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: the liquid to solid ratio (mL/g) of 5:1, the leaching temperature of 453 K, the retention time of 2 h, the initial sulfuric acid concentration of 0.74 mol/L, the oxygen partial pressure of 0.7 MPa... On the basis of leaching tests, the pressure leaching technique can be determined as follows: the liquid to solid ratio of 5:1, the leaching temperature of 453 K, the initial sulfuric acid concentration......
Pressure acid leaching of black shale for extraction of vanadium LI Min-ting(李旻廷), WEI Chang(魏 昶), FAN Gang(樊 刚), LI Cun-xiong(李存兄),DENG Zhi-gan(邓志敢), LI Xin-bin(李兴彬) Faculty of Metallurgical... ____________________________________________________________________________________________ Abstract: Extraction of vanadium from black shale was attempted in pressure acid leaching. The chemical components of the sample obtained from Guizhou Province of China......
SUPERPLASTICITY OF A SiCw/2024 Al COMPOSITE MADE BY PRESSURE INFILTRATION L.Cai1,X.J.Xu1,W.Wang1 (1.JiangsuUniversity of Science and Technology, Zhenjiang 212013, China) Abstract:The superplastic characteristics of the β-SiC whisker reinforced 2024 aluminum com-posite, fabricated by pressure infiltration and hot-rolling after extrusion, were inves-tigated. The composite has a fine grain size......
J. Cent. South Univ. (2012) 19: 2578-2583 DOI: 10.1007/s11771-012-1313-x Characterizing pressure fluctuation into single-loop oscillating heat pipe PARK Yong-ho1, Md. Riyad Tanshen2, Md. J..., Cheondaegukchi-Gil 38, Tongyeong, Gyeongnam, 650-160, Korea ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The pressure characteristics inside single loop oscillating heat......
Effect of specific pressure on microstructure and mechanical properties of squeeze casting ZA27 alloy LI Run-xia(李润霞), LI Rong-de(李荣德), BAI Yan-hua(白彦华), QU Ying-dong(曲迎东), YUAN Xiao-guang(袁晓光...; Abstract: The effect of specific pressure......
J. Cent. South Univ. (2017) 24: 1465-1475 DOI: 10.1007/s11771-017-3550-5 Effect of ambient wind on pressure wave generated by high-speed train entering a tunnel ZHOU Xi-sai(周细赛)1, 2, LIU Tang-hong(刘...-dimensional, unsteady N-S equations and k-ε turbulence model, the effect of ambient wind on the pressure wave generated by a high-speed train entering a tunnel was studied via numerical simulation......
100088, China)Abstract:The application of microwave irradiation for pretreatment of copper anode slime with high nickel content prior to pressure sulfuric acid leaching has been proposed. The microwave...Intensification of pretreatment and pressure leaching of copper anode slime by microwave radiationYANG Hong-ying(杨洪英)1, MA Zhi-yuan(马致远)1, 2, HUANG Song-tao(黄松涛)2, LV Yang(吕阳)1, XIONG Liu(熊柳)1(1......
Simulation and experimental study of high pressure switching expansion reduction considering real gas effectLUO Yu-xi(罗语溪)1, ZHANG Yan-jun(张彦军)1,2, GAO Yu-bao(高玉宝)1, WANG Xuan-yin(王宣银)3, XU Zhi-peng...) uses a switch valve instead of the throttle valve to realize electronically controlled pressure reduction for high pressure pneumatics. A comprehensive and interactive pneumatic simulation model......
Deformation behavior of sheet metals and viscous medium in viscous pressure bulging process with back viscous pressureWANG Zhong-jin(王忠金), LIU Jian-guang(刘建光), WANG Zhong-ren(王仲仁), LV Jun (吕 军)(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:Viscous pressure forming (VPF) is a newly developed flexible sheet metal forming process......
J. Cent. South Univ. Technol. (2009) 16: 0653-0657 DOI: 10.1007/s11771-009-0108-1 Estimation of compaction grouting pressure in strain softening soils YANG Xiao-li(杨小礼), ZOU Jin-feng(邹金锋...; Abstract: A new method was proposed to predict the limited compaction grouting pressure for the soft soils. Theoretical basis......
