Direct Smelting of Chromite and Laterite Ores with Carbon under Argon Atmosphere

Erlinda O. Yape; Nathaniel M. Anacleto

doi:10.4028/www.scientific.net/AMR.849.170

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 849Direct Smelting of Chromite and Laterite Ores with...

Direct Smelting of Chromite and Laterite Ores with Carbon under Argon Atmosphere

Abstract:

Chromite and laterite ores from local sources were smelted in a vertical tube furnace with activated carbon as reducing agent at 1400°C to 1550°C using graphite crucible under argon atmosphere. It is shown that the grade and composition of the ore are the main factors determining the feasibility of smelting a mixture of chromite and laterite ores to produce a Fe-Ni-Cr crude alloy. The high recovery of iron and nickel in the alloy indicates the highly reducing condition prevailing in the smelting reduction experiments. It is also shown that the solubility of Ni in the slag increases with Ni concentration in the alloy and the FeO concentration in the slag. The chromium content of the slag increases with increasing iron content of the slag.

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Periodical:

Advanced Materials Research (Volume 849)

Pages:

170-176

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.849.170

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Online since:

November 2013

Authors:

Erlinda O. Yape*, Nathaniel M. Anacleto

Keywords:

Chromite, Laterite, Nickel, Slag, Smelting

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References

[1] Kawahara, M., Toguri, J. and Bergman, R. (1988): Reducibility of Laterite Ores, Metallurgical and Materials Transactions B; 19B, 4; p.181.

DOI: 10.1007/bf02654202

Google Scholar

[2] Utigard, T. (1994): An Analysis of Slag Stratification in Nickel Laterite Smelting Furnaces Due to Composition and Temperature Gradients, Metallurgical and Materials Transactions B; 25B, 8; p.491.

DOI: 10.1007/bf02650070

Google Scholar

[3] Takano, C., Ferdinando, L., Cavallante, D., Martins, S. (2005): Recovery of Cr, Ni and Fe from dust generated in stainless, Mineral Processing and Extractive Metallurgy, Vol. 114, 201.

DOI: 10.1179/037195505x28528

Google Scholar

[4] Uslu, E. and Eric, R., (1991): The reduction of chromite in liquid iron-chromium-carbon alloys, J. S. Afr. Inst. Min. Metal/. vol. 91, no. 11. 397-409.

Google Scholar

[5] Guangqiang, L. and Fumitaka, T. (2001); Distribution Equilibria of Fe, Co and Ni between MgO-saturated FeOx–MgO–SiO2 Slag and Ni Alloy, ISIJ International, Vol. 41, No. 11, p.1303–1308.

DOI: 10.2355/isijinternational.41.1303

Google Scholar

[6] Kho, T., Swinbourne, D., Blanpain, B., and Arnout, S, (2009): Understanding stainless steelmaking through computational thermodynamics, Mineral Processing and Extractive Metallurgy, Vol. 118, 1-8.

DOI: 10.1179/174328509x481909

Google Scholar

[7] Dennis, W. and Richardson, F. (1953): The equilibrium controlling the decarburisation of iron- chromium-carbon melts, J. Iron Steel Inst., 175, 264–266.

Google Scholar