共搜索到21886条信息，每页显示10条信息，共2189页。用时：0小时0分0秒859毫秒
A novel fused iron catalyst for ammonia synthesis promoted with rare earth gangue WANG Rong1,LIN Jianxin1,WEI Kemei1,YU Xiujin1,LIN Bingyu1 (1.National Engineering Research Center of Chemical Fertilizer Catalyst,Fuzhou University,Fuzhou 35002,China) Abstract:Rare earth gangue, which mainly consists of mixtures of fight rare earths such as lanthana, ceda, neodymium oxide and praseo-dymium oxide......
phases in BaTb2Mn2O7, was refined including the data of high temperature X-ray diffractometry. Key words:crystal structure,phase relation,barium rare earth manganese oxide; rare earths; [全文内容正在添加中] ...Phase Behavior of BaLn2Mn2O7 (Ln=Rare Earth) with a Layered Perovskite Structure Kouji Fujita1,Takeshi Mikami1,Jian Meng2,Naoki Kamegashira1,Noriyoshi Kakuta1,Hirohisa Satoh1 (1.Department......
......
words:metallurgy technology; rare earth concentrate; decomposition reaction; calcium oxide; sodium chloride; [全文内容正在添加中] ...Decomposition Reaction of Mixed Rare Earth Concentrate and Roasted with CaO and NaCl Chen Xudong1,Sun Shuchen1,HU Guangyong1,Wu Wenyuan1,Tu Ganfeng1 (1.School of Material and Metallurgy......
/10.1007/s11771-021-4637-6. 1 Introduction Scandium, a member of rare earth elements (REEs), plays an important role in many strategic fields, such as Al-Sc alloys, lasers, optical, solid oxide fuel cells, advanced catalyst... J. Cent. South Univ. (2021) 28: 679-689 DOI: https://doi.org/10.1007/s11771-021-4637-6 Scandium recovery from ion-adsorption rare earth concentrate with HEHEHP as extractant ZHANG Wei(张伟)1, ZHU Hao......
Mechanism of Cracking Resistance of Hardfacing Specimens of Steel 5CrNiMo Improved by Rare Earth Oxide Ren Xuejun1,Li Da2,Dong Haifeng2,Yang Qingxiang2,Liao Bo2,Liu Ligang2 (1.School of Engineering... on experiment mentioned above, the improved structure and modified inclusion in hardfacing metal with rare earth (RE) oxide were analyzed. The results show that, the hardfacing crack is initiated from the coarse......
of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China) Abstract:A novel solid solution Ce6MoO15 was achieved. Their structure and oxide ionic conductivity were studied.Based on Ce6MoO15, rare earth element substitution on cerium site shows that all resulting oxides enhance the conductivity further, and have high oxide-ion......
Non-ammonia enrichment of rare earth by magnesium oxide from rare earth leaching liquor in magnesium salt systemLi Huang,Guohua Gao,Ran Wu,Qian Zhang,Fuguo Lai,Yanfei Xiao摘 要:oxide precipitant was carried out.It is determined that the rare earth precipitation efficiency is 99.6% and the purity of rare earth concentrates is only 85.89 wt%under the optimum......
Non-ammonia enrichment of rare earth by magnesium oxide from rare earth leaching liquor in magnesium salt systemLi Huang,Guohua Gao,Ran Wu,Qian Zhang,Fuguo Lai,Yanfei Xiao摘 要:oxide precipitant was carried out.It is determined that the rare earth precipitation efficiency is 99.6% and the purity of rare earth concentrates is only 85.89 wt%under the optimum......
Thermodynamics of Modifying Effect of Rare Earth Oxide on Inclusions in Hardfaci ng Metal of Medium-High Carbon Steel 姚枚1,李艳丽1,赵研辉1,杨庆祥1 (1.College of Materials Science and Engineering, Yanshan Universi ty, Qinhuangdao 066004, China) Abstract:The modifying effect of rare earth (RE) oxide on inclusions in hardfacing metals of medium-high carbon steel was investigated by means of thermodynamics......
