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(2) 4Fe3++3H2O→Fe(OH)3+3H+ ... testing procedure. In addition, it is environmentally significant to carry out this research as the silica fume is the waste from the metal and alloy production industry, while nano- silica can......
电池组分复杂,在机械处理过程中相互干扰,不可能实现各个组分的完全分离.SHIN等[9]对废旧LiCoO2电池放电后通过控制破碎粒径筛分得到不同粒径范围的碎屑,对这些碎屑成分进行分析得出Fe和Al的含量随着碎屑粒径降低而降低,而Co的含量呈现出相反的变化趋势. 在机械破碎分选过程中,为了提高活性物质粉末的回收率,必须通过2次甚至3次破碎降低碎屑粒径的方式实现,但这样势必会增大分选难度,降低分离组分的...为浸出剂,分别对不同类型的正极活性物质进行浸出,结果表明,在最佳条件下,LiCoO2,Li2MnO2,LiNi1/3Co1/3Mn1/3O2以及LiFePO4中锂的浸出率均可达到92%以上,而其他金属(Co,Ni,Mn和Fe等)的浸出率均在20%以下.对浸出过程的动力学进行研究发现,Li的浸出过程受扩散控制,且浸出表观活化能远比其他金属的低,这证实了Li与其他金属相比易于被浸出.PENG等[81......
; 开放科学(资源服务)标识码(OSID) 文章编号:1672-7207(2021)01-0070-16 Advances in Fe-based chemical looping technology for CH4/CO2... in the same reactor and different reactors. Thermodynamic calculation results prove that Fe-based oxygen carriers are promising in the field of chemical looping CH4/CO2 conversion. Different supports......
alloy surface is more conducive to the proliferation of osteoblasts [22]. Table 3 Effects of sintering temperature on porosity, density, and flexural properties of 3DP HAAW composites Table 4......
Zhi-guang, et al. Reduction kinetics of Fe2O3-NiO composites for production of Fe/Ni alloy using hydrogen under non-isothermal conditions[J]. The Chinese Journal of Nonferrous Metals, 2017, 27(1...物的行为及机理进行了大量研究. 1.1.1 热力学研究 目前,气基还原炼铁主要采用H2,CO混合气体作为还原气,H2,CO还原铁氧化物时,热力学平衡图如图1所示[15-16],还原过程分为Fe3O4稳定区,FeO稳定区和金属铁稳定区.反应温度小于570 ℃时,铁氧化物的还原历程为Fe2O3→Fe3O4→ Fe；反应温度大于570 ℃时,铁氧化物的还原历程则为Fe2O3→Fe3O4......
forces from rock blocks. Cutters today can either incorporate hard, fine grained carbides into the matrix of the disc material or apply a hardened coating of alloy powder on the steel substrate......
