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. Studies on concentration and direct reduction of the Ramim iron ore[J]. International Journal of Mineral Processing, 1983, 11(2): 115-130. ______________________________ 基金项目:国家杰出青年科学基金资助项目(50725416) 收稿...码:A Effects of sodium-salt on Al-Fe separation by reduction roasting for high-aluminum content limonite JIANG Tao, LIU Mu-dan, LI Guang-hui, SUN Na, ZENG Jing-hua, QIU Guan-zhou (School of Minerals......
of complex oxysalt minerals[J]. Journal of Chemical Industry and Engineering, 2010, 61(3): 544-550. [19] WATANABE T, ONO S, ARAI H, MATSUMORI T. Direct reduction of garnierite ore for production...;钠盐;还原焙烧;镍铁 中图分类号:TF815 文献标志码:A Reduction roasting-magnetic separation mechanisms of nickelferous laterite ore in presence of sodium salts LI Guang-hui, RAO Ming-jun, JIANG......
Reinforcement strength reduction in FEM for mechanically stabilized earth structuresXUE Jian-feng(薛剑峰)1, 2, CHEN Jian-feng(陈建峰)1(1. Key Laboratory of Geotechnical and Underground Engineering... stabilized earth (MSE) structures can be analyzed either using limit equilibrium method (LEM) or strength reduction method (SRM) in finite element/difference method. In LEM, the strengths......
J. Cent. South Univ. (2012) 19: 424-432 DOI: 10.1007/s11771-012-1021-6 Multiple linear system techniques for 3D finite element method modeling of direct current resistivity LI Chang-wei(李长伟)1, 2... finite element method (FEM) modeling of direct current (DC) resistivity were discussed. A global stiff matrix is assembled and stored in two parts separately. One part is associated with the volume......
. Characteristics of laterite resource and analysis on its pyrometallurgy process[J]. Ferro-Alloys, 2007, 38(6): 18-21. [7] WATANABE T, ONO S, ARAI H, MATSUMORI T. Direct reduction of garnierite ore... for preparing ferronickel materials from laterite ore by reduction roasting-magnetic separation LI Guang-hui, RAO Ming-jun, JIANG Tao, HUANG Qing-qing, SHI Tang-ming, ZHANG Yuan-bo (School......
J. Cent. South Univ. (2020) 27: 3667-3683 DOI: https://doi.org/10.1007/s11771-020-4562-0 Elbow precision machining technology by abrasive flow based on direct Monte Carlo method LI Jun-ye(李俊烨), ZHU... by combining theory, numerical and experimental methods. The direct simulation Monte Carlo (DSMC) method and the finite element analysis method were combined to reveal the random collision of particles......
J. Cent. South Univ. (2021) 28: 1305-1315 DOI: https://doi.org/10.1007/s11771-021-4698-6 Porous layered La0.6Sr0.4Co0.2Fe0.8O3 perovskite with enhanced catalytic activities for oxygen reduction XU... sol-gel method (5.08 m2/g). The oxygen reduction reaction activity of the oxide in 0.1 mol/L KOH solution was studied using a rotating ring-disk electrode. In the tests, the initial potential of 0.88......
Preparation of copper nanoparticles by chemical reduction method using potassium borohydride ZHANG Qiu-li(张秋利)1, YANG Zhi-mao(杨志懋)2, DING Bing-jun(丁秉钧)2, LAN Xin-zhe(兰新哲)1, GUO Ying-juan(郭莹娟)1... by chemical reduction method using potassium borohydride as reducing agent. The effects of reactant ratio, concentration of CuSO4, reaction temperature, and dispersant on the size of product and conversion......
Trans. Nonferrous Met. Soc. China 22(2012) s813-s819 Process analysis of direct laser melting to fabricate layered hybrid beads Jeong-hwan JANG1, Sung-min MUN1, Tae-hyun KIM1, Young-hoon MOON1 School...; surface roughness; direct laser melting process; layered hybrid beads 1 Introduction Rapid prototyping has used to form near-net-shape objects of resin, ceramics, metals and their composites directly......
and Steel, Zhangjiagang 215625, China Received 17 April 2013; accepted 7 May 2013 Abstract: Sn3.5Ag (mass fraction, %) nanoparticles were synthesized by an improved chemical reduction method at room.... The larger the mass ratio of the surfactant to the precursor is, the smaller the particle size is. Key words: Sn3.5Ag; size control; nanoparticles; chemical reduction method 1 Introduction Nano-sized......