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Leaching of rare earth elements from contaminated soils using saponin and rhamnolipid bio-surfactant周丹1,李真真1,罗仙平1,2,苏佳11. Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control...">The effective leaching of rare earth elements(La, Ce, Y and Eu) from simulated contaminated soil using bio-surfactant was investigated in a lab-scale column leaching experiment, where anionic......
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Geochemical Study of Rare Earth Elements on Four Attapulgite Clay Deposits in Jiangsu and Anhui Provinces, China 汪家权1,岳书仓1,鲁安怀2,彭书传1,徐晓春1,陈天虎1 (1.Department of Resources and Environmental Sciences... condition in the Earth''s surface and the adsorption of the colloid solution of the lake water in the basin of the continent in the time of the clays formed. The attapulgite clays produced by the reaction......
Separation and Enrichment of Rare Earth Elements in Phosphorite in Xinhua,Zhijin,Guizhou张杰,孙传敏,杨国峰,谢飞摘 要:<正>The phosphorite ores-deposits rich in rare earth elements(REE) in Zhijin, Xinhua, Guizhuo occurs in the early Cambrian Meishucun and at the bottom part of Qiongzhusi stage (the upper layer of phosphorites), belonging to Yangzi stratum......
earth elements and acting mechanisms of rare earth additives in ceramic die materials. Key words:ceramic die material; composition; processing technology; mechanical property; engineering performance...Composition, Processing Technology and Property of Ceramic Die Materials Containing Rare Earth Additives Fang Bin1,Xu Chonghai1,Xiao Guangchun1 (1.School of Mechanical Engineering, Shandong......
that the addition of rare earth elements to Al-Si alloys can refine the grain size of primary Si, increase the tensile strength and reduce the friction coefficient. TZENG et al [16] studied the effects... improve the microstructure and mechanical properties of the alloy, while the cost of Al alloy notably increases with the addition of rare earth elements, significantly restricting their commercial......
Dual characteristic of trace rare earth elements in a commercial casting Al-Cu-X alloyLi Fan1,2,Qi-Tang Hao1,2,Wen-Ke Han1,21. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University2. School of Materials Science and Engineering, Northwestern Polytechnical University摘 要:The effect of rare earth elements on microstructure......
using rare earth elements as surface modifier for the surface treatment of glass fiber. [全文内容正在添加中] ...Impact Wear Properties of Metal-Plastic Multilayer Composites Filled with Glass Fiber Treated with Rare Earth Element Surface Modifier 程先华1,薛玉君1 (1.School of Mechanical Engineering, Shanghai......
="ChDivSummary">Rare-earth modification Bi2 WO6 composites(RE/Bi2 WO6) were studied by experimental performance and theory computation based on the different 4 f orbits of selected rare earth elements(La,Ce,Gd... pollutant to investigate the photocatalytic activity of prepared RE/Bi2 WO6 composites.The results of experiment and computation show that four rare earth elements with different electron configurations......
A Quantum Chemical Study on Hexanuclear Cluster Halides of Rare Earth Elements and Their Interstitial Compounds林梦海,张乾二摘 要:<正> The electronic structures of rare earth cluster halides R(R6X12) and their interstitial compounds R7X12Zwere studied by the DV-X? method (R=Sc,Y,Pr,Gd or Er;X=Cl,Br or I;Z=B,C,N,Fe,Co or Ru).Theresults show that because f......
