Study on Mineral Separation-Metallurgy Process of Ferro-Nickel Concentrate Prepared from Laterite Ore

Abstract:

A new mineral processing and metallurgy technology was proposed, which was that the ferro-nickel concentrate was prepared from laterite ore by coal-based direct reduction. Under the reduction of cheap reductant and the catalysis of composite additives, the effects of coal-based direct reduction were enhanced and the ferro-nickel was extracted. The optimal conditions were followed that the alkalinity was 0.87, and the roasting temperature was 1150°C, and the roasting time is 2.5 hours. The recovery rate of nickel was 86.7% and the nickel content of ferro-nickel concentrate was 5.3%.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3256-3259
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3256
• Online since: January 2013
• Authors: Xue Liang Xiong, Zhi Yang
• Keywords: Coal-Based Direct Reduction, Ferro-Nickel, Laterite Ore, Nickel

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