共搜索到22045条信息，每页显示10条信息，共2205页。用时：0小时0分0秒262毫秒
-thermal reduction process of rare earth concentrate with high-content phosphorus. WU et al[10] investigated the thermal-decomposition mechanisms of the mixed rare earth concentrate containing monazite...]. Chinese Rare Earth, 2003, 24 (4): 39-41. (in Chinese) [10] WU Wen-yuan, SUN Shu-chen, YU Qing-chun. Heat decomposing mechanism of mixed rare earth concentrate composed of bastneasite and monazite [J......
hydrometallurgical processes. Advantageous extraction techniques of rare earths from Baotou mixed rare earth minerals, bastnaesite, and ion-adsorption clays of rare earth deposits have been developed...Technology development for rare earth cleaner hydrometallurgy in ChinaXiao-Wei Huang1,2,Zhi-Qi Long1,2,Liang-Shi Wang1,2,Zong-Yu Feng1,21. National Engineering Research Center for Rare Earth......
% and rare earth is 90.56% in phosphorus concentrate when calcined temperature is 900 ℃, other conditions include: calcined time is 30 min, digestion water volume is 300 ml, digestion time is 20 min.The...Calcination-Digestion-Desliming of Phosphorus Ore Bearing Rare Earth Wang Jing1,Zhang Qin1,Zhang Jie1,Qiu Yue qin1 (1.Guizhou University of Technology, Guiyang 550003, China) Abstract......
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......
Formation cause, composition analysis and comprehensive utilization of rare earth solid wastes PENG Huiqing1,XU Tao1 (1.Resource & Environment College,Wuhan University of Technology,Wuhan 430070,China;2.National Engineering Research Center of Rare Earth Metallurgy & Functional Materials,Baotou 014030,China;3.Baotou Researc) Abstract:Based on practical situation of rare earth industrial chain......
rare earth(RE). The results indicate that, under Cd stress, the dry and fresh weight are increased by both the single element and mixed rare earth treatment, and the fastness of rape is improved.The... the second place, so that the poisonous effect of heavy metal Cd is eased.The mixed rare earth doesn''t alleviate the assimilation of Cd in rape roots, but accelerates the transfer of Cd to the parts......
Adsorption-extraction mechanism of heavy rare earth by Cyanex272-P507 impregnated resin LIAO Chun-fa(廖春发), JIAO Yun-fen(焦芸芬), LIANG Yong(梁 勇), JIANG Ping-guo(姜平国), NIE Hua-ping(聂华平) School... that the molar ratio of Cyanex272-P507 to rare earth in the extraction complex is 3. Chlorine ions do not participate in coordination. The extraction reaction can be expressed as =(where HA represents......
. Key words:rare earths; luminescence property; mixed rare earth complex; m-methylbenzoic acid; 1,10-phenanthroline; [全文内容正在添加中] ...Luminescent Properties of Bi-Rare Earth Complexes with m-methylbenzoic Acid and 1,10-phenanthroline 王瑞芬1,王淑萍1,刘翠格1 (1.Chemistry College, Hebei Normal University, Shijiazhuang 050091, China......
出,使氟的逸出率由19.296%下降为0.315%,相对抑制作用为98.37%. 关键词:混合稀土精矿; 助剂; 焙烧; 固氟; 气相色谱; mixed rare earth concentrate; CaO-NaCl-CaCl_2; roast; fixed fluorine; GC technology; [全文内容正在添加中] ......
, and the addition of some rare earth components, such as La, Pr and Nd also have some influences. Key words:mixed oxides; Rh catalyst; oxygen storage capabilities; rare earths; [全文内容正在添加中] ...Study on Catalysts with Rhodium Loading on Different Cerium-Zirconium Mixed Oxides Zhao Yunkun1,Lu Jun1,Zhang Aimin1,Zhu Zengzan1,Li Bing1 (1.Kunming Sino-Platinum Metals Catalyst Co.,Ltd. Kunming......
