cerussite flotation, because lead ions in pulp solution may be hydrolyzed to form various lead-ion species and adsorbed or readsorbed on the mineral surface. Then surface ion-exchange reaction have been conducted between adsorbed hydrolysed lead ions and EX-, leading to the formation of nonstoichiometric lead xanthate, which provides improved conditions for better cerussite flotation [3][4][5]. Additionally, it is not doubt that the dissolution of cerussite is also detrimental, because it will increase the lead ions concentration in groundwater and soil.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Calculation of Dissolution Equilibrium for Cerussite in Pulp Solution

Feng

Wen

Cao

et al. 2014

AMR

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The dissolution equilibrium of cerussite within the entire pH range was theoretically calculated, which was based on coordination chemistry, thermodynamics and the mass balance principle of Pb2+ and CO32- in pulp solution. The calculation result showed that the total lead concentration (CPbT) of cerussite decreased significantly with increasing pH below 6 or so; however, at pH of about 10, a reverse trend of CPbT may be observed. Within the pH range from 6 to 10, the CPbT of cerussite remained close and presents a minimum value of around 10-4 mol/L. This paper may provide a theoretical basis for the dissolution process of cerussite and its conditioning stage before benefication by adopting flotation method.

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Section: Introductionmentioning

confidence: 99%