用溴仿酒精溶液分离膨润土中的蒙脱石 |
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引用本文: | 黄天佑,于震宗.用溴仿酒精溶液分离膨润土中的蒙脱石[J].岩石矿物学杂志,1985,4(4):331-335. |
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作者姓名: | 黄天佑 于震宗 |
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作者单位: | 清华大学机械系
(黄天佑),清华大学机械系(于震宗) |
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摘 要: | 一、引言 膨润土的一系列重要物理化学性质、使用性能(例如铸造生产中型砂的工艺性能、石油钻井泥浆等)主要由膨润土中的蒙脱石矿物含量所决定。有人通过试验证明,膨润土中的蒙脱石含量与型砂的湿压强度呈正相关关系。所以,除了鉴别膨润土的类型是属于钙基或是钠基等外,一个评阶膨润
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Separation of Montmorillonite from Bentonite with an Alcohliec Mixture of Bromoform |
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Abstract: | Bentonite quality depends largely on its content of montmorillonite. Method
of methylene blue adsoxption has been used usually to estimate the approximate
montmorillonite content. But the peavey liquid separation method is considered
to be the most precision process to separate the montmorillonite from other
minerals. The specific gravity of alcoholic bromoform mixture, the speed and
types of centrifugal equipment and other technical parameiers were studied in
detail. An optimum testing procedure is described in this paper. More than 1O
Chinese bentonites have been separated, and the contents of montmorillonite have
been determined. A new coefficient of methylene blue adsorption for bentonite
is found by comparing them with those of the methylene blue adsorption. It is
considered in this paper, that this new method is important for examing the
qualify of bentonite. Tlse above method is technically practical not only for fon-
dry industry but also for geologic examination. |
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