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Effect of Calcium on the Vanadium Extraction from High Calcium Type Stone Coal包申旭1,2,LIANG Liang1,张一敏1,2,HAN Shihua1,HU Yangjia11. College of Resources and Environmental Engineering, Wuhan University... by water and dilute acid separately after being roasted with different dosage of Na Cl. The water leaching rate of vanadium(WLRV) was low and only 26.8% of vanadium can be leached by water when 4% Na Cl......
Energy transfer from Ce~(3+) to Tb~(3+) and Eu~(3+) in zinc phosphate glasses JIANG Sha1,ZHOU Xianju1,MA Chonggeng1 (1.College of Mathematics and Physics,Chongqing University of Post and Telecommunications,Chongqing 400065,China) Key words:energy transfer; zinc phosphate glass; Ce~(3+); Tb~(3+); Eu~(3+); rare earths; [全文内容正在添加中] ......
Octacalcium Phosphate Fiber Synthesized by Homogeneous Precipitation Method王小俊1,方立明1,21. School of Materials Science and Engineering, South China University of Technology2. National Engineering Research Center for Human Tissue Restoration and Function Reconstruction, South China University of Technology摘 要:Calcium phosphate fiber was synthesized......
Valency Study of Vanadium in Stone Coal of Southern ChinaXu Guozhen;Ge Nai’e;Chen Jianping;Shen Shaobo Chinese University of Geosciences,Beijing 100083摘 要:<正> Vanadium-bearing stone coal is a new resource of vanadium. V in stone coal mainly exists in three oxidation states: 7.84%V(Ⅲ), 72.08% Ⅴ(Ⅳ) and 20.08% Ⅴ(Ⅴ). The change and distribution......
Sonochemical synthesis and photoluminescence properties of rare-earth phosphate core/shell nanorods余文媛,李冠涞,周利Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education,Department of Physics,Wuhan University摘 要:Rare earth phosphate core/shell nanostructures were synthesized via facile ultrasound irradiation method.XRD and TEM......
A Facile Synthesis of Cerium Phosphate Nanofiber by Solution-solid MethodMingyun Guan, Jianhua Sun,Tongming Shang, Quanfa Zhou,Jianting Han and Aiqin Ji Jiangsu Key Laboratory of Precious Metals... to construct cerium phosphate (CePO4) nanofibers. Tetraphosphoric acid formed the condensed linear polyphosphate (PnO3n+1)(n+2)- before reacting with cerium carbonate (Ce2(CO3)3) powder, which......
Sonochemical synthesis and photoluminescence properties of rare-earth phosphate core/shell nanorods余文媛,李冠涞,周利Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education,Department of Physics,Wuhan University摘 要:Rare earth phosphate core/shell nanostructures were synthesized via facile ultrasound irradiation method.XRD and TEM......
Erbium Doped Phosphate Glass For Optical Waveguide Amplifier S.Q.Man1,E.Y.B.Pun1,R.S.F.Wong1,P.S.Chung1 (1.Department of Electronic EngineeringCity University of Hong Kong Tat Chee Avenue, KowloonHong Kong) 摘要: Erbium (Er3+) doped phosphate glasses was prepared and the optical properties of these glasses were investigated. The emission parameters were calculated using the Judd-Ofelt treatment......
到98.68%以上. 关键词:石煤；钒；萃取；HBL101 中图分类号:TF841.1 文献标志码:A Extraction of vanadium from... University, Changsha 410083, China) Abstract: A new extractant HBL101 was used to directly extract vanadium from high acid leach solution of stone coal. The effects of acidity and potential of feed, time......
Thermodynamic studies on gas-based reduction of vanadium titano-magnetite pelletsJun-wei Chen,Yang Jiao,Xi-dong Wang摘 要:Numerous studies have focused on the reduction thermodynamics of ordinary iron ore; by contrast, the literature contains few thermodynamic studies on the gas-based reduction of vanadium titano-magnetite(VTM) in mixed atmospheres of H2......
