【摘要】 考察了Mg（OH）₂辅助碱性介质对磷酸铵镁降解的媒介作用,解析了磷酸铵镁热解动力学过程。Mg（OH）₂碱促热解为3步降解过程,5 K/min时,其最大吸热峰为390 K;Mg（OH）₂碱促热解动力学降解模型符合自催化降速模型,存在2种以上的降解途径;氨基剥离所需活化能在34.4¹12.9 k J/mol之间,Mg（OH）₂碱促热解动力学方程为:f（α）=k₀（1-α）ⁿ,线性相关系数为0.994,反应级数为6.12。更多还原

【Abstract】 The effect of Mg（ OH）₂on struvite decomposition was investigated,anda thermo-kinetics of struvite decomposition was studied. The results showed that degradation process of struvite with Mg（ OH）₂addition was three steps,and the temperature of the endothermic peak was 390 K（ 5 K/min）. The mechanism of sturvite decomposition with Mg（ OH）₂mediated was an autocatalytic set with a reduction in the reaction rate also,the degradation had more than two pathways,the activation energy of stripping ammonia from struvite was from 34. 4k J/mol to 112. 9 k J/mol. The kinetics equation was f（ α） = k₀（ 1- α）ⁿ,the coefficient of linear correlation was0. 994 and the reaction order was 6. 12.更多还原