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J. Cent. South Univ. Technol. (2008) 15: 679-683 DOI: 10.1007/s11771-008-0126-4 Leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system WANG Rui-xiang(王瑞祥)1, 2, TANG Mo-tang(唐谟堂)1...; Abstract: The leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system......
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. Mineralogy and crystal chemistry of a low grade nickel laterite ore[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(4): 907-916. [4] 李艳军, 于海臣, 王德全, 尹文新, 白元生. 红土镍矿资源现状及加工工艺综述[J]. 金属矿山...；直接还原；相变 中图分类号:TD925；TF55 文献标志码:A Effect of high-temperature phase transition of serpentine mineral on direct reduction roasting of laterite nickel ore LIU Zhi-guo, SUN Ti......
; 镍的化学物相分析 Table 1 Chemical phase analysis of nickel of laterite sample 图1 红土镍矿TG-DSC曲线 Fig. 1 TG-DSC curves of laterite ore 采用X射线衍射仪(日本理学D/Max 2500型X射线衍射仪)测定还原产物的物相组成；采用光学显微镜(德国徕卡..., FUJITA T. Calcination of low-grade laterite for concentration of Ni by magnetic separation[J]. Minerals Engineering, 2010, 23(4): 282-288. [3] WARNER A E M, D?AZ C M, DALVI A D, MACKEY P J, TARASOV A V......
): 2173-2177. LIANG Wei, WANG Hui, FU Jian-gang, HE Zhang-xing. High recovery of ferro-nickel from low grade nickel laterite ore[J]. Journal of Central South University (Science and Technology), 2011, 42(8... and recovered without adding additives. The nickel recovery rate can reach 90%, but nickel grade is low. The nickel in magnesian laterite ore is harder to be reduced and recovered without adding additives......
Science, 2009, 42: 615-624. [22] MOHAMMADREZA F, MOHAMMAD N, ZIAEDDIN S S. Nickel extraction from low grade laterite by agitation leaching at atmospheric pressure [J]. International Journal of Mining... on the nickel extraction were examined. 2 Experimental 2.1 Material and method The lateritic ore came from the region, , Turkey. The raw material used in this work was a typical limonitic laterite ore with high......
J. Cent. South Univ. (2012) 19: 77-84 DOI: 10.1007/s11771-012-0975-8 Leaching kinetics of low-grade copper ore with high-alkality gangues in ammonia-ammonium sulphate solution LIU Zhi-xiong(刘志雄)1, 2... Engineering, Jishou University, Jishou 416000, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The leaching kinetics of low-grade copper ore with high-alkality......
Preparation of ferronickel from nickel laterite via coal-based reduction followed by magnetic separationLun-wei Wang1,Xue-ming Lü1,Zhi-xiong You1,Xue-wei Lü1,Chen-guang Bai11. College of Materials... ferronickel from laterite ore using rotary hearth furnace or rotary kiln processes. This study aims to ameliorate sticking problems by using silicon dioxide(SiO2) to adjust the melting degree......
of laterite-nickel ore[J]. Hydrometallurgy, 2009, 28(1): 3-11. [2] SUDOL S. The thunder from everything you wanted to know about nickel laterites but were afraid to ask[J]. Can Min, 2005, 126(5... oxides ores[J]. Energy Metals, 1981, 34(3): 882-887. [8] 刘 学, 温建康, 阮仁满. 真菌衍生有机酸浸出低品位氧化镍矿[J]. 稀有金属, 2006, 13(4): 490-493.LIU Xue, WEN Jian-kang, RUAN Ren-man. Leaching of nickel and cobalt from low-grade......
氢化物发生-原子荧光光谱法同时测定红土镍矿中砷锑铋何飞顶1,李华昌2,袁玉霞2(1.广西壮族自治区桂林市桂林理工大学2.北京矿冶研究总院,北京 100044)摘 要:采用氢化物发生-原子荧光光谱(HG-AFS)法测定红土镍矿中砷,锑,铋含量,并对影响其光谱测量的各种因素进行了较为详细的探讨.实验中,以王水水浴法溶解样品降低待测元素的挥发损失,以硫脲和抗坏血酸混合溶液为掩蔽剂来消除干扰元素的影响.方法的检出限在0.10~0.25 ng/mL之间;对红土镍矿样品中的砷,锑,铋进行分析,其回收率在91%~113%之间......
