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PRODUCTION OF CRUDE FERRONICKEL FROM SIVRIHISAR LATERITE ORES OF TURKEY
Date
2013-03-07
Author
KESKİNKILIÇ, ENDER
Pournaderi, Saeid
Geveci, Ahmet
Topkaya, Yavuz Ali
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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 crucial to obtain the desired Ni content in the final product. Colemanite in calcined form has long been known as a flux used in pyrometallurgical systems such as steelmaking and copper matte-smelting. To investigate the effects of calcined colemanite addition on the ferronickel metal-slag system, calcined colemanite of 2% and 4% of the total metal and slag weight was charged as a flux and smelted under the optimum conditions described above.
Subject Keywords
Smelting
,
Laterite
,
Ferronickel
URI
https://hdl.handle.net/11511/55558
Collections
Graduate School of Natural and Applied Sciences, Conference / Seminar
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KESKİNKILIÇ, ENDER; Pournaderi, Saeid; Geveci, Ahmet; Topkaya, Yavuz Ali (2012-03-15)
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 exces...
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E. KESKİNKILIÇ, S. Pournaderi, A. Geveci, and Y. A. Topkaya, “PRODUCTION OF CRUDE FERRONICKEL FROM SIVRIHISAR LATERITE ORES OF TURKEY,” 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55558.
