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Desiliconization kinetics of nickeliferous laterite ores in molten sodium hydroxide system MU Wen-ning(牟文宁), ZHAI Yu-chun(翟玉春) Institute of Metallurgical Physical Chemistry...; Abstract: A novel process was proposed for treating nickeliferous laterite ores with molten sodium hydroxide. The effect on silicon......
A green process for recovering nickel from nickeliferous laterite ores ZHAI Yu-chun(翟玉春)1, MU Wen-ning (牟文宁)2, LIU Yan (刘 岩)1, XU Qian(许 茜)1 1. Department of Metallurgical Physical Chemistry... laterite ores. First of all, silicon and magnesium were removed from lateritic ore by high concentration sodium hydroxide leaching and carbonation respectively, so as to enrich nickel. Then the method......
Leaching of magnesium from desiliconization slag of nickel laterite ores by carbonation process MU Wen-ning(牟文宁)1, ZHAI Yu-chun(翟玉春)2, LIU Yan (刘 岩)2 1. Department of Materials Science... laterite ores by carbonation process was studied. The influence of various parameters was investigated to optimize the conditions and determine the kinetics of the reaction. The results show......
Activation pretreatment of limonitic laterite ores by alkali-roasting using NaOHQiang Guo1,2,3), Jing-kui Qu1,2), Tao Qi1,2), Guang-ye Wei1,2,4), and Bing-bing Han1,2) 1) National Engineering..., China摘 要:Activation pretreatment of Cr-containing limonitic laterite ores by NaOH roasting to remove Cr, Al, and Si, as well as its effect on Ni and Co......
Extraction of cobalt from laterite ores by citric acid in presence of ammonium bifluoride LI Guang-hui(李光辉),RAO Ming-jun(饶明军), LI Qian(李 骞), PENG Zhi-wei(彭志伟), JIANG Tao(姜 涛)1 School...; Abstract: Citric acid was used to selectively extract cobalt from limonite-type laterite ores......
____________________________________________________________________________________________ Abstract: The application of microwave technique in the hydrometallurgy of nickel laterite ores was described. The mixture of nickel laterite ores and sulfuric acid was pre-treated... diffraction pattern of laterite ore sample As a typical experimental procedure, the mixture of 30.00 g nickel laterite ores and sulfuric acid with predetermined mass ratio of acid to ore was pre-treated......
J. Cent. South Univ. (2020) 27: 3249-3258 DOI: https://doi.org/10.1007/s11771-020-4463-2 Nitric acid pressure leaching of limonitic laterite ores: Regeneration of HNO3 and simultaneous synthesis... 2020 Abstract: An innovative technology, nitric acid pressure leaching of limonitic laterite ores, was proposed by our research team. The HNO3 regeneration is considerable significance......
method was developed to synthesize Co3O4 nanoparticles using cobalt liquor obtained from the atmospheric pressure acid leaching process of nickel laterite ores. The effects of the precursor reaction...Synthesis and characterization of Co3O4 prepared from atmospheric pressure acid leach liquors of nickel laterite oresLong Meng1,2,3,Zhan-cheng Guo2,Jing-kui Qu1,3,Tao Qi1,3,Qiang Guo1,3,4,Gui-hua......
oxide ores [3]. It is anticipated that about half primary nickel will be produced from nickeliferous laterite ores after 2012 [4-5]. At present, hydrometallurgical processes are more applicable to the nickeliferous laterite ores [6-9]. In consideration of the composition difference of ores, different methods and flowsheets are adopted in hydrometallurgical processes. For instance, high......
in the future.Laterite ores especially the saprolitic laterite ore are one refractory nickel resource,the nickel and iron of which can be effectively recovered by direct reduction and magnetic... mud addition promoted the reduction of the saprolitic laterite ore and the iron ores in the red mud were co-reduced and recovered.By adding 35wt%red mud,the nickel grade and recovery were 4.90wt......
