Iron ore slimes beneficiation using optimised hydrocyclone operation

Padhi, Mandakini; Vakamalla, Teja Reddy; Mangadoddy, Narasimha

doi:10.1016/j.chemosphere.2022.134513

Cited by 9 publications

(5 citation statements)

References 28 publications

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“…However the same effect was not studied for BHQ ore. For sample B grade of Fe(%), the hydrocyclone underflow nearly remains constant with increase in pressure, but weight(%) yield first increases and then slightly declines with pressure. These results slightly deviate from the previously published research articles (17,22) . For overflow particle size (60 percent passing), it increases modestly in https://www.indjst.org/ the begining before falling off suddenly.…”

Section: Effect Of Pressurecontrasting

confidence: 99%

Section: Gravity Separation Study With and Without Desliming For Both...mentioning

confidence: 99%

“…Nanda et el (13) studied the beneficiation response of BHQ iron ore, however they fail to explain the process parameters related to hydrocyclone influencing the desliming process. The hydrocyclone process parameters for iron ore slime beneficiation were recently researched by the researchers Padhi et al (17) , although they only concentrated on hydrocyclone design and flow parameters but they were unable to answer the effect of desliming for the concentration of ores like BHQ and the concentration efficiency. The features of Iron ore slimes and their influence on the flotation process were examined by Lima et al (18) & it was observed that the presence of ultrafine particles (less than 10 µm) significantly hampers the flotation process response.…”

Section: Introductionmentioning

confidence: 99%

“…The concentration efficiency of gravity separation process for sample B increases from 30.75 to 36.04 with desliming. The researchers Padhi et al(17) , did not study the effect of desliming on gravity concentration of iron ores. This study concludes that desliming considerably improves concentration efficiency.After observation of all the results, the gravity separation study was carried out with desliming for sample A and sample B under similar condition as that of above.…”

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Effect of Hydrocyclone Process Parameters on Desliming of Low-Grade Indian Iron Ores with Respect to their Optimum Utilization

Nandanwar,

Pani

2023

IJST

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Objectives: To ascertain how desliming affects concentration efficiency of low-grade Indian iron ore and how hydrocyclone process parameters affect desliming effectiveness of low-grade iron ores for their optimum utilization. Methods: Low grade Indian iron ores viz high aluminous type slime (sample A) and siliceous type BHQ (sample B) assaying 56.3% Fe, 7.64% SiO 2 , 5.14% Al 2 O 3, 5.34% LOIand 40.5% Fe, 40.6% SiO 2 , 0.7% Al 2 O 3 , 0.5% LOI are used for this study. The samples undergo beneficiation study by employing the techniques like desliming followed by gravity and magnetic separation for the recovery of iron values. Findings: Two ores appear to behave differently depending on the process parameters. Desliming followed by gravity separation of the ores increases the separation efficiency of the concentration process for both sample A and sample B. Improved iron recovery and grade observed in case of desliming-cum-gravity separation than that of direct gravity separation. The particle size and mineral are dominating the separation response in case of iron ore slime sample A, while in BHQ sample B the dominating factor is particle size only. The grade of deslimed product (hydrocyclone underflow) increased in case of sample A. The grade of deslimed product did not increase in sample B but the particle sizes are more segregated. sample A can be processed to produce an iron ore concentrate with a 65% Fe content and weight(%) recovery of 42 by adopting desliming followed by gravity separation techniques. An iron ore concentrates of 64% Fe with 25 weight (%) recovery can also be obtained from sample B by adopting the same. Novelty & Application: Present investigation establishes the response of different low grade ores in terms of separation with and without desliming. Desliming before concentration will be an easier decision resulting in efficient separation.

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Section: Effect Of Pressurecontrasting

confidence: 99%

Section: Gravity Separation Study With and Without Desliming For Both...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of Hydrocyclone Process Parameters on Desliming of Low-Grade Indian Iron Ores with Respect to their Optimum Utilization

Nandanwar,

Pani

2023

IJST

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“…da utilized hydrocyclone to recover rare earth oxide (REO) from tailings, and the concentration of REO in overflow products was about 79.5% higher than that in feed. Padhi et al (2022Padhi et al ( , 2021 showed that the classification performance of hydrocyclone for feed mixtures with two dissimilar densities was equivalent to that of pure components, and the hydrocyclone was implemented to separate multi-component iron tailings. The contents of iron and alumina in the products in order were reported to be 61% and 2.77%.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the classification and recovery process of fine mineral particles via a newly developed volute feed hydrocyclone

Wei

et al. 2023

Environ Sci Pollut Res

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Ore resources in the mining process form a large number of unmanageable tailings, mostly inhalable fine mineral particles, into the environment will cause serious pollution, and recycling is a precious resource. The cyclone classification provides the possibility for the recovery and exploitation of fine particles, but the recovery and utilization rate of conventional cyclone separation is seriously low, and the performance urgently should be optimized. In the present study, a new type of volute feed was proposed to strengthen the classification and recovery process of fine mineral particles. Combined with numerical simulation and experimental research, the effects of various structural parameters and operating parameters on the flow field distribution, particle motion, and classification performance were systematically examined. The obtained results reveal that the new volute feed structure can effectively reduce the internal turbulence and improve the flow field stability and particle classification efficiency. Compared with the traditional hydrocyclone, the classification efficiency of fine particles with new feed structure increases by 10%-18%. Increasing underflow diameter and feed pressure and reducing overflow diameter and feed concentration are also beneficial to lessening classification particle size and enhancing classification performance. The currently achieved outcomes can provide valuable guidelines for further development of novel hydrocyclones.

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Process Simulation with Tertiary Cyclone for Kaolinite Removal from Amazonian Bauxite

Reis¹,

Duarte²,

Neves³

et al. 2023

The Minerals, Metals &Amp; Materials Series

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Iron ore slimes beneficiation using optimised hydrocyclone operation

Cited by 9 publications

References 28 publications

Effect of Hydrocyclone Process Parameters on Desliming of Low-Grade Indian Iron Ores with Respect to their Optimum Utilization

Effect of Hydrocyclone Process Parameters on Desliming of Low-Grade Indian Iron Ores with Respect to their Optimum Utilization

Enhancement of the classification and recovery process of fine mineral particles via a newly developed volute feed hydrocyclone

Process Simulation with Tertiary Cyclone for Kaolinite Removal from Amazonian Bauxite

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