Journal of the Mineralogical Society of Korea (한국광물학회지)

The Mineralogical Society of Korea (한국광물학회)
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Synthesis of Organic Silicon Compounds from Siliceous Mudstone

규질이암으로부터 실리콘 유기화합물 합성

  • Kim, Byoung-Gyu (Minerals and Materials Processing Division, Korea Institute of Geosciences and Mineral Resources) ;
  • Jang, Hee-Dong (Minerals and Materials Processing Division, Korea Institute of Geosciences and Mineral Resources) ;
  • Kim, Jong-Seok (Department of Industrial Chemistry, Iksan National College)
  • 김병규 (한국지질자원연구원 자원활용소재연구부) ;
  • 장희동 (한국지질자원연구원 자원활용소재연구부) ;
  • 김종석 (익산대학 공업화학과)
  • Published : 2007.09.30
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Abstract

A novel route to the synthesis of tetramethoxysilane and other silicon alkoxides is described using siliceous mudstone as the raw material. The reaction of amorphous silica with triethanol-amine is enhanced by using an alkali metal hydroxide catalyst to form a range of triethanol-amnine-substituted silatrane species. These can undergo alkoxide exchange in acidic alcohols to form alkoxysilatranes, tetraalkoxysilanes, hexaalkoxydisiloxanes and higher siloxanes. Products were identified by FT-IR spectroscopy, XRD, SEM, 1H and 13C NMR spectroscopy, or gas chromatography.

국내의 실리카 광물인 규질이암으로부터 실리콘알콕사이드와 같은 실리콘 유기화합물을 합성하였다. 이 실험에서는 알카리금속염 촉매 존재 하에서 트리에탄올아민과 규질이암의 반응에 의해 트리에탄올아민의 치환체인 트리스실라트라닐옥시에틸아민의 합성이 관찰되었다. 이 트리스실라트 라닐옥시에틸아민은 산성촉매인 발연황산의 존재 하에서 메탄올과의 반응으로 메톡시실란을 얻을수가 있었으며, 이 메톡시실란과 메탄올과의반응으로 테트라메톡시실란이 합성되었다. 반응의 중간 생성물 및 최종 산물은 FT-IR, XRD, SEM, 1H and 13C NMR 및 가스크로마토그래피에 의해 확인할 수 있었다.

Keywords

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