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; Abstract: The separation techniques of vanadium and molybdenum were summarized, and a new method of removal V(Ⅴ) from Mo(Ⅵ) by adsorption with chelate resin was presented. Nine kinds of chelate resins were used to investigate the adsorbent capability of V(Ⅴ) in ammonium molybdate solution with static method. The test results show that DDAS, CUW and CW-2 resins can easily......
Characterization, crystal structure and luminescence properties of a new europium(III) complex with macrocyclic ligand derived from 2,6-diformyl-4-methylphenol and diethylenetriamine胡学雷1,2,陈中1,邱立1,赵元... (13,27-dimethyl-3,6,9,17,20,23-hexaazatricyclo-[23.3.1.111,15]-triaconta-1(29),2,9,11,13,15(30),16,23,25,27- decaene-29,30-diol-N3, N6, N9, O29, O30)-bis (nitrato-O,O’)-europium (III) nitrate hydrate ([EuL(NO3)2](NO3)·H2O, L......
involves electric charge interaction, hydrogen bonding interaction and complexation, with the proposed formation of an O, O-five membered rings chelate compound. Key words: fine cassiterite; flotation; alkyl hydroxamic acid; chelate 1 Introduction As the most commonly used metal all over the world, tin is usually found as oxide minerals in nature and is extracted from tin-containing ores [1,2......
Synthesis and Characteristic Study on Complexes of Europium(Ⅲ) and Maleic Acid Doped with Non-Fluorescent Ions Ji Qing1,Ni Yaru1,Lu Chunhua1,Shen Qingyue1,Xu Zhongzi1 (1.College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, China) Abstract:Complex of europium (Ⅲ) with maleic acid, and binuclear complexes of europium(Ⅲ)with maleic acid doped with non......
J. Cent. South Univ. (2016) 23: 1058-1065 DOI: 10.1007/s11771-016-0355-x Flotation of a new chelate collector on fine refractory iron ore-containing carbonate WANG Ting-xia(王婷霞)1, ZHU Yi-min(朱一民)2... chelate collector W-2 was synthesized. At 30 °C, condition flotation tests on mixed magnetic concentrate of Donganshan sintering plant established the best reagent system. With the optimum reagent system......
Synthesis and Characterization of Europium Doped CeriaNishant.B.Shah,Biswajit.S.Chakrabarty摘 要:Europium doped CeO2 was synthesized via combustion synthesis method. The powders were found to be in a single phase. The average crystallite size was found to be about 30nm. It was revealed from photoluminescence spectra that there was an excitation band......
Crystal Structure and Properties of Europium m-Chlorobenzoate Complex with 1,10-Phenanthroline 张建军1,王淑萍2,王瑞芬2 (1.Experimental Center, Hebei Normal University, Shijiazhuang 050016, China;2.College of Chemistry, Hebei Normal University, Shijiazhuang 050091, China) Abstract:A europium m-chlorobenzoate complex with 1,10-phenanthroline [Eu(m-ClBA)3(phen)]2 single crystal, where m-ClBA=m......
Fe–EBT Chelate Complex: A Novel Mean for Growth of α-FeOOH and γ-Fe2O3 NanostructuresGajanan Pandey摘 要:Acicular goethite(a-Fe OOH) and worm-like maghamite(γ-Fe2O3) nanostructures have been prepared adopting a novel route, using Na2[Fe(HL)2(H2O)2] chelate complex in alkaline medium. It is found that concentration of hydrated Fe(III) ions increased......
Van Vleck paramagnetism of europium oxyhydroxideHiroaki Samata1,Naoki Wada1,Tadashi C.Ozawa21. Graduate School of Maritime Sciences, Kobe University, Fukaeminami,Higashinada, Kobe, Hyogo 658-0022, Japan2. International Center for Materials Nanoarchitectonics, National Institute for Materials Science,Namiki, Tsukuba, Ibaraki 305-0044, Japan摘 要:Europium......
