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Biomass briquette as an alternative reductant for low grade iron ore resources

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dc.contributor.author Rath, S.S.
dc.contributor.author Rao, D.S.
dc.contributor.author Tripathy, A.
dc.contributor.author Biswal, S.K.
dc.date.accessioned 2018-12-17T10:34:09Z
dc.date.available 2018-12-17T10:34:09Z
dc.date.issued 2018
dc.identifier.citation Biomass And Bioenergy, 108, 2018: 447-454
dc.identifier.issn 0961-9534
dc.identifier.uri http://ore.immt.res.in/handle/2018/2477
dc.description.abstract The present study explores the application of biomass briquette, produced from the unutilized vegetative remnants, as an alternative reductant for the reduction roasting-magnetic separation of an iron ore slime sample assaying 56.2% Fe. The X-Ray Diffraction (XRD) studies indicated tridymite and quartz to be the only crystalline mineral phases present in the biomass briquettes while the Fourier Transform Infra Red (FTIR) spectra identified several organic functional groups representing the biomass. Iron ore concentrates with similar to 65% Fe and similar to 64% weight recovery were obtained with reduction conditions such as temperature: 650-750 degrees C, reductant to feed ratio: 0.15, reduction time: 30-45 min and reductant size: -3+ 1 mm. The analysis of the statistically designed experiments suggested that temperature is the most crucial factor followed by time, reductant to feed ratio and reductant size. Magnetite and hematite were found to be the only major phases present in the magnetic fractions produced from roasting at the optimum conditions. Many feebly magnetic phases like wustite, fayalite and clinoferrosilite appeared at higher temperature and reductant to feed ratios, which was confirmed by XRD, reflected light microscopy and quantitative mineralogical analysis.
dc.language en
dc.publisher Elsevier
dc.relation.isreferencedby SCI
dc.rights Copyright [2018]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject Agricultural Engineering
dc.subject Biotechnology & Applied Microbiology
dc.subject Energy & Fuels
dc.title Biomass briquette as an alternative reductant for low grade iron ore resources
dc.type Journal Article
dc.affiliation.author CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, Odisha, India


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