Response of cold briquetted iron (CBI) to high temperatures treatment

This investigation was carried out to assess the behaviours of Cold Briquetted Iron (CBI) when exposed to increasing temperature changes up to its complete melting. High-temperature behaviours and melting characteristics of CBI were studied. Ground as-received CBI briquette and those heated to t...

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Main Authors: Ibitoye S.A., Adeleke A.A., Tiamiyu A.O., Popoola A.P.I., Afonja A.A.
Format: Article
Language:English
Published: University of Belgrade, Technical Faculty, Bor 2010-01-01
Series:Journal of Mining and Metallurgy. Section B: Metallurgy
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391002203I.pdf
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author Ibitoye S.A.
Adeleke A.A.
Tiamiyu A.O.
Popoola A.P.I.
Afonja A.A.
author_facet Ibitoye S.A.
Adeleke A.A.
Tiamiyu A.O.
Popoola A.P.I.
Afonja A.A.
author_sort Ibitoye S.A.
collection DOAJ
description This investigation was carried out to assess the behaviours of Cold Briquetted Iron (CBI) when exposed to increasing temperature changes up to its complete melting. High-temperature behaviours and melting characteristics of CBI were studied. Ground as-received CBI briquette and those heated to temperatures ranging from 500°C to 1000°C were sieved to maximum of 30 microns diameter size and their room-temperature x-ray diffraction (XRD) measured. CBI was found to contain among others, α-iron, cementite and silica phases. Cementite was found to commence decomposition at 500°C - 600°C and completed by 700°C with conspicuous increase in the concentration of α-iron phase. Only α-iron and silica phases were sustained in CBI at temperatures above 700°C. In an inert atmosphere, it was discovered that CBI melted over a temperature range of 1527.3°C to 1536.96°C accompanied by an irrecoverable weight loss of 9.6 wt.% of the starting material. It was concluded that melting CBI would require charging along it appropriate fluxes to take care of the unreduced iron oxide and incorporation into facility for melting CBI an effective deslagging mechanism to remove unavoidable possible voluminous slag that would be formed.
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institution Kabale University
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publishDate 2010-01-01
publisher University of Belgrade, Technical Faculty, Bor
record_format Article
series Journal of Mining and Metallurgy. Section B: Metallurgy
spelling doaj-art-69e0fdc3057547b4853ffdbf14cc4ac82025-02-02T12:15:22ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392010-01-0146220321310.2298/JMMB1002203IResponse of cold briquetted iron (CBI) to high temperatures treatmentIbitoye S.A.Adeleke A.A.Tiamiyu A.O.Popoola A.P.I.Afonja A.A.This investigation was carried out to assess the behaviours of Cold Briquetted Iron (CBI) when exposed to increasing temperature changes up to its complete melting. High-temperature behaviours and melting characteristics of CBI were studied. Ground as-received CBI briquette and those heated to temperatures ranging from 500°C to 1000°C were sieved to maximum of 30 microns diameter size and their room-temperature x-ray diffraction (XRD) measured. CBI was found to contain among others, α-iron, cementite and silica phases. Cementite was found to commence decomposition at 500°C - 600°C and completed by 700°C with conspicuous increase in the concentration of α-iron phase. Only α-iron and silica phases were sustained in CBI at temperatures above 700°C. In an inert atmosphere, it was discovered that CBI melted over a temperature range of 1527.3°C to 1536.96°C accompanied by an irrecoverable weight loss of 9.6 wt.% of the starting material. It was concluded that melting CBI would require charging along it appropriate fluxes to take care of the unreduced iron oxide and incorporation into facility for melting CBI an effective deslagging mechanism to remove unavoidable possible voluminous slag that would be formed.http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391002203I.pdfcementitecold briquetted ironhigh temperaturesXRD
spellingShingle Ibitoye S.A.
Adeleke A.A.
Tiamiyu A.O.
Popoola A.P.I.
Afonja A.A.
Response of cold briquetted iron (CBI) to high temperatures treatment
Journal of Mining and Metallurgy. Section B: Metallurgy
cementite
cold briquetted iron
high temperatures
XRD
title Response of cold briquetted iron (CBI) to high temperatures treatment
title_full Response of cold briquetted iron (CBI) to high temperatures treatment
title_fullStr Response of cold briquetted iron (CBI) to high temperatures treatment
title_full_unstemmed Response of cold briquetted iron (CBI) to high temperatures treatment
title_short Response of cold briquetted iron (CBI) to high temperatures treatment
title_sort response of cold briquetted iron cbi to high temperatures treatment
topic cementite
cold briquetted iron
high temperatures
XRD
url http://www.doiserbia.nb.rs/img/doi/1450-5339/2010/1450-53391002203I.pdf
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AT adelekeaa responseofcoldbriquettedironcbitohightemperaturestreatment
AT tiamiyuao responseofcoldbriquettedironcbitohightemperaturestreatment
AT popoolaapi responseofcoldbriquettedironcbitohightemperaturestreatment
AT afonjaaa responseofcoldbriquettedironcbitohightemperaturestreatment