Beneficiation of Synthetic Iron Ore Kaolinite Mixture Using Selective Flocculation

Panda, Lopamudra; Biswal, S.K.; Tathavadkar, Vilas

doi:10.4236/jmmce.2010.911070

Cited by 14 publications

(11 citation statements)

References 9 publications

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“…Degraded wheat starch solution was used as the flocculant. The flocculant was prepared by mixing sodium hydroxide and starch with (2:1) ratio by maintaining temperature [11][12][13]. Analytical grade of sodium hexametaphosphate solution was used as dispersant.…”

Section: Reagentsmentioning

confidence: 99%

“…For the clear depiction of the effects of the operating parameters, a 2D graph was plotted. All reagents addition levels were fixed based on initial experimental experiences [11][12][13].…”

Section: Selective Flocculationmentioning

confidence: 99%

“…natural and synthetic reagents, etc. [5][6][7][8][9][10][11][12][13][14]. Very few attempts were taken using natural iron ore tailings.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the mechanism for selective flocculation process using natural iron ore tailings

Panda

Biswal

Venugopal

et al. 2020

Metall. Res. Technol.

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A huge quantity of iron ore tailings was generated every year from the iron ore washing plants during beneficiation. These discarded tailings were stored in the tailing pond. Safe storage and handling of these tailings are a major concern to the management. Due to depletion of high-grade ore, the government of India had reduced the cut-off grade from 55 to 45% because of the shortage of the iron ore reserves. Ultrafine particles present in the tailings cannot be treated effectively by the conventional methods due to particle size limitations. For Indian iron ore, associated gangue mineral alumina is the major source which causes problems in the blast furnace. Removal of alumina from the iron ore of ultrafine size is a hill task. A selective flocculation approach was employed to the iron ore tailings which contain 50.98% of Fe (T) with 8.86% of Al2O3 assay. It was observed that, when applying a selective flocculation process, the concentrate contains more than 63.48% Fe (%), 2.5% Al2O3 with 31.196% recovery (%). The mechanism was investigated using zeta potential analysis, FTIR analysis, etc.

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Section: Reagentsmentioning

confidence: 99%

“…For the clear depiction of the effects of the operating parameters, a 2D graph was plotted. All reagents addition levels were fixed based on initial experimental experiences [11][12][13].…”

Section: Selective Flocculationmentioning

confidence: 99%

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Investigation of the mechanism for selective flocculation process using natural iron ore tailings

Panda

Biswal

Venugopal

et al. 2020

Metall. Res. Technol.

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“…It is estimated that a typical iron ore slime contains 54 % iron and some other gangue minerals such as SiO 2 , Al 2 O 3, P 2 O 5 , TiO 2 , MgO, CaO. Out of these components SiO 2 (5 % w/w) and Al 2 O 3 (8 % w/w) are the major contaminants [2]. The presence of these contaminants in the huge tonnage volumes of slime poses several difficulties for effective recycling in the iron making process.…”

Section: Introductionmentioning

confidence: 99%

Microbial Variants from Iron Ore Slimes: Mineral Specificity and pH Tolerance

et al. 2015

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This paper describes the isolation of the native bacterial strains from the iron ore mines slime pond and its extremophilic characteristics. The two microbial isolates designated as CNIOS-1 and CNIOS-2 were grown in selective silicate broth at pH 7.0 and the organisms were tested for their selective adhesion on silicate and alumina minerals. The silicate bacteria with their exopolymers are very potent to grow over aluminosilicates. It was established that CNIOS-1 grew preferentially in the presence of silicate mineral compared to CNIOS-2 which grew in the presence of alumina. The organisms were tested for growth at various pH and trials were carried to define their efficacy for eventual applications to remove gangue minerals of silica and alumina from the raw material.

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“…Also, the selective flocculation process possesses the advantage of being eco-friendly and economical [13][14] . From the literature, it may be seen that polysaccharide based moiety has been widely used in the mineral processing industry as an effective flocculant and very specifically as selective flocculants [15][16] .…”

Section: Introductionmentioning

confidence: 99%

Development of a Statistical Model for Selective Flocculation of Iron Ore Slimes

Kumar

Mandre

2015

Journal of Dispersion Science and Technology

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In this study, an attempt has been made to identify the significant factors that affect the selective flocculation of iron ore slimes using full factorial design. For this purpose three factors pH, pulp density and the flocculant dose were investigated. A 2 3 factorial design was employed and the results were analysed statistically. The result indicated that the pH, pulp density and their interactions significantly affect the grade of the concentrate.Regression model using the design matrix showed that the predicted values are in well agreement with experimental values for grade and recovery. From the studies, it was possible to enhance the grade to 62.78% Fe with a recovery of 84.23% at pH 10, pulp density 1% and a flocculant dose of 0.03 mg/g.

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Beneficiation of Synthetic Iron Ore Kaolinite Mixture Using Selective Flocculation

Abstract: High demand of steel necessitates the use of low and lean grade iron ores by beneficiating them. However the fines, slimes and tailings generated in the process

Cited by 14 publications

References 9 publications

Investigation of the mechanism for selective flocculation process using natural iron ore tailings

Investigation of the mechanism for selective flocculation process using natural iron ore tailings

Microbial Variants from Iron Ore Slimes: Mineral Specificity and pH Tolerance

Development of a Statistical Model for Selective Flocculation of Iron Ore Slimes

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