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Preparation and Performance of Synthetic Organo-beidellite  

Ryu, Gyoung-Won (Chungbuk University, Department of Earth and Environmental Sciences)
Jang, Young-Nam (Korea Institute of Geoscience and Mineral Resources, Minerals and Materials Processing Division)
Cho, Sung-Jun (Pai Chai University, Division for Polymer Materials Engineering)
Choi, Sang-Hoon (Chungbuk University, Department of Earth and Environmental Sciences)
Publication Information
Journal of the Mineralogical Society of Korea / v.19, no.2, 2006 , pp. 123-128 More about this Journal
Abstract
Beidellite, a member of the dioctahedral smectite group, was synthesized hydrothermally from dickite. Organophilic [DEACOOH]-beidellite intercalation complex was formed by the cation exchange reaction between synthetic Na-beidellite and [DEACOOH]Br. The products dried in high vacuum were treated with various organic solvent such as methanol, ethanol, acetone, ether, acetonitrile and caprolactam in order to determine the swelling behaviour of the prepared complexes. After drying under high vacuum, basal spacing of [DEACOOH]-beidellite shows 15.1 ${\AA}$, and it changed to 19.4, 29.9, 15.9, 16.8, 14.8, 26.5 and 14.8 ${\AA}$ under distilled water, methanol, ethanol, acetone, ether, acetonitrile and caporlactam, respectively. Especially, the characteristics of the intercalation complexes and their swelling behavior of the synthetic beidellite and natural montmorillonite were compared.
Keywords
dickite; smectite; beidellite; intercalation complexes; swelling behavior;
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Times Cited By KSCI : 1  (Citation Analysis)
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