Effect of mechanical activation on enhancement of carbothermal reduction of nickel slag
作者机构：School of Metallurgical EngineeringXi'an University of Architecture and TechnologyXi'an 710055ShaanxiChina Shaanxi Engineering Research Center of MetallurgicalXi'an 710055ShaanxiChina
出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)
年 卷 期：2020年第27卷第11期
页 面：1311-1321页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：the National Natural Science Foundation of China(No.51774224)for the funding of this research
主 题：Mechanical activation Carbothermal reduction Nickel slag Particle size distribution Mechanical energy storage
摘 要：The effects of mechanical activation on particle size distribution,crystalline phase,morphology,and mechanical energy storage of nickel slag were ***,the direct reduction experiments of mechanically activated nickel slag mixed with reducing agent graphite powder were performed under conditions of 873-1273 K and reduction for 30-70 *** results show that after 12 h of activation,90%of the nickel slag has a particle diameter less than 1.05 pm,and the total energy storage is 1790.4 kJ mol^(-1).With the extension of the mechanical activation duration,the intensity of the dift raction peaks of the main crystalline phases Fe_(2)SiO_(4) and Mg2SiO4 in the nickel slag *** activation is also an effective means to enhance the reduction of nickel *** the extension of the activation time,the reduction effect of the nickel slag and metallization degree *** 12 h of mechanical activation,the nickel slag was reduced at 1273 K for 70 min,and the metallization degree of the reduced product could reach 83.12%.
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