| 碳酸钙热解的“扩展温区效应”——非等温热重法研究MnO_2、CuO、Cr_2O_3对CaCO_3热解的影响 |
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| 引用本文： | 刘华卿,戚名璧.碳酸钙热解的“扩展温区效应”——非等温热重法研究MnO_2、CuO、Cr_2O_3对CaCO_3热解的影响[J].江西师范大学学报(自然科学版),1991(3). |
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| 作者姓名： | 刘华卿 戚名璧 |
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| 作者单位： | 江西师范大学化学系，中国科学院化学研究所 |
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| 摘 要： | 本文采用非等温热重(TG)研究了MnO_2、CuO、Cr_2O_3对CaCO_3热解的影响.TG曲线表明:在CaCO_3中分别掺入上述物质后,CaCO_3热解的起始温度升高,反应温度范围向高温方向扩展,导致CaCO_3热解更完全.本文称之为“CaCO_3热解的扩展温区效应”.
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| 关 键 词： | 热分析 碳酸钙热解 |
The "ERTR" Effect of Calcination of Calcium Carbonatee --studying the effect of manganese dioxide,copper oxide and chromium oxide on thermal decomposition of calcium carbonate by non-isothermal TG |
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| Liu Huaqing Qi Mingbi.The "ERTR" Effect of Calcination of Calcium Carbonatee --studying the effect of manganese dioxide,copper oxide and chromium oxide on thermal decomposition of calcium carbonate by non-isothermal TG[J].Journal of Jiangxi Normal University (Natural Sciences Edition),1991(3). |
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| Authors: | Liu Huaqing Qi Mingbi |
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| Institution: | Liu Huaqing Qi Mingbi (Dept. of Chem.) (Institute of Chem. CAS) |
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| Abstract: | In this paper,the effect of manganese dioxide(MnO_2),copper oxide(CuO) and chromium oxide(Cr_2O_3) on the thermal decomposition of calcium carbonate(CaCO_3)has been studied by non-isothermal TG method respectively. TG curves have shown that the addition of MnO_2(CuO or Cr_2O_3) to CaCO_3 not only causes the increase in the initial reaction temperature of thermal decomposition of CaCO_3,but also extends the reaction temperature range of that to higher temperature direction. Consequently,it results in the significant increase in the calcination rate of CaCO_3. This phenomenon is called the extended reaction temperature range effect(i. e. ERTR effect)of thermal decomposition of calcium carbonate. |
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| Keywords: | thermal analysis CaCO_3 |
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