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碳酸钾助熔焙烧分解钾长石热力学实验研究
EXPERIMENTAL THERMODYNAMICS ON THE THERMAL DISSOCIATION PROCESS OF K-FELDSPAR WITH FLUX-POTASSIUM CARBONATE
【摘要】 实验探讨了钾长石 +碳酸钾体系热分解反应热力学过程 ,以钾长石分解率为目标函数 ,正交实验表明 :最佳焙烧温度为 86 0℃ ;钾长石 :碳酸钾加入量 =1∶1 2 ;最佳焙烧时间 6 0分钟 ;生料粒度 6 0~ 80目。并用DTA/TG和X粉晶衍射进行分析 ,拟合热力学数据 ,初步分析了反应机理
【Abstract】 The effects of reaction temperatures,potassium carbonate dosage,reaction time and particle size of microcline on the thermal dissociation rate of the system of K feldspar and potassium carbonate are investigated.The orthogonal experiment shows the optimum reaction temperature 860℃;the ration of K feldspar:K 2CO 3=1∶1 2;the optimum reaction time 1 0h;particle size of raw material 60~80 mess.In addition,the process is analyzed by thermal analysis of TG and DTA,and the baked materials were analyzed by X ray diffraction.With the above analysis,the dissociation mechanism is proposed.
- 【文献出处】 中国矿业 ,China Mining Magazine , 编辑部邮箱 ,2004年01期
- 【分类号】O642
- 【被引频次】33
- 【下载频次】402