| 京西煤系高岭土中铁、钛赋存状态研究 |
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| 引用本文：杨晓杰,刘冬明,李桂刚,陈开惠.2006.京西煤系高岭土中铁、钛赋存状态研究[J].地球学报,27(2):141-144. |
| DOI：10.3975/cagsb.2006.02.07 |
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| 基金项目:北京市自然科学基金项目(编号:3042013) |
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| 中文摘要:本文以分析电子显微术为主要技术手段,对京西煤系高岭土中铁、钛物相的赋存状态进行了深入研究。结果表明,京西高岭土精矿中含有少量锐钛矿和微量针铁矿及铁钛混合物相;结构铁是京西煤系高岭土中铁的主要存在形式,其中也含有微量结构钛。四次配位于硅氧四面体中的Fe3 和存在于铝氧八面体中六配位的Fe3 和Fe2 是结构铁的三种占位形式。研究结果对于深化煤系高岭土的矿物学研究和京西煤系高岭土的开发利用具有重要理论意义和指导意义。 |
| 中文关键词:高岭土 分析电子显微术 铁、钛赋存状态 |
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| The Modes of Occurrence of Fe and Ti in Kaolin of West Beijing |
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| Abstract:The modes of occurrence of Fe and Ti in kaolin of west Beijing were studied in detail by AEM and Mossbauer spectra. The results show that the mineral phases of Fe and Ti in the concentrates are mainly anatase with small amounts of goethite and Fe-Ti phase. Structural Fe is the main existing form of Fe and Ti in kaolinite. Four-fold coordination Fe 3 in Si-O tetrahedra and six-fold coordination Fe 3 and Fe 2 in Al-O octahedra are three existing types of structural Fe. This study is of significance both in the theoretical research on the kaolinite mineralogy and in the developmental practice of kaolinites in coal measures of west Beijing. |
| keywords:kaolin AEM modes of occurrence of Fe and Ti |
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