카오리나이트의 수열 합성에서 산처리의 효과
A Effect of Acid Treatment for Kaolinite Synthesis by Hydrothermal Reaction
- 주제(KDC) 040.000
- 발행기관 東新大學校
- 발행년도 1998
- 총서유형 Journal
- 본문언어 한국어
초록/요약
Kaolinite has been hydrothermally synthesized at 220℃ for 15 days with various acidic solution using a mixture of silica monomer and gibbsite or boehmite with a Si/Al ration =1. Acid solution treatment for kaolinite synthesis promotes the dissolution of the starting materials and leads to crystallization in short induction periods. Kaolinite synthesized with gibbsite treated with nitric acid was synthesized in short induction period and 10 ㎛ cubic form crystal, but gave a lower crystallinity due to disordering of unit cell to crystal, whereas Kaolinite synthesized with gibbsite treated with chloric acid gave a higher crystallinity and 0.5 ㎛ hexagonal plate form crystal.
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