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碳酸钾焙烧分解富钾页岩的实验研究
An experimental study of the dissociation process of potassium shale with potash
【摘要】 通过实验探讨了富钾页岩 +碳酸钾体系热分解反应过程。以富钾页岩分解率为目标函数 ,正交实验表明 :最佳焙烧温度为 82 0~ 830℃ ,富钾页岩∶碳酸钾 (质量比 ) =1.0 0∶1.5 1,最佳焙烧时间 6 0min ,生料粒度 6 0~ 80目。并用热重 /差热分析和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 thermal dissociation of the potassium shale-potash system has been experimentally investigated. The orthogonal experiment shows that the optimum reaction temperature is 820~830℃, the mass ratio of potassium shale to potash is 1.00∶1.51, the optimum reaction time is 60min, and the particle size of the raw material is 60~80 mesh. The process was analyzed by thermal analysis of TG and DTA, and the baked materials were analyzed by X-ray diffraction. The mechanism of the reaction is proposed on the basis of the above thermal dynamic data.
【关键词】 富钾页岩;
分解;
碳酸钾;
实验研究;
热力学;
反应机理;
【Key words】 potassium shale; dissociation reaction; potash; experimental study; thermal dynamics; mechanism of reaction;
【Key words】 potassium shale; dissociation reaction; potash; experimental study; thermal dynamics; mechanism of reaction;
【基金】 教育部博士学科点基金资助项目 ( 19990 49114 )
- 【文献出处】 岩石矿物学杂志 ,Acta Petrologica Et Mineralogica , 编辑部邮箱 ,2004年03期
- 【分类号】TQ115
- 【被引频次】7
- 【下载频次】255