Mineralogical Characteristics of the Products from Montmorillonite Treated by Different Concentrations of KOH Solution
详细信息
- 责任者：Zhu Yun (National Research Center of Geoanalysis ; Beijing 100037 ; China) ; Wang Haoran
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2011
- 卷期：30(6)
- 关键词：蒙脱石 ; montmorillonite ; 矿物学 ; mineralogy
- 页码：p.1053-1058
- 图表：4 illus., 2 tables, 15 refs.
- 分类号：0700
- 出版序号：20122287
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
In this study, the phase transformation and hydrophilic behaviors of natural Na-smectite were investigated in alkaline solution. The natural smectite was put in solution of 0.1 M KOH, 0.5 M KOH and 1 M KOH at 80 ℃ for 30 days. The pH values of KOH solution after reaction were measured, and solid products were analyzed by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and electron dispersive analysis of X-rays (EDAX). The XRD results indicated that part of montmorillonite was transformed into chabazite and merlinoite after 30 days. The results showed that phase change of montmorillonite was related to the concentration of KOH and reaction temperature.