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Trans. Nonferrous Met. Soc. China 23(2013) 1822-1831 Deeply removing lead from Pb-Sn alloy with vacuum distillation Guo-bin JIA1,2, Bin YANG2, Da-chun LIU2 1. General Research Institute... values. Activity coefficients at 800-1300 °C were predicted to supply valuable data for thermodynamic calculation of vacuum distillation. Small-scale and continuous industrialized experiments of vacuum......
Diffusion Carbide Layers, Formed on the Surface of Steel in the Vacuum Titanizing Process KASPRZYCKA Ewa1,NAKONIECZNY Aleksander1,BABUL Tomasz1,SENATORSKI Jan1 (1.Institute of Precision Mechanics, Warsaw, Poland) 摘要:Diffusion layers produced on carbon steel surface in vacuum titanizing process were investigated. Studies of layers thickness, their morphology, titanium, carbon and iron......
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with the theoretical calculation. Key words: ammonium paratungstate; silicon removal; magnesium salt precipitation; solution purification 1 Introduction The tungsten is an important metal in many industrial... goes through purification and conversion stages, finally the APT·4H2O product is obtained by evaporative crystallization [3,7]. However, these conventional methods consume a large amount of auxiliary......
for extracting metal Ag and Cu from high value-added secondary resources by vacuum distillation[J]. Separation and Purification Technology, 2020. [25] YUAN H B, YANG B, XU B Q. Aluminum production... valuable metals from copper dross[J]. Separation and Purification Technology, 2019, 236: 116309. [76] HUANG Z C, YANG B, DAI Y N, et al. Study on vacuum distillation of selenium residue[J]. Yunnan Metallurgy......
Vacuum ultraviolet excited photoluminescence properties of Gd2O2CO3:Eu3+ phosphor WANG Yuhua1,WANG Zhilong1,ZHANG Jiachi1 (1.Department of Material Science, Lanzhou University, Lanzhou 730000, China) Abstract:The Gd2O2CO3:Eu3+ with type-II structure phosphor was successfully synthesized via flux method at 400℃ and their photoluminescence properties in vacuum ultraviolet (VUV) region were......
Vacuum preloading combined electroosmotic strengthening of ultra-soft soilPENG Jie(彭劼)1, 2, XIONG Xiong(熊雄)1, 2, MAHFOUZ A H3, SONG En-run(宋恩润)1, 2(1. Key Laboratory for Geomechanics and Embankment... of Engineering, Jazan University, Jazan 45142, Saudi Arabia)Abstract:To assess the effectiveness of vacuum preloading combined electroosmotic strengthening of ultra-soft soil and study the mechanism......
be separated from each other thoroughly by vacuum distillation, the components of Pb-Sb alloy cannot be separated by vacuum distillation one time. The above analysis results indicate that the validity and reliability of the MIVM in the activities calculation of the components of these alloys and the prediction of the separating effect in vacuum distillation are good. This research provides a good......
Microstructure and properties of Cu-0.6Cr alloy after vacuum continuous casting TSAI De-chang(蔡德昌)1, HWANG Weng-sing(黄文星)1, CHEN Siang-yong(陈向永)2, KANG Jin-sing(康进兴)2, JIANG Cheng-xue(蒋承学)2 1... 2007; accepted 10 September 2007 Abstract: To promote the solution of chromium in copper and the purity of copper-chromium (Cu-Cr) alloy, vacuum continuous casting (VCC) process was employed......
