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A Study on the Purification Chara00cteristics of Bentonite with Dry-Based Process  

정수복 (한국지질자원연구원 자원활용연구부)
김완태 (한국지질자원연구원 자원활용연구부)
채영배 (한국지질자원연구원 자원활용연구부)
임정한 (한국지질자원연구원 자원활용연구부)
Publication Information
Journal of the Mineralogical Society of Korea / v.15, no.4, 2002 , pp. 283-291 More about this Journal
Abstract
Dry-based processes such as crushing, milling, sieving, magnetic and gravity separation were employed in order to investigate the purification characteristics of bentonite. The CECs of Gampo 13 and 35 bentonites were estimated at 88.3 and 93.3 meq/100 g and the samples contained quartz and feldspar as impurity minerals. According to the physical properties of constituent minerals of bentonite, the purification techniques were adopted to enhance the grade of montmorillonite High grade of montmorillonite could be obtained by the combination of each process. Consequently, the recovery of final products of Gampo 13 and 35 bentonite were 68.6 and 49.5%, and the CECs of them were 96.9 and 109.6 meq/100 g, respectively.
Keywords
dry based-process; purification; bentonite; montmorillonite; recovery;
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