Journal
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
Volume 151, Issue -, Pages 59-67Publisher
ELSEVIER
DOI: 10.1016/j.minpro.2016.04.007
Keywords
Flotation; Nickel laterite; Fine particles; Selective aggregation; Flocculation
Funding
- Labex Ressources21 (Strategic Metals in the 21st Century) [ANR-11-LABX-0030]
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The challenges in processing nickel laterite ores using flotation process were comprehensively reviewed. Literature shows that flotation has not been successful to recover nickel from laterite ores. Nickel in laterite ores is often finely disseminated in various minerals in very fine size. Therefore, fine grinding can be useful to liberate nickel-containing particles. However, particles resulted from fine grinding are often very fine, and recovery of such particles is low in the conventional flotation cells. It has been suggested that using reactor-separator cells with more probability of particle-bubble attachment can be useful to recover fine particles. Therefore, these types of cells (or similar) should be tested in processing laterite ores. In addition, increasing particle size often results in enhancing the particle bubble interaction in flotation. Selective flocculation of fine particles could be therefore the key parameter to improve the flotation performance of laterite ores. Flocculation of these type of ores needs to be thoroughly investigated. (C) 2016 Elsevier B.V. All rights reserved.
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