Key factors affecting nickel recovery during the segregation of laterite ores
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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
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.
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