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A strength reduction method based on double reduction parameters and its applicationYUAN Wei(袁维), BAI Bing(白冰), LI Xiao-chun(李小春), WANG Hai-bin(汪海滨) (State Key Laboratory of Geomechanics and Geotechnical Engineering (Institute of Rock and Soil Mechanics, Chinese Academy of Sciences), Wuhan 430071, China)Abstract:In the traditional strength reduction method, the cohesion and the friction angle......
Engineering Department, University of Concepcion, Concepcion 4070371, Chile Received 17 December 2019; accepted 13 April 2020 Abstract: The direct carbothermic reduction of marmatite in the presence of lime...; high-iron sphalerite; carbothermic reduction; direct reduction; ZnCaOS 1 Introduction Sphalerite is the most abundant zinc- containing mineral and thus, it is the main source for the production......
One-step electrochemical reduction of stibnite concentrate in molten boraxLevent Kartal1,Mehmet Bar?? Daryal2,Güldem Kartal ?ireli2,Servet Timur21. Department of Metallurgical and Materials... a stibnite concentrate(Sb2S3) was performed in one step using a molten salt electrolysis method and borax as an electrolyte. Electrochemical reduction of the stibnite concentrate was performed at 800......
Preparation of TiC powders by carbothermal reduction method in vacuum SEN Wei1, 2, 3, XU Bao-qiang1, 2, YANG Bin1, 2, SUN Hong-yan1, 2, SONG Jian-xun1, 2, WAN He-li1, 2, DAI Yong-nian1, 2 1... by carbothermal reduction of TiO2 in vacuum was investigated by XRD, SEM, XRF and laser particle sizer. Thermodynamic analysis indicates that it is easy to prepare TiC in vacuum and the formation sequence......
Direct patterning of reduced graphene oxide/graphene oxide memristive heterostructures by electron-beam irradiationOlesya O.Kapitanova1,2,Evgeny V.Emelin3,Sergey G.Dorofeev1,Pavel..., Dongguk University-Seoul摘 要:Memristive heterostructures, composed of reduced graphene oxide with different degree of reduction,were demonstrated through......
-based direct reduction of magnetite pellets by damp milling ZHU De-qing1, XU Xiao-feng1, PAN Jian1, OU Ying-qin2, LI Jian1, TANG Yan-yun1 (1. School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China; 2. Zhongye Changtian International Engineering Co.Ltd, Changsha 410001, China) Abstract:The coal-based one-step direct reduction of magnetite concentrate......
In situ synthesized Cu-ZSM-5/cordierite for reduction of NO WANG Jian-cheng1, TIAN Dong1, HAN Li-na1, 2, CHANG Li-ping1, BAO Wei-ren1 1. Key Laboratory of Coal Science and Technology of Ministry... for the selective catalytic reduction (SCR) of NO by NH3 using a simulated diesel exhaust. The results show that the cordierite surface is almost completely covered by ZSM-5 crystals and the crystallization......
kinetics of metallic iron particles in coal-based direct reduction of pre-oxidized nickel slag[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(8): 2218-2226. DOI: 10.11817/j... utilization[J]. Material Guide, 2017, 31(3): 100-105. [2] 李小明, 谢 庚, 赵俊学, 等. 镍渣直接还原提铁及同时制备胶凝材料的研究[J]. 有色金属(冶炼部分), 2015(12): 51-55 LI Xiao-ming, XIE Geng, ZHAO Jun-xue, et al. Study on direct reduction of iron......
diffusion; gas phase diffusion; alkali consumption; direct reduction 金属铝熔点低,密度小,导热性能好,易于加工,广泛应用于国民经济各部门.铝土矿是生产金属铝的主要原料,优质铝土矿资源短缺是我国铝工业面临的主要挑战之一.中国,老挝,几内亚境内蕴藏大量高铁铝土矿资源,国内提出了选矿法[1-4],碱浸法[5-6],熔炼法[7-10... mechanism on ferrous bauxite reduction process HU Wen-tao1, WANG Hua-jun1, SUN Chuan-yao2, JI Chun-ling1, HE Yang1, WANG Cui-ling1 (1. Key Laboratory of High Efficient Mining and Safety of Metal......
Surface Cleaning or Activation?Control of Surface Condition Prior to Thermo-Chemical Heat Treatment Brigitte Haase1,Juan Dong2,Jens Heinlein2 (1.Hochschule Bremerhaven, Dpt. Of Process Engineering... which do not interfere with the thermochemical process, from passive layers which do and must be removed. Whereas some types of passive layers can be removed using conventional cleaning processes......