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Leaching ion adsorption rare earth by aluminum sulfate for increasing efficiency and lowering the environmental impactLifen Yang1,Cuicui Li1,Dashan Wang1,Fengyang Li1,Yanzhu Liu1,Xuezhen Zhou1,Yongxiu Li11. Research Center for Rare Earths & Nano/Micro Functional Materials, Nanchang University摘 要:The leaching efficiency(LE) of ion adsorption rare earth......
J. Cent. South Univ. (2020) 27: 1416-1423 DOI: https://doi.org/10.1007/s11771-020-4377-z Well-controlled stirring tank leaching to improve bio-oxidation efficiency of a high sulfur refractory gold... efficiency. Results show that bio-oxidation pretreatment can greatly improve the gold recovery rate of high-sulfur refractory gold concentrate, and at the optimum pH 1.3 in this study, compared......
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of "equivalent current density"was proposed for evaluating the inhomogeneous electromagnetic pinch force, and themono-component removal efficiency and the overall removal efficiency of inclusionwere formulated... phenomenon. Under usual condition, a re-moval efficiency of 52% for 10μm inclusion or more than 92% for 20μm inclusioncan be achieved by imposing a current density of 3× 106A/m2 in a fiat pipe. Key words......
(OH)3 precipitation efficiency and induction period of bayerite were investigated. The results indicate that the neutralization curve of the artificial chromate alkali solutions shows three distinct...: chromate alkali solutions; bayerite; carbonization; crystallization; precipitation efficiency 1 Introduction Chromium compounds have attracted considerable interest because of their wide application......
J. Cent. South Univ. (2012) 19: 1377-1382 DOI: 10.1007/s11771-012-1153-8 Energy efficiency performance of multi-energy district heating and hot water supply system JIN Nan(金楠), ZHAO Jing(赵靖), ZHU... be stored in shallow soil for the GCHP utilization. The system can use fossil fuel thermal energy by two natural gas boilers (NGB) to assist in heating and making hot water. The heating energy efficiency......
to improve the efficiency of air to ground target localization and achieve the effect of a time measurement and multi-point positioning, a multi-target localization algorithm on electro-optical... and height of target point in the image can be calculated. Tested by experiments, multi-target localization can not only improve the efficiency, but also satisfy certain precision compared......
Current Efficiency of Low Temperature Aluminum Electrolysis Studied by Neural NetworkHuimin Lu; Zuxian Qiu; Keming Fang; Fuming Wang; Yanruo Hong( Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China)( Department of Nonferrous Metallurgy, Northeastern University, Shenyang 110006, China)摘 要: and longitudinal internal cylindrical grinding using grinding wheels with zone-diversified structure.Key words:single-pass grinding; grinding efficiency, grinding wheels, surface roughness......A review on single-pass grinding processes
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来源: 《中南大学学报(英文版)2013年第6期》——Krzysztof NADOLNY
on electrochemical performance of Mg-Hg-Ga anodes was investigated by potentiodynamic polarization, galvanostatic test, electrochemical impedance spectroscopy, anodic efficiency test and chemical.... The electrochemical activity of alloys declines with the increase of La content, while the corrosion resistance and anodic efficiency firstly reduce and then increase. The H2 evolution rate of Mg-Hg-Ga-2%La......