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be also removed effectively under certain conditions. Key words: vacuum distillation; sulphur deleadization; refined bismuth; high-purity bismuth CLC number: TF121 Document code: A 1 INTRODUCTION...Preparation of high-purity bismuth by sulphur deleadization in vacuum distillation XIONG Li-zhi(熊利芝)1, HE Ze-qiang(何则强)1, LIU Wen-ping(刘文萍)1, MA Cheng-jin(麻成金)1, DAI Yong-nian(戴永年)2 (1. College......
with high purity reagents and twice-distilled water. All bismuth solutions consisted of 0.0001mol/L Bi(NO3)3·5H2O, and using 0.1mol/L HClO4 as a supporting electrolyte, pH 1.5. Tellurium solutions were all... of cycles, as it is consistent with a layer by layer growth mode. Key words: thermoelectric material; ECALE; UPD; bismuth telluride; thin film CLC number: TN377 Document code: A
)-TBP complexes can be precipitated as Bi2(C2O4)3·7H2O at ambient temperature. This Bi2(C2O4)3·7H2O can be further decomposed to prepare the high-purity Bi2O3 powders. Fig. 10 XRD pattern of stripping...J. Cent. South Univ. (2016) 23: 3085-3091 DOI: 10.1007/s11771-016-3373-9 Solvent extraction mechanism and precipitation stripping of bismuth (III) in hydrochloric acid medium by tributyl phosphate......
2.1 Materials The bismuth oxide used in this experiment was provided by Jingtang Bismuth Company, Hunan Province, China. The chemical composition is listed in Table 1. The sample is a high-purity...%, and the total amount of impurity is below 0.1%. This illustrates that the product has a high purity and less impurity enters the product in preparation process. Table 2 Chemical composition of bismuth......
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Flow stress behavior of high-purity Al-Cu-Mg alloy and microstructure evolutionLI Li(李立)1, LI Hui-zhong(李慧中)1, 2, 3, LIANG Xiao-peng(梁霄鹏)2, HUANG Lan(黄岚)2, HONG Tao(洪涛)4(1. School of Materials... behavior of high-purity Al-Cu-Mg alloy under hot deformation conditions was studied by Gleeble-1500, with the deformation temperature range from 300 to 500 °C and the strain rate range from 0.01 to 10 s-1......
technologies. Bismuth-based pyrochlores exhibit well-known high-frequency dielectric properties for multilayer capacitor. Group of pyrochlore structured compounds is of general formula A2B2O7 (where A is trivalent or bivalent cations and B is quadrivalent and quinquevalent cations). As a member of the pyrochlore family of compound, bismuth zinc niobate is a typical high frequency dielectrics with high......
; resistance heating; carbon; reducing-evaporation 1 Introduction Bismuth oxide has been widely used in high- temperature superconductors, photoelectric materials, electronic ceramic powders and catalysts... has shortened process, but special apparatus requires high cost; the second method also has short process, but bismuth can not be completely oxidized, the nozzle life is limited, and the particles......
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Pressure leaching of bismuth sulfide concentrate containing molybdenum and tungsten in alkaline solutionZHANG Du-chao(张杜超), YANG Tian-zu(杨天足), LIU Wei-feng(刘伟锋), WU Jiang-hua(吴江华)(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)Abstract:The leaching results of bismuth sulfide concentrate containing molybdenum and tungsten in air-H2O2-NaOH system......
