【摘要】 本文对拜耳法铝酸钠溶液种分附聚过程进行了研究 ,采用降温方式 ,利用最小二乘法求出附聚动力学方程为dC/dt=3 .14× 10 1 0 ×exp( -88.14× 10 3/RT)× (C -Ce) 2 ,表观活化能为 88.14kJ/mol。求得了不同温度下的分解速率常数能较好地符合阿仑尼乌斯公式更多还原

【Abstract】 The paper describes the agglomeration process of crystalline particles during precipitation in sodium aluminate solution of Bayer process.It derives aggglomeration dynamics formula dC/dt=3.4×10¹⁰×exp（-88.14×10³/RT）×（C-Ce）² with method of least squares in cooling down way.The aggarent activation energy is 88.14kJ/mol.The constant of precipitation rate derived under different temperatures can well match with Arrhenius formula.更多还原