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REEs in Natash area.Natash laterite deposits occur as horizons(5-15 m in thickness) at the boundary between the Cretaceous sandstones,and Natash flows.Laterite was recorded in more than twenty six occurrence distributed over an area of about 500 km2 along and around Wadi Natash.It ranges in color from light-grey,dark-grey to reddish-brown.The distribution of laterite deposits is structural......
; 文献标志码:A Preparation of Ni from nickel laterite leaching solution by anion membrane electrolysis method MENG Long1, 2, 3, QU Jing-kui2, 3, XIE Ke-qiang1, ZHANG Pei-yu2, 3, HAN... laterite atmospheric acid leaching purifying solution as main raw material. The influences of parameters including the electrolyte composition, temperature, time, current density, pH and other factors......
, China) Abstract: The worldwide processing status of nickel laterite ores is reviewed. The overall exploration of laterite nickel needs to consider the contents of nickel and cobalt in ores, ore types... for the exploration of nickel laterite. Meanwhile, pressure acid leaching attracts much attention for practical application with the development of fabrication technology of large-scale pressure reaction......
硫化法分离红土矿中镍铁的研究 王瑞祥1,周友元2,熊道陵1,梁勇1,李金辉1 (1.江西理工大学,材料与化学工程学院,江西,赣州,341000;2.中南大学,冶金科学与工程学院,湖南,长沙,410083) 摘要:研究了硫化沉淀分离镍与铁的分离机理及工艺影响条件.结果表明:温度,pH值,硫化剂加入方式,配离子均会对镍和铁的分离富集产生影响,其中pH值的影响最大;控制好pH值,选择好合适的温度及加入方式,镍与铁可以较好的分离. 关键词:红土矿; 硫化沉淀法; 镍铁分离; laterite; sulphide precipitation; nickel and iron separation; [全文内容正在添加中] ......
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/min,锈蚀温度80 ℃,锈蚀时间8 h,搅拌速率300 r/min和固液比1:10的条件下,镍和钴的浸出率分别达到90.9%和80.2%,铁的浸出率仅为9.9%,实现了铁与镍和钴的分离.关键词:红土镍矿；镍；钴；锈蚀法；浸出率Extraction of nickel and cobalt from reductive laterite by corrosion processZHAO Yu-xian, HU Qi-yang, LI Xin-hai, WANG Zhi-xing, GUO Hua-jun(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)Abstract:The treatment of reductive laterite......
usually consist of three layers, namely, the limonitic, saprolitic and garnieritic layer [3-6]. Approximately 70% of the world’s nickel reserves is contained within laterite... 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......
湖北蛇屋山红土型金矿床PSDs特征及其意义高帮飞1(1.北京市地质大学地质过程与矿产资源国家重点实验室中铁资源集团地质勘查有限公司)摘 要:土壤颗粒粒度分布(PSDs)是复杂物理化学作用的结果,研究表明,分形理论是刻画这一复杂过程的有利工具.通过对蛇屋山金矿床赋矿红土的PSDs研究发现,赋矿红土颗粒平均粒度在3.42~28.53μm之间,同时从风化壳浅部到深部有增加的趋势.分形统计学研究表明,赋矿红土PSDs在1.71~9.46μm范围内具有分形特征(R2>0.94),分维值(D)变化范围为2.86~2.......
Thermal behaviors and growth of reduced ferronickel particles in carbon-laterite compositesHUANG Donghuaa, b, ZHANG Jianlianga, MAO Ruia, and CAO Mingminga a School of Metallurgical and Ecological..., Beijing 100083, China摘 要:The thermal behaviors of single laterite ore and graphite-laterite mixtures were investigated by thermogravimetry (TG), derivative......
; 文献标志码:A 文章编号:1672-7207(2013)01-0001-07 Study of producing nickel concentrate from low-grade laterite ore ZHU Deqing1, ZHENG Guolin1, PAN Jian1, LI..., Central South University, Changsha 410083, China; 3. China Nonferrous Metal Mining (Group) Co. Ltd., Beijing 100029, China) Abstract: The enrichment of Ni from a low-grade saprolite laterite assaying......
