| 四氯化碳重液法分离蒙脱石 |
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| 引用本文： | 孔庆池,劳永新.四氯化碳重液法分离蒙脱石[J].岩矿测试,1999,18(1):62-64. |
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| 作者姓名： | 孔庆池 劳永新 |
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| 作者单位： | 石油大学炼制系,山东东营,257062 |
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| 基金项目： | 天然气总公司九五重点资助项目 |
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| 摘 要： | 提出了一种新的蒙脱石重液分离方法，蒙脱石在正辛胺水溶液中浸过后，密度降至１．６０×１０３ｋｇ／ｍ３以下，可用ＣＣｌ４作重液实现与其它粘土矿物及杂质的分离。用７．５ｍｏｌ／ＬＮａＯＨ溶液处理此含有正辛胺的蒙脱石，可得纯度很高的钠蒙脱石。用此法进行蒙脱石定量分析，所得结果与国际铸造协会推荐的溴仿酒精重液法相符合，且成本低、操作方便、污染小。
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| 关 键 词： | 蒙脱石 分离 测定 四氯化碳重液 |
| 修稿时间： | 1998-03-23 |
Separation of Montmorillonite from Clay Minerals by Using CCl4 as a Heavy Liquid |
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| Kong Qingchi,Lao Yongxin,Zhang Zailong,Lin Wuzheng.Separation of Montmorillonite from Clay Minerals by Using CCl4 as a Heavy Liquid[J].Rock and Mineral Analysis,1999,18(1):62-64. |
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| Authors: | Kong Qingchi Lao Yongxin Zhang Zailong Lin Wuzheng |
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| Abstract: | A new method for the separation of montmorillonite from clay minerals is presented in this paper. After immersed in n C 8H 17 NH 2 solution, the density of montmorillonite is reduced to less than 1.60 t/m 3 and can be separated from clay minerals and other impurities by using CCl 4 as a heavy liquid. Na montmorillonite with high purity can be obtained by treating n C 8H 17 NH 2 immersed montmorillonite with 7.5 mol/L NaOH solution. The method has been applied to separation and quantitative analysis of montmorillonite with satisfactory results. |
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| Keywords: | montmorillonite separation quantitative analysis |
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