Laboratory-scale smelting of limonitic laterite ore from Central Anatolia

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2017-07-01

Author

Pournaderi, S.
KESKİNKILIÇ, ENDER
Geveci, Ahmet
Topkaya, Yavuz Ali

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The feasibility of ferronickel production from a low-grade limonitic laterite ore was investigated. The ore was first calcined and then prereduced in the solid state. The reduced ore was then smelted to produce ferronickel. The effects of coal addition, smelting temperature, and retention time on the process were investigated. Chemical and physical losses in the slag were separately quantified. Coal addition was the main parameter that controlled the ferronickel grade and losses in the slag. The melting point of the slag was well below that of the ferronickel, which enhanced metal-slag separation and minimized physical losses in the slag. A microstructural study of an industrial slag revealed that Cr-rich particulates, which were suspended in the slag, were mainly responsible for the physical losses in the slag.

Subject Keywords

Ferronickel, Limonite, Physical loss, Chemical loss, Slag

URI

https://hdl.handle.net/11511/31854

Journal

JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY

DOI

https://doi.org/10.17159/2411-9717/2017/v117n7a11

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

S. Pournaderi, E. KESKİNKILIÇ, A. Geveci, and Y. A. Topkaya, “Laboratory-scale smelting of limonitic laterite ore from Central Anatolia,” JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY, pp. 695–703, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31854.