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Johny W. Soedarsono
Department of Metallurgy and Material, Faculty of Engineering Universitas Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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REDUCTION OF GOETHITIC IRON ORE USING THERMOGRAVIMETRIC METHOD Adji Kawigraha; Sri Harjanto; Johny W. Soedarsono; Pramusanto Pramusanto
Indonesian Mining Journal Vol 16, No 2 (2013): INDONESIAN MINING JOURNAL Vol. 16 No. 2 June 2013
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3115.721 KB) | DOI: 10.30556/imj.Vol16.No2.2013.427

Abstract

Compared to main iron ore minerals, either hematite or magnetite, Indonesian goethite is relatively abundant. However, this is not common to be used as feed material in iron making industries. Limitation in Indonesian high quality iron ore resources, the iron making industries have to seek another iron source such as the low grade iron ore of goethitic ore. Evaluation using thermogravimetric method was employed for analyzing behavior of goethitic composite pellet during reduction. The data show that reduction of goethitic iron ore is started by transforming goethite to hematite and then followed by iron reduction. The reduction was started by Fe3O4 formation at 442 °C and Fe at 910 °C. At those temperatures the composite pellet lost its weight. Identifying the FeO is hardly difficult due to the short range of phase existence.
REDUCTION OF GOETHITIC IRON ORE USING THERMOGRAVIMETRIC METHOD Adji Kawigraha; Sri Harjanto; Johny W. Soedarsono; Pramusanto Pramusanto
Indonesian Mining Journal Vol 16 No 2 (2013): INDONESIAN MINING JOURNAL Vol. 16 No. 2 June 2013
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol16.No2.2013.427

Abstract

Compared to main iron ore minerals, either hematite or magnetite, Indonesian goethite is relatively abundant. However, this is not common to be used as feed material in iron making industries. Limitation in Indonesian high quality iron ore resources, the iron making industries have to seek another iron source such as the low grade iron ore of goethitic ore. Evaluation using thermogravimetric method was employed for analyzing behavior of goethitic composite pellet during reduction. The data show that reduction of goethitic iron ore is started by transforming goethite to hematite and then followed by iron reduction. The reduction was started by Fe3O4 formation at 442 °C and Fe at 910 °C. At those temperatures the composite pellet lost its weight. Identifying the FeO is hardly difficult due to the short range of phase existence.
Co-Authors Adji Kawigraha Pramusanto Pramusanto Sri Harjanto