Low-Temperature Carbothermic Reduction of Indonesia Nickel Lateritic Ore with Sub-Bituminous Coal

4th International Conference on Advanced Materials Science and Technology

Setiawan, I.^1,2 ; Harjanto, S.^1 ; Subagja, R.^2

Department of Metallurgy and Material Engineering, University of Indonesia, Indonesia^1

Research Center for Metallurgy and Material, LIPI, Indonesia^2

关键词: concentrate;    Effect of temperature;    laterite;    Low temperatures;    Muffle furnaces;    Nickel concentrate;    Nickel laterite;    Subbituminous coal;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012019/pdf
DOI  :  10.1088/1757-899X/202/1/012019

来源: IOP

【 摘 要 】

In this work, the experiment was conducted to investigate the effect of temperature and sub-bituminous coal on upgrading nickel laterites ores by carbothermic reduction. The reduction was carried out in the muffle furnace at a temperature ranging of 800-1100 °C. The produced calcine from reduction step was grounded in vibrating mill, mixed with water and passed on a magnetic separator to separate nickel concentrates from the tailing. The experimental results showed that the concentrate with highest nickel grade was produced at temperature 1000 °C. The nickel grade on concentrate was 5.0 %, with the recovery of nickel was 80.6 %.