Effect of depressing agents on the flotation of oxidized zinc minerals

Marabini, A.M.; Alesse, V.; Belardi, Girolamo; Spaziani, Elena

doi:10.1007/bf03403047

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2011

2024

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Cited by 3 publications

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“…Under this condition, collector consumption may be significantly reduced [11]. The excess sodium sulfide functions as a depressant for oxidized lead and zinc minerals because the adsorption of divalent sulfide ion on the surface of lead oxide minerals increases the negative charge, which prevents the adsorption of collector onto oxidized zinc mineral surfaces [3,10,11,13,15,16].…”

Section: Introductionmentioning

confidence: 97%

Study on the sulfidation behavior of smithsonite

Wen

Deng

et al. 2015

Applied Surface Science

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Section: Introductionmentioning

confidence: 97%

Study on the sulfidation behavior of smithsonite

Wen

Deng

et al. 2015

Applied Surface Science

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“…White lead was chosen for this investigation because it is one of the most commercially important lead oxide minerals. Considerable work has been carried out in the past to increase the recovery of lead oxide minerals by sulfidation applied prior to flotation [6][7][8][9][10][11][12][13]. Based on these and other studies, sodium sulfide is one of the most widely used alkali metal sulfides in the sulfidization-flotation process, its effectiveness is not entirely satisfactory, possibly due to the fact that the sulfidized layer detaches readily.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Sulfidation of White Lead with Elemental Sulfur

Wei

Song

et al. 2011

AMR

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Hydrothermal sulfidation of pure white lead with elemental sulfur has been studied in the present paper. The variables considered in the study were temperature, time, particle size and elemental sulfur fraction in the reacting mixture. Temperature and time were the most two important factors, with an increase in temperature and holding time the sulfidation extent of lead improved greatly and the constituent of products changed a lot. At temperatures above 140°C, PbS and PbSO4 were the only stable reaction products in the sulfidation of white lead. The experimental data indicated that under the hydrothermal conditions with a particle size of -58+48 μm and sulfur fraction in reacting mixture of 8% at 140 °C for 90 min, and 86% of lead sulfidation extent was achieved.

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