화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.4, No.4, 776-784, December, 1993
유기 템플레이트 배제하의 ZSM-5 결정화에 따른 영향인자
Influencing Factors on the Crystallizations of ZSM-5 in the Absence of Organic Template
초록
유기 템플레이트인 TPA+ 이온의 배제 하에 pentasil 계열의 제올라이트인 ZSM-5를 210℃에서 합성하였다. 본 연구에서 얻어진 결론에 의하면 유기 템플레이트가 사용되지 않는 합성조건 하에서는 기존의 방법으로는 합성이 되지 않는 것을 알 수 있었다. 결과에 의하면 유기 템플레이트 배제 하에서 ZSM-5의 결정화 반응에 적합한 조성영역은 매우 좁고 Na2O/SiO2 및 SiO2/Al2O3 몰비 조절에 세심한 주의를 요해야 하는 것을 보여주고 있다. 이외에도 ZSM-5 결정화 반응에 미치는 혼합방법, 숙성 및 반응시간의 영향이 매우 큰 것을 알 수 있었다.
A pentasil zeolite, ZSM-5 was synthesized in the absence of organic template, TPA+ ion at 210℃. It was realized that a conventional method can not be applied to the synthesis system where organic templates are not used. The results indicated that the compositional range for the crystallization of ZSM-5 is very narrow, requiring very careful controls in the Na2O/SiO2 and SiO2/Al2O3 ratios. In addition, the results showed that the effects of mixing method, aging and reaction time on the crystallization of ZSM-5 were extraordinarily significant.
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