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mixed-acid elution ion-exchange chromatography [J]. Geostand Newsl, 1991, 15(1): 139-145. [13] GUPTA J P. Analysis of the CCRMP Oka-2 rare-earth reference mineral of the britholite-apatite series..., 1994, 10(1): 20-24. [8] GUPTA J P. Determination of yttrium and rare-earth elements in rocks by graphite-furnace atomic-absorption spectrometry [J]. Talanta, 1981, 28(1): 31-36. [9] HAVEL J, MORENO C......
Catalytic Reduction of SO2 on CeO2-La2O3 Rare Earth Mixed Compounds 胡辉1,李劲1,李胜利1,程国宏1 (1.Department of Environmental Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) Abstract:Adding rare earth oxide CeO2 with variable valences to La2O3 formed a mixture of rare earth oxides. By means of dipping CeO2, La2O3 and their mixture, whose carriers were all γ-Al2O3, were......
Decomposition of the mixed rare earth concentrate by microwave-assisted method黄宇坤,张廷安,刘江,豆志河,田俊行Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Ministry of Education,School of Materials & Metallurgy,Northeastern University摘 要:A novel process was proposed to strengthen the decomposition of the mixed rare earth concentrate......
Decomposition of the mixed rare earth concentrate by microwave-assisted method黄宇坤,张廷安,刘江,豆志河,田俊行Key Laboratory of Ecological Metallurgy of Multi-Metal Intergrown Ores of Ministry of Education,School of Materials & Metallurgy,Northeastern University摘 要:A novel process was proposed to strengthen the decomposition of the mixed rare earth concentrate......
Mixed rare earth concentrate leaching with HCl-AlCl3 solutionMei Li1,2,Xiao-Wei Zhang1,2,Zhao-Gang Liu1,Mi-Tang Wang2,Jia Liu2,Jian-Ping Yang21. College of Materials Science and Engineering, Beijing... and Application of Rare摘 要:A method of Baotou mixed rare earth concentrate leaching was investigated. According to the principle of complex leaching, the quadratic......
earth elements (LREEs) and the heavy rare earth elements (HREEs). The chondrite-normalized ratios of REEs showed LREEs enrichment and flat HREE depletion. Key words:enrichment factor; rare earth...Rare earth elements distribution in marine sediments of Malaysia coasts Abdi Mohammad Reza1,Rezaee Ebrahim Saraee Khadijeh2,Abdul Khalik Wood3,Salon B. Elias2 (1.Department of physics,Faculty......
Up-conversion processes of rare earth ions in heavy metal glassesL.Grobelny1,W.A.Pisarski1,J.Pisarska1,R.Lisiecki2,W.Ryba-Romanowski21. Institute of Chemistry,University of Silesia2. Institute of Low Temperature and Structure Research,Polish Academy of Sciences摘 要:Heavy metal lead germanate glasses doubly doped with Yb3+ and Ln3+ ions(Ln=Er,Tm) were......
Up-conversion processes of rare earth ions in heavy metal glassesL.Grobelny1,W.A.Pisarski1,J.Pisarska1,R.Lisiecki2,W.Ryba-Romanowski21. Institute of Chemistry,University of Silesia2. Institute of Low Temperature and Structure Research,Polish Academy of Sciences摘 要:Heavy metal lead germanate glasses doubly doped with Yb3+ and Ln3+ ions(Ln=Er,Tm) were......
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of the austenite in heavy rail steel. Under the experimental condition, the plasticity and the impacting toughness of heavy rail steel with 0.005wt% La can evidently be improved. Key words:rare earth; heavy rail steel; microscopic structure; sulfide inclusion; property; [全文内容正在添加中] ......
