Synthesis and Characterization of Borosilicate Catalyst

보로실리케이트 촉매의 합성 및 물성에 관한 연구

  • Kaesoo Lee (Department of Chemistry, Chonnam National University) ;
  • Minsoo Cho (Department of Chemistry, Chonnam National University) ;
  • Chongsoo Han (Department of Chemistry, Chonnam National University) ;
  • Myeongseon Kim (Department of Chemistry, Chonnam National University) ;
  • Gon Seo (Department of Chemical Technology, Chonnam National University)
  • 이계수 (전남대학교 자연과학대학 화학과) ;
  • 조민수 (전남대학교 자연과학대학 화학과) ;
  • 한종수 (전남대학교 자연과학대학 화학과) ;
  • 김명선 (전남대학교 자연과학대학 화학과) ;
  • 서곤 (전남대학교 공과대학 공업화학과)
  • Published : 1989.08.20

Abstract

The synthesis of borosilicate consisted of boron and silicon was stadied. The composition, acidity and adsorption characteristics of synthesized borosilicate were examined. The synthesis rate increased with temperature and concentration of $Na_2O$, but the enhansing effects were different according to the reaction conditons. The synthesis process could be simulated by solution transfer mechanism assuming that crystals grow on the surface of crystal or nuclei with dissolved reactant. Adsorption characteristics of synthesized borosilicate was discussed with temperature programmed desorption patterns of ammonia and propylene and adsorption isotherms of propylene and propane.

붕소와 실리콘으로 이루어진 보로실리케이트의 합성과정과 합성된 보로실리케이트의 조성, 산성도 및 흡착특성을 조사하였다. 합성속도는 온도와 $Na_2O$ 농도를 높여주면 빨라졌으나, 그 증진요인은 조건에 따라 달랐다. 합성과정은 용해된 반응물이 핵심이나 결정의 표면에 반응하여 결정이 성장되는 용액전달기구로 모사될 수 있었다. 암모니아와 프로필렌의 승온 탈착실험, 프로필렌과 프로판의 흡착 등온선으로부터 합성된 보로실레케이트의 흡착특성을 고찰하였다.

Keywords

References

  1. U.S. Pat. 4,285,919 M. R. Klotz;S. R. Ely
  2. Proc. Of 7th Intern. Zeolite Conf. R. B. Borade;A. B. Halgeri;T. S. R. Prasada Rao
  3. J. Phys. Chem. v.89 C. T. W. Chu;C. D. Chang
  4. Zeolites v.7 H. Kessler;J. M. Chezeau;J. L. Guth;H. Strub
  5. J. Phys. Chem. v.90 J. M. Thomas;X. S. Liu
  6. Innovation in Zeolite Materials Science B. Notari;D. J. Grobet(et al.)(ed.)
  7. Innovation in Zeolite Materials Science E. M. Flanigen;R. C. Patton;S. T. Wilson
  8. Innovation in Zeolite Materials Science H.-X. Li;J. A. Martens;P. A. Jacobs;S. Schubert;F. Schmidt;M. Ziethen;A. X. Trantwein
  9. Zeolites v.5 M. G. Howden
  10. Catalysis on the Energy Scene Z. Gabelica;G. Debras;J. B. Nagy;S. Kailnguine(ed.);Manhay(ed.)
  11. Zeolites, Synthesis, Structure, Technology and Application W. Guo;J. Liang;H. Li;M. Ying;J. Hu;B. Drzaj(ed.);S. Hocevar(ed.);S. Pejovnik(ed.)
  12. Proc. 5th Intern., Conf. On Molecular Sieves M. Taramasso;G. Perego;B. Notari
  13. J. Mol. Catal. v.31 K. G. Ione;L. A. Vostrikova;V. M. Mastikhin
  14. Proc. 6th Intern., Zeolite Conf. W. Holderich;H. Eichhorn;R. Lehnert;L. Marosi;W. Mross;R. Reinke;W. Ruppel;H. Schlimper
  15. Zeolites v.5 V. Heinze;H. J. Haupt
  16. Proc. 7th Intern. Zeolite Conf. H. K. Beyer;G. Borbely
  17. Proc. 7th Inter., Zeolite Conf. G. Coudurier;J. C. Verdine
  18. J. Chem. Soc. Faraday Trans. I v.77 K.-J. Chao;T. C. Tsai;M.-S. Chen
  19. 화학공학 v.23 서 곤
  20. J. Phys. Chem. v.70 G. T. Kerr
  21. Adv. Chem. Ser. v.101 S. P. Zhdanov
  22. J. Colloid and Interface Sci. v.28 J. Ciric
  23. Chem. Eng. Sci. v.24 S. L. Liu
  24. 화학공학 v.26 조민수;한승철;김영만;정경환;서 곤
  25. Molecular Sieves D. W. Breck;E. M. Flanigen