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with the apparent activation energy of 80.175 kJ/mol. Moreover, the oxidation rate is closely related to particle size of the concentrate. The smaller the particle size is, the larger the oxidation rate is. Key words: molybdenite; oxidation; roasting; kinetics; particle size 1 Introduction Molybdenum is widely used in materials and chemical industry [1,2]. Molybdenite is the main mineral of molybdenum......
可以看出:模拟值和实测值吻合良好,在一定程度上验证了本文模型的可靠性. 图3 飞灰,循环灰粒径分布 Fig. 3 Particle size distributions of fly ash and circulating ash 图4 床压和空隙率沿炉膛高度分布 Fig. 4 Distribution of bed pressure drop and voidage along...图5可知:除部分过细颗粒可能逃逸出分离器外,其余较大颗粒的停留时间都很长且几乎相等,不易被排出. 图5 灰颗粒炉内停留时间与粒径关系 Fig. 5 Variation of ash particle residence time in furnace with particle size 3.2 分离器效率和水煤浆粒度影响 图6~10所示为在不同分离器效率和初始水煤浆粒度条件下,部分物料平衡相关......
J. Cent. South Univ. (2021) 28: 1797-1812 DOI: https://doi.org/10.1007/s11771-021-4732-8 Inversion of self-potential anomalies caused by simple polarized bodies based on particle swarm optimization... standard particle swarm optimization (SPSO), and then the searching behavior of the particle swarm is discussed and the change of the particles’ distribution during the iteration process is studied......
Effect of particle size on mechanical properties of SiCp/5210 Al metal matrix composite YU Xiao-dong(于晓东), WANG Yang-wei(王扬卫), WANG Fu-chi(王富耻) School of Materials... matrix composites with a high volume fraction (50%) of SiC particles were fabricated by squeeze casting method. The effect of particle size on the mechanical properties of the composites was studied......
Particle swarm optimization computer simulation of Ni clusters ZHOU Ji-cheng(周继承)1, 2, LI Wen-juan(李文娟)2, ZHU Jin-bo(朱金波)2 1. School of Electronic and Information Engineering, Central South... structures and energies of Ni clusters were investigated using particle swarm optimization(PSO) combined with simulated annealing(SA). Sutton-Chen many-body potential was used in describing the interatomic......
Enhancing hydrogen sorption in MgH2 by controlling particle size and contact of Ni catalystsTing-Zhi Si,Xue-Yang Zhang,Jing-Jing Feng,Xiao-Li Ding,Yong-Tao LiSchool of Materials Science... can be explained by the superior catalytic effect of Ni present in composites that highly depends on its particle size and its close contact with MgH2.关键词:......
description The searching steps of solution are shown as follows: 1) Initializing the particle swarm, including the population size N, position of each particle TS(i) and velocity vi etc. Initial particle...J. Cent. South Univ. Technol. (2008) 15: 141-146 DOI: 10.1007/s11771-008-0028-5 An extended particle swarm optimization algorithm based on coarse-grained and fine-grained criteria......
and crushing energy. The crushing energy depends on the particle size, and the particle size distribution is measured after the completion of the test. The particle size distributions of the cassiterite... Received 24 April 2018; accepted 10 June 2019 Abstract: The effects of crushing energy, ore hardness and particle size of cassiterite polymetallic sulphide ore and lead-zinc polymetallic sulphide ore......
Influence of Molten Salt on Luminescent Intensity and Particle Size of Y2O3:Eu3+ Phosphor黄燕,胡运生,腾晓明,龙震,叶红齐,庄卫东摘 要:The Y-Eu oxalate precursor was prepared... of molten salts on particle size and luminescent intensity was studied. The experimental results showed that the complex molten salt (Na2CO3+S+NaCl) was conductive to enhance the luminescent......
;热力学;粒径 中图分类号:TQ131.2 文献标志码:A Effect of particle size on precipitation-dissolution equilibrium of CaF2 JIANG Ke, ZHOU Kang-gen, LI Cheng... and particle size of CaF2 on the precipitation dissolution equilibrium of Ca2+-F--H+-H2O system were investigated, and then the factors influencing the precipitation effect were determined combined......