Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Kinetic Study on the Epoxidation of Allyl Chloride by t-Butyl Hydroperoxide over Mo/SiO2 Catalyst

Mo/SiO2 촉매상에서 t-Butyl hydroperoxide에 의한 염화알릴의 에폭시화반응에 관한 속도론적 연구

  • Kim, Sung-Woo (Dept. of Chem. Eng., Pusan National University) ;
  • Park, Dae-Won (Dept. of Chem. Eng., Pusan National University) ;
  • Chung, Jong-Shik (Dept. of Chem. Eng., Pohang Institute of Science and Technology) ;
  • Park, Dae-Chul (Dept. of Catalysis, Korea Research Institute of Chemical Technology)
  • 김성우 (부산대학교 공과대학 화학공학과) ;
  • 박대원 (부산대학교 공과대학 화학공학과) ;
  • 정종식 (포항공과대학 화학공학과) ;
  • 박대철 (한국화학연구소 촉매연구부)
  • Received : 1992.07.03
  • Accepted : 1992.10.19
  • Published : 1992.12.31
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Abstract

The synthesis of epichlorohydrin was carried out by the epoxidation of allyl chloride with tert-butyl hydroperoxide(TBHP) over silica supported molybdenum catalyst. Kinetic study was performed at $60-80^{\circ}C$ and 10 atm with the molar ratio of TBHP/Allyl chloride between 0.01 and 0.1 in a batch reactor. The epoxidation of allyl chloride was inhibited by tert-butyl alcohol and kinetic data could be represented by Michaelis-Meten type rate equation. The reaction mechanism could be explained by the combination of reversible adsorption of TBHP and tert-butyl alcohol accompanied by reaction of allyl chloride with TBHP adsorbed on $Mo/SiO_2$ catalyst.

t-Butyl hydroperoxide(TBHP)에 의한 염화알릴의 에폭시화에 의해서 에피클로로히드린을 합성하는데 실리카에 담지된 몰리브데늄 촉매를 사용하였다. 속도론적 연구는 회분 반응기를 사용하여 $60-80^{\circ}C$, 10기압에서 TBHP/염화알릴의 농도비를 0.01-0.1의 범위내에서 수행하였다. t-butyl alcohol(TBA)에 의해서 염화알릴의 에폭시화 반응이 억제되었고, 반응속도는 Michaelis-Menten 형태의 속도식으로 표현할 수 있었다. 반응기구는 TBHP와 TBA의 가역흡착과 $Mo/SiO_2$에 흡착된 TBHP와 염화알릴의 표면반응으로 설명할 수 있었다.

Keywords

Acknowledgement

Supported by : 과학기술처