Abstract The present work focuses on the mineralogy and the reactivity of clinkers made from the integration of natural fluorapatite in the raw meals with percentages ranging from 0 up to15%. The samples were characterized by infrared spectrometry, X-ray diffraction and microscopy techniques. The distribution of phosphorous and fluorine into clinkers minerals was determined by MEB/EDS mapping. The mineralogical composition was determined by XRD/Rietveld and the samples reactivity followed by isothermal microcalorimetry. It has been found that fluorine stabilizes C 3 S and β-C 2 S which still are found with high levels of P 2 O 5 . Cements obtained from up to 8% natural fluorapatite incorporation still present acceptable properties. Natural fluorapatite could have an important potential as decarbonised source of CaO contributing to decrease the CO 2 emission in cement industry.

中文翻译：

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天然氟磷灰石作为波特兰熟料的原料

摘要 目前的工作重点是在生料中掺入天然氟磷灰石制成的熟料的矿物学和反应性，百分比范围从 0 到 15%。样品通过红外光谱、X 射线衍射和显微技术进行表征。磷和氟在熟料矿物中的分布是通过 MEB/EDS 映射确定的。矿物组成由 XRD/Rietveld 测定，样品反应性由等温微量热法测定。已经发现，氟使仍存在高水平 P 2 O 5 的 C 3 S 和 β-C 2 S 稳定。由高达 8% 的天然氟磷灰石掺入获得的水泥仍具有可接受的性能。