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- W3211876064 abstract "基于采用较高液固比(20:1)的实验条件,避免了因硅酸钠与铝酸钠反应形成水合铝硅酸钠(钠硅渣),可将氧化铝熟料溶出二次反应动力学过程分为SiO2进入铝酸钠溶液和Al2O3损失两个动力学过程,详细研究了SiO2进入铝酸钠溶液过程的动力学行为.通过选择合适的动力学模型对实验数据进行处理,获得了该过程的动力学方程.方程表明,该过程的表观活化能较小,仅为24.86kJ·mol-1,说明其过程发生需要突破的活化能能垒较小,相应反应较易发生,其动力学机理与表面化学反应有关,也与扩散有关.铝酸钠溶液中Al2O3质量浓度对过程的影响远远大于铝酸钠溶液中Na2CO3质量浓度和NaOH质量浓度的影响,因此认为熟料溶出过程中,导致SiO2进入铝酸钠溶液的原因主要是熟料中的硅酸钙与NaAl(OH)4相互作用." @default.
- W3211876064 created "2021-11-22" @default.
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- W3211876064 date "2009-01-01" @default.
- W3211876064 modified "2023-09-24" @default.
- W3211876064 title "氧化铝熟料溶出二次反应过程SiO 2 进入铝酸钠溶液的动力学机理" @default.
- W3211876064 doi "https://doi.org/10.13374/j.issn1001-053x.2009.11.030" @default.
- W3211876064 hasPublicationYear "2009" @default.
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