Low Temperature Experimental Investigation of the Effect of High pH Naoh Solutions on the Opalinus Shale, Switzerland
Low Temperature Experimental Investigation of the Effect of High pH Naoh Solutions on the Opalinus Shale, Switzerland
复制标题
高 pH Naoh 溶液对瑞士 Opalinus 页岩影响的低温实验研究
DOI：
10.1346/ccmn.1992.0400604
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发表时间：
1992
影响因子：
2.2
通讯作者：
J. Chermak
中科院分区：
文献类型：
--
作者：
J. Chermak
在 150°C、175°C 和 200°C 下进行间歇式反应器实验，以确定高 pH NaOH 溶液对 Opalinus 页岩矿物学的影响。在这些实验中，监测了 25°C 下溶液淬火 pH 值、溶液成分和矿物学随时间的变化，持续约 40 天。运行在 50 ml 钛水热反应容器中进行。每个反应器中装入 0.5–5.0 g 80–200 目尺寸的 Opalinus 页岩部分和 25 ml 溶液（0.1 和 0.01 M NaOH）。在这些高pH条件下观察到的反应产物的一般顺序包括首先形成方沸石，随后形成蛭石，最后形成钠累托石。
Batch reactor experiments were performed at 150°C, 175°C, and 200°C to determine the effect of high pH NaOH solutions on the mineralogy of the Opalinus shale. In these experiments, the change in solution quench pH at 25°C, solution composition, and mineralogy were monitored as a function of time for up to ≈40 days. Runs were performed in 50 ml titanium hydrothermal reactor vessels. Each reactor was charged with 0.5–5.0 g of the 80–200 mesh size fraction of Opalinus shale, and 25 ml of solution (0.1 and 0.01 M NaOH). The general sequence of reaction products observed under these high pH conditions include first the formation of analcime, followed by vermiculite, and finally Na-rectorite formation.