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Precipitation of α-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions
Zhang, Peiyu; Guo, Qiang; Wei, Guangye; Qu, Jingkui; Qi, Tao
2015
发表期刊Hydrometallurgy
卷号153期号:MAR页码:21-29
摘要

Atmospheric hydrochloric-acid leaching of nickel laterite can produce a leaching solution containing a large amount of Fe. To recover Ni and Co, Fe should be separated from the laterite-leaching solutions. In this study, hydrolytic distillation was used to remove Fe from the synthetic laterite-leaching solutions; Ni and Co remained as soluble chlorides in the solutions, while most Fe was removed as Fe2O3. The conversion of Fe, recovery of Ni and Co, recovery of HCI, and the concentration of HCI, were investigated under various conditions. The results showed that the optimal output was obtained under the following process conditions: the hydrolysis temperature was 170 degrees C, the pressure was 0.03 MPa, the water flow rate was 1.67 mL/min, and the hydrolysis duration was 2 h. The effects of impurities under the optimized conditions were also studied, showing that as the amount of metal chlorides increased, the conversion of Fe decreased. The residues were characterized by X-ray diffraction analysis and scanning electron microscopy with X-ray energy-dispersive spectroscopy. Using the results, a growth model of alpha-Fe2O3 (hematite) spheres from the synthetic laterite-leaching solutions was constructed. (C) 2015 Elsevier B.V. All rights reserved.

收录类别SCI
语种英语
WOS记录号WOS:000353003600004
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20092
专题研究所(批量导入)
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GB/T 7714
Zhang, Peiyu,Guo, Qiang,Wei, Guangye,et al. Precipitation of α-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions[J]. Hydrometallurgy,2015,153(MAR):21-29.
APA Zhang, Peiyu,Guo, Qiang,Wei, Guangye,Qu, Jingkui,&Qi, Tao.(2015).Precipitation of α-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions.Hydrometallurgy,153(MAR),21-29.
MLA Zhang, Peiyu,et al."Precipitation of α-Fe2O3 and recovery of Ni and Co from synthetic laterite-leaching solutions".Hydrometallurgy 153.MAR(2015):21-29.
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