| 弱还原气氛下淮南煤灰矿物质特性研究 |
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| 引用本文： | 丰芸,李寒旭,丁立明.弱还原气氛下淮南煤灰矿物质特性研究[J].安徽理工大学学报(自然科学版),2009,29(1). |
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| 作者姓名： | 丰芸 李寒旭 丁立明 |
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| 作者单位： | 安徽理工大学化学工程学院,安徽,淮南,232001 |
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| 摘 要： | 对淮南煤在弱还原气氛下的矿物质特性进行实验研究，用X-射线衍射和红外光谱分析不同温度下煤灰矿物组成变化。结果表明：淮南煤中主要晶体矿物有高岭石、石英、方解石、黄铁矿等，高岭石类矿物含量越高，煤灰熔点越高；方解石和黄铁矿含量越高，煤灰熔点越低。煤灰中主要晶体矿物有石英、硬石膏、赤铁矿等，硬石膏和赤铁矿含量越高煤灰熔点越低。随着温度的升高，煤灰中石英、硬石膏、赤铁矿等结晶矿物含量逐渐减少，生成新的矿物质，莫来石的生成是导致淮南煤灰熔点高的主要原因，钙长石起到降低灰熔点的作用。
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| 关 键 词： | 淮南煤灰 矿物质特性 红外光谱 X-射线衍射 |
Study on Mineral Features in Coal Ash of Huainan in Weak Reducing Atmosphere |
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| FENG Yun,LI Han-xu,DING Li-ming.Study on Mineral Features in Coal Ash of Huainan in Weak Reducing Atmosphere[J].Journal of Anhui University of Science and Technology:Natural Science,2009,29(1). |
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| Authors: | FENG Yun LI Han-xu DING Li-ming |
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| Institution: | School of Chemical Engineering;Anhui University of Science and Technology;Huainan Anhui 232001;China |
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| Abstract: | Mineral features of Huainan coal ash in weak reducing atmosphere was studied.The mineral component variation of the ash at different temperatures was analyzed with X-ray diffraction(XRD) and Infrared Spectrum(FTIR).The results showed that coal ashes of Huainan generally contain kaolinite,quartz,calcite and pyrite.Kaolinite in coal increases ash melting temperature. Calcite and pyrite in coal reduce ash melting temperature.Crystalloid minerals in the coal ashes generally are quartz,hematite and anhydrite.The... |
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