...反应物(NH4Cl与MgO)以化学计量比反应、氯化铵的初始浓度为0～1.23 mol/L时符合未反应收缩核模型(Unreacted shrinking core model),且浓度为1.23 mol/L时浸取速率达到最大;浸取速率受表面化学反应控制,活化能为44.74 kJ/mol.
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6.2.1.1 未反应缩核模型(Unreacted Shrinking Core Model) 90-91 6.2.1.2 晶粒模型(Grain Model) 91-92
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These experimental data were analyzed on the basis of unreacted shrinking core model.
进而对这些数据进行了动力学分析。
Without the effect of outer diffusion, the leaching process accorded with unreacted shrinking core model at the stoichiometric .
结果表明，在反应初期为化学反应动力学过程点后才过渡到扩散动力学过程，碳化反应符合缩核反应模型。
On the basis of analyzing the control step for ice conversing to hydrate and introducing the sign function, the unreacted core shrinking model for hydrate formation was proposed.
在对冰转化为水合物控制步骤分析的基础上，引入符号函数并提出一个改进的未反应核收缩模型来描述冰转化为水合物的动力学。
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