Production of crude ferronickel from sivrihisar laterite ores of Turkey

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2013

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Minerals, Metals and Materials Society

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Metallurgical and Materials Engineering
(2004)
The main fields of operation for Metallurgical and Materials Engineering are production of engineering materials, defining and improving their features, as well as developing new materials to meet the expectations at every aspect of life and the users from these aspects. Founded in 2004 and graduated its 10th-semester alumni in 2018, our Department also obtained MÜDEK accreditation in the latter year. Offering the opportunity to hold an internationally valid diploma through the accreditation in question, our Department has highly qualified and experienced Academic Staff. Many of the courses offered at our Department are supported with various practice sessions, and internship studies in summer. This way, we help our students become better-equipped engineers for their future professional lives. With the Cooperative Education curriculum that entered into effect in 2019, students may volunteer to work at contracted companies for a period of six months with no extensions to their period of study.

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Abstract

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°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.

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Energy Comm. Extr. Process. Div. Miner., Metals Mater. Soc. (TMS); Pyrometallurgy Committee

Keywords

Ferronickel, Laterite, Smelting

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2

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TMS Annual Meeting -- 4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition -- 3 March 2013 through 7 March 2013 -- San Antonio, TX -- 96614

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Start Page

453

End Page

460

URI

https://doi.org/10.1002/9781118663448.ch55
 https://hdl.handle.net/20.500.14411/3713

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Scopus