단신 : 실리콘의 염소화반응에 의한 사염화규소 제조 = Preparation of Silicon Tetrachloride by Chlorination of Silicon

다국어 초록 (Multilingual Abstract)

The chlorination of a metallurgical-grade silicon was carried out in a fluidized bed reactor, 25 mm in diameter. The flow rate of the chlorine admitted into the reactor was 0.2 L/min and that of the carrier nitrogen was 0.8~1.0 L/ min. The reactor temperature was maintained at 450℃ and the temperature of the coolant at the SiCl4 condenser was at -5℃. The SiCl4 yield increased with increasing the mole fraction of chlorine in the feed gas, exhibiting 28% at the mole fraction of 0.2. Further increase of the chlorine mole fraction was not attempted in a worry that the reactor might be failed due to the high exothermicity of the reaction. The production of SiCl4 from silicon by fluidized bed chlorination was demonstrated on a laboratory scale, which is a stepping stone for future studies under more severe conditions toward industrial application.

참고문헌 (Reference)

1 김희영, "태양전지용 폴리실리콘 제조" 한국화학공학회 46 (46): 37-49, 2008

2 Park, H. K., "Vapor-phase Synthesis of Uniform Silica Spheres through Two-Stage Hydrolysis of SiCl4" 43 (43): 2833-2839, 2008

3 Crookston, R. B., "Vapor Pressures of Silicon Tetrachloride-Titanium Tetrachloride Mixtures" 8 (8): 544-547, 1963

4 Jain, M. P., "Studies of Hydrochlorination of Silicon in a Fluidized Bed Reactor" 51 : 272-280, 2010

5 Silenko, P. M., "Silicon Nitride Nanofibers Produced by the Pyrolysis of SiCl4 in H2 and N2 Media" 43 (43): 85-89, 2007

6 Collins, W., "Silicon Halides, In Kirk-Othmer Encyclopedia of Chemical Technology, 3rd edition, Vol. 20" John Wiley & Sons, Inc. 1982

7 Falcone, J. S., "Silicon Compounds, In Kirk-Othmer Encyclopedia of Chemical Technology, 3rd Ed" John Wiley & Sons 1982

8 "HSC Chemistry 5.1, Chemical Reaction and Equilibrium Software with Extensive Thermochemical Database"

9 Grace, J. R., "Fluidized-Bed Hydrodynamics, In Handbook of Multiphase Systems" Hemisphere Publishing Corporation 1982

10 Seo, E. S. M., "A Mathematical Model for Silicon Chlorination" 141 : 370-378, 2003