| 雷州半岛硅藻土煅烧中的结构变化 |
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| 引用本文： | 王辅亚,张惠芬.雷州半岛硅藻土煅烧中的结构变化[J].矿物学报,1995,15(1):40-46. |
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| 作者姓名： | 王辅亚 张惠芬 |
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| 作者单位： | 中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640 |
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| 基金项目： | 广东省科委自然科学基金，中国科学院广州分院择优资助 |
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| 摘 要： | 本文应用Ｘ射线衍射、红外光谱、扫描电镜等手段，对广东海康、徐闻的硅藻土在煅烧过程中热结构变化进行了探讨。结构表明，煅烧使硅藻内部矿物的微观结构发生变化而引起形变，主要为ＳｉＯ２从无序含水的蛋白石转变为有序的方石英晶体。形变温度随其硅藻的种类和杂质不同而各异。本研究为这两地硅藻土的开发提供了科学依据。
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| 关 键 词： | 硅藻土 热结构 扫描电镜 煅烧 结构变化 选矿 |
STRUCTURAL CHANGES IN HEATED DIATOMITE FROM GUANGDONG PROVINCE |
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| Wang Fuya, Zhang Huifen, Feng huang.STRUCTURAL CHANGES IN HEATED DIATOMITE FROM GUANGDONG PROVINCE[J].Acta Mineralogica Sinica,1995,15(1):40-46. |
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| Authors: | Wang Fuya Zhang Huifen Feng huang |
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| Abstract: | Changes in thermal-structure of diatomite heated at different temperatures from Haikang and Xuwen, Guangdong Province have been studied wlth X-ray diffraction,infrared spectrometry and SEM techniques. Changes in shape of the heated diatom are due to phase transformation during which SiO, consisting of diatom crystallized from d1sordered opal to ordered cristobalite. The temperature of phase transition varies with diatom genera and impurities. This study provides the scientific grounds for the development and utilization of diatomite from both locations. |
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| Keywords: | diatomite thermal structure SEM Guangdong |
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