| 我国天然钠质膨润土 |
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| 引用本文： | 黄伯龄,曲永新,徐晓岚.我国天然钠质膨润土[J].地质科学,1981,0(1):39-46. |
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| 作者姓名： | 黄伯龄 曲永新 徐晓岚 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 膨润土又称膨土岩或斑脱岩,是以蒙脱石类矿物为主要成分的粘土岩,是一种含水的铝硅酸盐矿物。 蒙脱石颗粒极细,由于晶格置换晶层表面带有大量负电荷,能吸附可交换性阳离子。以吸附钠离子为主时称为钠质膨润土,以吸附钙离子为主时称为钙质膨润土。此外,还有过渡类型。钠质膨润土具有高的电动电位和极强的水化能,在物性上优于钙质膨润土,从而有广泛应用价值。在冶金工业中用于球团矿的粘合剂。
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| 关 键 词： | , |
| 收稿时间： | 1979-08-04 |
| 修稿时间： | 1979-08-04; |
ON THE Na-BENTONITES IN CHINA |
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| Huang Boling,Qu Yongxin,Xu Xiaolan.ON THE Na-BENTONITES IN CHINA[J].Chinese Journal of Geology,1981,0(1):39-46. |
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| Authors: | Huang Boling Qu Yongxin Xu Xiaolan |
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| Institution: | Institute of Geology, Academia Sinica, Beijing |
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| Abstract: | The components of four bentonites and their mineral characteristics were studied by X-ray differaction,DTA,TGA,chemical analysis and electronic microscope as well as cation exchange capacity.The results obtained indicate that the samples collected from Linan Pinshan (Zhejiang province),Todsun (Xinjiang) and the bottom deposits of Mt.Heishan (Liaoning province) belong to the Na-type of bentonites,and the samples from Xuanhua (Hebei province) to the Ca-Na-type.The Na-bentonites mentioned above were formed by desilication (alteration) of tuff under a high-alkaline condition,and their transformation types were associated with the sealing condition of deposits,tectonic process and weathering.Near the ground surface bentonites were often translated into the Ca-type one. |
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| Keywords: | , |
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