한국광물학회지 (Journal of the Mineralogical Society of Korea)

  • 제19권4호
  • /
  • Pages.301-310
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  • 2006
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  • 1225-309X(pISSN)
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  • 2288-7172(eISSN)
한국광물학회 (The Mineralogical Society of Korea)
권호 표지

제올라이트로부터 스멕타이트 수열 합성에 대한 연구

Hydrothermal Synthesis of Smectite from Zeolite

  • Chae, Soo-Chun (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, You-Dong (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Jang, Young-Nam (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Bae, In-Kook (Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Ryu, Kyung-Won (Department of Earth and Environmental Sciences) ;
  • Lee, Sung-Ki (University Science and Technology)
  • 발행 : 2006.12.31
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초록

수열합성법에 의하여 Na-P 형 및 Na-A형 제올라이트로부터 스멕타이트를 합성하였고 이들의 물리화학적 특성을 연구하였다. 제올라이트로부터 스멕타이트의 최적 합성조건은 반응온도 $290^{\circ}C$, 반응시간 72 h, 자생압력 $75{\sim}100kgf/cm^2$였으며, 스멕타이트의 합성을 위한 초기 반응 용액의 pH는 Na-P형 제올라이트의 경우, pH 6, 그리고 Na-A형 제올라이트의 경우, pH 10이었다. Na-P형 및 Na-A 형 제올라이트로부터 합성된 스멕타이트에 대한 부정방위, 정방위, 에티렌 그리콜 및 Greene-Kelly 시험법 등을 통하여 합성된 스멕타이트가 $12{\AA}$-바이델라이트임을 확인하였으며, 이들의 특성을 연구하였다.

Smectites were synthesized from Na-P type and Na-A type zeolites by the hydrothermal synthetic method, and their physicochemical properties were studied. The optimal synthetic conditions for producing smectite were $290^{\circ}C$, 72 hr and $75{\sim}100kgf/cm^2$ in autogenous pressure. pHs of initial reaction solutions for the synthesis of smectites from Na-P type and Na-A type zeolite s were pH 6 and pH 10, respectively. The synthetic smectite was confirmed as $12{\AA}$-beidellite by a series of analysis such as X-ray diffraction analysis with random and oriented mounts, ethylene glycol treatment, and Greene-Kelly test, and their several physicochemical properties were studied.

키워드

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