The Improvement Effect of Dispersant in Fluorite Flotation: Determination by the Analysis of XRD and FESEM-EDX

Li, Y. J.; Sun, Fangfang; Zhou, Yang; Zeng, Lu

doi:10.1155/2015/859365

Cited by 7 publications

(4 citation statements)

References 17 publications

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“…The idea using CMC as depressant has an advantage of elimination of the heterocoagulation considering its flocculation effect between calcite and fluorite particles, in order to improve the beneficiation of the fluorite ore by froth flotation. As mentioned previously the used of different reagent as disperser and depressor was succesful for the authors (Li, 2015), but a different effect was found in the Milldam sample.…”

Section: Effect Of Cuso 4 For Removal Of Phosphatesmentioning

confidence: 69%

“…The fully liberated lead in the fluorspar concentrate can be reduced improving the selectivity and recovery in the PbO flotation stage either (i) adding a promoter (3418A) in the PbS flotation cell by decreasing reagent's dosage (to 100 g/t) and pH (to 9) or (ii) decreasing reagent's dosage (to 100 g/t) and pH (9). Batch flotation test at current conditions in the plant recovered 2.33% Pb in the lead oxide flotation whereas at option (i) recovered 18.03% Pb and at option (ii) recovered 15.71% Pb.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation

Escobar¹,

Seltmann²,

Broadbent

et al. 2021

Ores and metals

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British Fluorspar Ltd (BFL) operates a lead-fluorite-barite deposit located in the Peak Lake District (Derbyshire, UK) with fluorspar as the main product and lead and barite as by-products. Recent analysis of the CaF2 concentrate showed high values of deleterious elements such as Pb, P, S and As, which affect the quality of the product. Grindability studies showed an overgrinding of material prior to the flotation stage with high liberation of P2O5 mainly to the fluorspar concentrate. Data obtained from bath flotation test indicated an improvement of lead recovery from 2.33 % to 15.03 %, decreasing Na2S to 100g/t and pH to 9 in the lead oxide circuit and a depression of P2O5 in the fluorspar flotation stage from 87 % to 91 % recovered in the tailings using 200 g/t of CaCl-CuSO4 as “depressant” of phosphates related minerals

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Section: Effect Of Cuso 4 For Removal Of Phosphatesmentioning

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation

Escobar¹,

Seltmann²,

Broadbent

et al. 2021

Ores and metals

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show abstract

“…Separation efficiency of flotation test performed at 30% solids was found to be 61.38 while it was measured to 58.92 at 35% solids. This behavior may be due to fact that higher pulp densities produce thick froth layer which is difficult to wash in order to drain out the entrapped gangue particles (Li et al 2015). Accordingly, in the later experiments, the pulp density was set at 30% solids.…”

Section: Effect Of Pulp Densitymentioning

confidence: 99%

Potential of low-grade fluorite ore of Landi Kotal, Khyber Pakhtunkhwa Province, Pakistan

Bhatti

Zafar

Mehmood

et al. 2023

Bangladesh J. Sci. Ind. Res.

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This paper describes the results of a beneficiation study conducted on low-grade fluorite ore. The study was aimed at the development of a suitable beneficiation process to produce chemical grade fluorite concentrate. The representative sample of the ore was up-graded by leaching and flotation process. The important parameters of froth flotation process were optimized to obtain highest grade and recovery of fluorite concentrate. A single-factor variation method was applied to get the optimum conditions of the process. The rougher concentrate was reground to liberate fine locked fluorite particles and two cleaning flotation were employed in close circuit to achieve higher grade concentrate. A process flowsheet was designed in the light of these tests. After optimization of process parameters, the fluorite ore containing 62.24% CaF2 could be upgraded to a concentrate assaying 97.55% CaF2 with an overall recovery of 92.73%. The prepared fluorite concentrate meets the specifications of chemical grade and is suitable for production of fluoride based chemicals. Bangladesh J. Sci. Ind. Res. 58(2), 107-118, 2023

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“…Fluorite (CaF 2 ), the most important fluorine-containing mineral and the major source of fluorine in the industry, has been considered to be a valuable strategic resource [1,2]. It has been widely used in the manufacture of glass, steelmaking, the production of hydrofluoric acid, pottery, enamel, drugs and catalyst [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The Contribution of Long-Terms Static Interactions Between Minerals and Flotation Reagents for the Separation of Fluorite and Calcite

Huang

Zeng

et al. 2019

Minerals

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The influences of long-term static interaction between flotation reagents and minerals on mineral surface properties and their flotation behaviors were investigated in this work. Single mineral results showed that when the static interaction time between flotation reagents and minerals increased from 0 to 8 days, there were no significant differences in the recovery of fluorite (ranging from 77.50% to 74.50%), while the recovery of calcite dramatically decreased from 97.17% to 41.13%. The collector adsorption results indicated that after the long-term static interaction between the collector and minerals, adsorption and desorption of collector on the minerals occurred, and the adsorption amount of collector on fluorite and calcite varied from 0.396 mg/g to 0.421 mg/g, and from 0.444 mg/g to 0.404 mg/g, respectively. The contact angles of fluorite and calcite decreased from 134.3° and 105.0° for 0 days to 109.7° and 52.5° for 8 days, respectively, which demonstrated that the fluorite had a higher hydrophobicity than that of calcite after 8 days of static interaction between the minerals and collector. The Fourier transform infrared spectroscopy (FTIR) analysis showed that there were chemisorptions between the collector and the surfaces of the fluorite and calcite. Meanwhile, the X-ray photoelectron spectroscopy (XPS) results further elucidated that the amount of C=O from the oleic acid (OA) molecule for calcite treated for 8 days was less than for that treated for 0 days. In addition, the flotation results of the tailings from Jiangxi containing fluorite and calcite, indicated that the grade and recovery of fluorite increased from 87.18% and 40.99% for 0 days to 93.00% and 46.01% for 8 days, respectively, indicating that the separation of fluorite from calcite could be achieved via increasing the long-term static interaction between the flotation reagents and minerals.

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The Improvement Effect of Dispersant in Fluorite Flotation: Determination by the Analysis of XRD and FESEM-EDX

Cited by 7 publications

References 17 publications

Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation

Upgrading of a lead-fluorspar ore by flotation: effects of ore characteristics and kinetics of flotation

Potential of low-grade fluorite ore of Landi Kotal, Khyber Pakhtunkhwa Province, Pakistan

The Contribution of Long-Terms Static Interactions Between Minerals and Flotation Reagents for the Separation of Fluorite and Calcite

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