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在碳管炉内进行了锆英石热分解的实验研究．讨论了温度、颗粒和添加剂（MgO、CaO等）对锆英石热分解的影响低温区（≤1700℃）的锆英石分解是受化学反应速度控制，表现反应级数为零级，表观活化能为585．0kJ／mol，用动力学方程能较好地解析低温区的锆英石热分解反应，高温区（＞1700℃）主要是SiO（g）等气体通过反应层的扩散来控制，锆英石的热分解也受粒度的影响，颗粒越细，其分解率越大，加入MgO、CaO和Al2O3等能促进锆英石的热分解
In the carbon tube furnace conducted a thermal decomposition of zircon experimental study. The effects of temperature, particles and additives (MgO, CaO, etc.) On the thermal decomposition of zircon are discussed. The decomposition of zircon in the low temperature region (≤1700 ℃) is controlled by the chemical reaction rate, and the reaction order is zero order. The activation energy is 585.0kJ / mol. The kinetic equation can be used to analyze the pyrolysis reaction of zircon in the low temperature region. The high temperature region (> 1700 ℃) is mainly controlled by the diffusion of SiO (g) and other gases through the reaction layer The thermal decomposition of zircon is also affected by the particle size. The finer the particles, the higher the decomposition rate. The addition of MgO, CaO and Al2O3 can promote the thermal decomposition of zircon