STUDY OF CERTAIN PARAMETERS IN LABORATORY-SCALE SMELTING OF SIVRIHISAR LATERITE ORES OF TURKEY

Date

2012-03-15

Author

KESKİNKILIÇ, ENDER
Pournaderi, Saeid
Geveci, Ahmet
Topkaya, Yavuz Ali

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Conventional ferronickel smelting has five main steps: Drying, calcination, prereduction, smelting and refining. In the scope of the current work, smelting experiments were conducted using Sivrihisar laterite ores (1.26% Ni) of Turkey. The ore samples previously subjected to drying, calcination and prereduction stages were smelted in alumina crucibles in a laboratoryscale horizontal tube furnace under argon atmosphere. Smelting experiments were performed at 1500, 1550 and 1600 degrees C. The amount of excess coal used in prereduction step was another variable. Sivrihisar laterite ore is a limonitic one with low MgO composition. Therefore, MgO was added to the smelting charge as a flux. The effects of experimental variables on metal Ni content and slag composition were investigated.

Subject Keywords

Smelting, Laterite, Ferronickel

URI

https://hdl.handle.net/11511/55898

Conference Name

3rd International Symposium on High-Temperature Metallurgical Processing held during the held during the TMS 141st Annual Meeting & Exhibition

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Graduate School of Natural and Applied Sciences, Conference / Seminar

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PRODUCTION OF CRUDE FERRONICKEL FROM SIVRIHISAR LATERITE ORES OF TURKEY KESKİNKILIÇ, ENDER; Pournaderi, Saeid; Geveci, Ahmet; Topkaya, Yavuz Ali (2013-03-07) In the current work, laboratory-scale smelting experiments were conducted using Sivrihisar laterites (1.26% Ni). The ore samples previously subjected to drying, calcination and prereduction stages were smelted in alumina crucibles in a horizontal tube furnace under argon atmosphere. For the smelting system used in the present work, 1550 degrees C and 40 minutes were determined to be the optimum smelting temperature and time, respectively. 25% excess coal addition in prereduction stage was reported to be cru...
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Citation Formats

E. KESKİNKILIÇ, S. Pournaderi, A. Geveci, and Y. A. Topkaya, “STUDY OF CERTAIN PARAMETERS IN LABORATORY-SCALE SMELTING OF SIVRIHISAR LATERITE ORES OF TURKEY,” presented at the 3rd International Symposium on High-Temperature Metallurgical Processing held during the held during the TMS 141st Annual Meeting & Exhibition, Orlando, FL, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55898.