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Key factors affecting nickel recovery during the segregation of laterite ores

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Authors
Grimsey, D.
Grimsey, Eric
Ibana, D.
Date
2017
Type
Journal Article

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Grimsey, D. and Grimsey, E. and Ibana, D. 2017. Key factors affecting nickel recovery during the segregation of laterite ores. Canadian Metallurgical Quarterly. 56 (4): pp. 401-409.
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Canadian Metallurgical Quarterly
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Dept of Mining Eng & Metallurgical Eng
Remarks

This is an Author's Original Manuscript of an article published by Taylor & Francis in Canadian Metallurgical Quarterly on 20/08/2017 available online at http://www.tandfonline.com/ 10.1080/00084433.2017.1361180

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Abstract

The segregation process as applied to nickel laterite ores involves the formation of gaseous nickel and iron chlorides which are subsequently reduced to form ferronickel on the surface of a solid carbon reductant. A fundamental study of the process has been carried out using limonite, nontronite and garnierite ores. The study highlighted the significant impacts that ore mineralogy and carbon addition have on the amount of nickel which is segregated rather than retained within the ore due to in situ reduction. These important aspects affecting nickel recovery and the success of the process are discussed in this paper.