Characterisation-Assisted Reduction Roasting of BHJ, West Singhbhum, Jharkhand, India

Das, Sanjeev Kumar; Prasad, Ranjit; Singh, Rajendra Prasad

doi:10.1007/s12666-017-1270-z

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…Many researchers from time to time investigated on different aspects Mineral characterization and beneficiation aspects of Banded iron formations (BIFs) and associated iron ores of India (9)(10)(11)(12)(13) . However, very few of the researchers (9,(12)(13)(14) were made an integral approach for the development of beneficiation strategy with reference to mineral characterization.…”

Section: General Geology Of Study Areamentioning

confidence: 99%

Recovery of Iron values through conventional beneficiation techniques from Banded Hematite Jasper of Eastern India with special reference to mineralogical and chemical characterization

Nanda¹,

Pani²,

Beura³

2020

IJST

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Section: General Geology Of Study Areamentioning

confidence: 99%

Recovery of Iron values through conventional beneficiation techniques from Banded Hematite Jasper of Eastern India with special reference to mineralogical and chemical characterization

Nanda¹,

Pani²,

Beura³

2020

IJST

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“…In recent years, magnetization roasting technology has attracted a lot of attention in the field of utilization of LGRIO (Sun et al, 2019;Das and Rath, 2020;Das et al, 2018). It can convert weakly magnetic minerals into strongly magnetic minerals and thus improving the separability of LGRIO (Sun et al, 2020;Yu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Properties of flash roasted products from low-grade refractory iron tailings and improvement method for their magnetic separation index

He¹,

Lu²,

Luukkanen³

et al. 2022

Physicochem. Probl. Miner. Process.

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The properties of flash-roasted products from low-grade refractory iron tailings (IGRIT) and the improved method for their magnetic separation index were investigated by the MLA, XRD, iron phase analysis, and magnetic separation test. The results show the siderite and hematite in the IGRIT have been converted to magnetic iron after the flash roasting treatment with a time of 3-5 s; magnetic iron in roasted products has a monomeric dissociation of 37.20%, and a 75−100% exposed area of contiguous bodies as rich intergrowth was 29.83%, and that a 32.97 poor intergrowth; moreover, magnetic iron is mainly associated with muscovite and quartz. It is also found that the regrinding-magnetic separation (1500 Oe) treatment of the middling was beneficial to obtain more qualified iron concentrate products. Therefore, roasted products magnetic separation process in the absence/ presence of the middling regrinding-magnetic separation treatment obtains an iron concentrate with 60.10%/ 60.12% iron grade and 72.04%/81.13% iron recovery. The iron concentrate from the magnetic separation process with middling regrinding-magnetic separation can have a 9% higher recovery than the process without middling regrinding-magnetic separation. The work is significant for helping to improve the utilization of IGRIT.

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“…The process suffers due to an associated energy penalty but the advantages include magnetic separation and reduced grinding costs due to the increased friability of the roasted ore (Iwasaki and Prasad 1989; Makhija et al 2013). The reduction of low-grade iron ores leads to an iron enrichment of 10–15% with 50–70%, Fe recovery (Sahoo et al 2014; Das et al 2018; Ray et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Investigation of microwave reduction of low-grade banded iron ores

Rayapudi

Dhawan

2019

Mineral Processing and Extractive Metallurgy

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The present work investigated microwave carbothermic reduction of three low-grade banded iron ores (Fe ̴ 34%). The iron ores were size reduced and subjected to microwave reduction with charcoal. Ferrite formation was observed within 10 min at ≤8 wt% charcoal dosage at a microwave power of 900 W. It was found that a small fraction of the irradiated ore-charcoal mixture rapidly melted to produce ferrite balls. Wustite, ferrite, cristobalite and fayalite formed at ≥7 wt% charcoal. During microwave treatment, the paramagnetic hematite phase converted to a ferromagnetic magnetite phase, leading to enhanced magnetic susceptibility. Optical micrograph of the ferrite clearly revealed the presence of retained austenitic and martensitic iron phases. Significant amounts of ferrite balls were formed at MW 900 W for 10 min with 12 wt% charcoal.

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Characterisation-Assisted Reduction Roasting of BHJ, West Singhbhum, Jharkhand, India

Cited by 11 publications

References 9 publications

Recovery of Iron values through conventional beneficiation techniques from Banded Hematite Jasper of Eastern India with special reference to mineralogical and chemical characterization

Recovery of Iron values through conventional beneficiation techniques from Banded Hematite Jasper of Eastern India with special reference to mineralogical and chemical characterization

Properties of flash roasted products from low-grade refractory iron tailings and improvement method for their magnetic separation index

Investigation of microwave reduction of low-grade banded iron ores

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