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; 文献标志码:A Growth behavior of metal iron grain during direct reduction of low grade hematite ZHU De-qing1, XIAO Yong-zhong1, 2, CHUN Tie-jun1, PAN Jian1 (1... iron grain of low grade hematite during coal based direct reduction was tested using optical microscope and Leica image analysis software. The growth behavior of metal iron grain was investigated using......
of Complex Non-ferrous Metal Resources, Kunming University of Science and Technology, Kunming 650093, China; 2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China; 3. Technology Center, Yunnan Metallurgical Group, Kunming 650031, China) Abstract: Based on the thermodynamic data for related pure substances, the relation of (nCl/nH......
Trans. Nonferrous Met. Soc. China 23(2013) 2422-2430 Synthesis of nickel ferrite precursors from low grade nickel matte Li-hua HE1, Zhong-wei ZHAO1, You-xin ZHANG1,2 1. School of Metallurgy...(C2O4)3·6H2O were obtained via co-precipitation method with low grade nickel matte as the raw material. Thermodynamic analysis of NiCl2-FeCl2-(NH4)2C2O4-H2O system for precipitation identified......
Dielectric properties of doped silicon carbide powder by thermal diffusion SU Xiao-lei(苏晓磊), LI Zhi-min(李智敏), LUO Fa(罗 发), WANG Xiao-yan(王晓艳), ZHU Dong-mei(朱冬梅), ZHOU Wan-cheng(周万城) State Key... the aluminum and nitrogen atoms affect the bond of silicon and carbon. The dielectric real part (ε′) and imaginary part (ε") of the nitrogen-doped sample are higher than those of the other samples......
Article ID: 1003-6326(2005)02-0296-04 Effect of silicon on oxidation of Ni-15Al alloy WU Ying(吴 莹) , NIU Yan(牛 焱), WU Wei-tao() (State Key Laboratory for Corrosion and Protection...; 1 INTRODUCTION Chromium, aluminum, and silicon can......
；壳聚糖；离子印迹；低品位铜矿；纯化 中图分类号:TF 804.3 文献标志码:A Purification of copper from low grade copper ores with Cu2+ ions-imprinted attapulgite/chitosan composite materials SHI Ying-ying..., Huaiyin Institute of Technology, Huai’an 223003, China) Abstract: The enrichment and purification of copper from acid leaching solution of low grade copper ore by Cu2+ ions-imprinted attapulgite......
磁场退火对无取向硅钢磁性能的影响麻永林1,樊振海1,邢淑清1,赵莉萍1,支歆1(1.内蒙古自治区包头市内蒙古科技大学材料与冶金学院)摘 要:为了研究退火温度,磁场强度,磁场方向及退火时间等对低牌号无取向硅钢磁性能和组织的影响,在正交试验的基础上,对无取向硅钢进行不同条件的退火处理,通过对磁性能数据的正交分析,优选出最佳的工艺参数.研究结果表明:退火温度和磁场强度是影响试验钢比饱和磁化强度的主要因素,磁场强度与退火时间对剩余磁化强度也有显著的影响.当加热温度在800℃,施加磁场强度为3 T时,调整施加磁场的方向与......
; Dynamic optimization of cutoff grade in underground metal mining GU Xiao-wei(顾晓薇), WANG Qing(王青... the overall economic gain from a metal mine operation, selection of cutoff grades must consider two important aspects: the time value of money and the spatial variation of the grade distribution......
J. Cent. South Univ. (2020) 27: 2479-2493 DOI: https://doi.org/10.1007/s11771-020-4474-z Improving performance of open-pit mine production scheduling problem under grade uncertainty by hybrid... of grade uncertainty. It is suggested to carry out the ALR method on the LTPS problem to improve its performance and accelerate the convergence. Moreover, the Lagrangian coefficients are updated......
Bo-lin, MIAO Sheng-jun, GAO Qian, et al. Study on solidification characteristics of metallurgical slag binder materials for ultra-fine tailings backfill[J]. The Chinese Journal of Nonferrous Metals... pillar for transition from open-pit to underground mining in Gushan Iron Mine[J]. Mining and Metallurgical Engineering, 2019, 39(2): 24-29. [5] 梁 峰, 高 谦, 丛革臣, 等. 思山岭铁矿超细全尾砂固结粉充填胶凝材料研究[J]. 金属矿山, 2019(8......
