中文摘要：

试验研究了钾长石-硫酸钙-碳酸钙体系[n（KAS6）：n（CaSO4）：n（CaCO3）=1：1：14]加入脱硫灰渣组分脱硫时的热分解反应动力学。结果表明：改变反应温度、脱硫灰渣组分和钾长石粒径，热分解过程均受金斯特林格模型固膜扩散控制；反应速率与钾长石初始粒径的平方成反比；添加脱硫灰渣组分有利于降低表观活化能，有利于利用脱硫灰渣热分解钾长石生产钾肥。

英文摘要：

An experimental study is carried out of the thermal decomposition reaction kinetics of the system potash feldspar-calcium sulfate-calcium carbonate [n（KAS6） ：n（CaSO4） ：n（ CaCO3） = 1 ： 1 ： 14 ] during desulfurization with the addition of desulfurized ash component. The results show that, with a change in the reaction temperature and the desulfurized ash component and potash feldspar particle size, the thermal decomposition process is always governed by the Kinstlinger model solid membrane dispersion ; the reaction rate is inversely proportional to the square of the initial particle size of the potash feldspar; and the addition of the desulfurized ash component is beneficial to the decrease in apparent activation energy and to the thermal decomposition of potash feldspar by the desulfurized ash for the production of potassic fertilizer.