저온상압하에서의 ZSM-5 결정화 반응에 대한 알칼리 양이온의 영향

김화중; 이명철

Journal of the Korean Industrial and Engineering Chemistry, Vol.9, No.1, 38-43, February, 1998

Export Citation

저온상압하에서의 ZSM-5 결정화 반응에 대한 알칼리 양이온의 영향

The Effects of Various Alkali Cations on the Crystallization of ZSM-5 at Atmospheric Pressure and Low Temperature

김화중, 이명철

초록

저온 상압하에서 Li⁺, Na⁺, K⁺ 및 Cs^＋과 같은 알칼리 양이온을 사용하여 M-ZSM-5를 합성한 결과 핵 생성반응 속도는 Na^->K⁺>Li⁺>Cs⁺ 순으로 감소하는 것을 알 수 있었다. 특히, 저온 상압하에서는 기존의 고온 고압법과 달리 핵 생성 반응 속도가 큰 경우, 결정의 크기도 크다는 것을 알 수 있었다. 즉, 결정의 크기는 K⁺>Na⁺>Cs⁺>Li⁺의 순으로 감소하였다. 또한 알칼리 양이온의 종류와 관계없이 52 시간 이내에 BET 표면적이 300m²/g, 특히 Na⁺이온의 경우 32 시간이내에 400m²/g 이상인 ZSM-5의 합성이 가능하다는 것을 알수 있었다.

It was realized that the nucleation rate in the synthesis of M-ZSM-5 using various alkali cations such as Li⁺, Na⁺, K⁺ and Cs⁺ at low temperature and atmospheric pressure was decreased in the order of Na^->K⁺>Li⁺>Cs⁺. Unlike conventional synthesis method at larger the crystal size of M-ZSM-5 obtained ; that is, the crystal size in the order of K⁺>Na⁺>Cs⁺>Li⁺. In addition, it also suggests that regardless of alkali cations to be used, the current synthesis method can produce M-ZSM-5 with BET surface area greater than 300m²/g within 52hrs. of reaction time, in particular greater than 400m² within 32hrs. for Na⁺ cation.

[References]

Ratnasamy P, Babu GP, Chandwadkar AJ, Kulkani SB, Zeolites, 6, 98 (1986)
Inui T, Ishihara T, Morinaga N, Takegami Y, React. Kinet. Catal. Lett., 19, 71 (1982)
Breck DW, Zeolite Molecular Sieves, Wiley, New York, 304 (1974)
Nastro A, Sand LB, Zeolites, 6, 474 (1986)
Barrer RM, Hydrothermal Chemistry of Zeolites, Academic Press, New York (1982)
김화중, 이명철, 김조웅, 하재목, Korean Patent Appl. No. 2338 (1996)
Kim WJ, Lee MC, Kim JW, Ha JM, J. Korean Ind. Eng. Chem., 8(2), 320 (1997)
Derouane EG, Nagy JB, Gabelica Z, Blom N, Zeolites, 2, 299 (1982)
Erdem A, Sand LB, J. Catal., 60, 241 (1979)
Nastro A, Sand LB, Zeolites, 3, 57 (1983)
Gabelica Z, Nagy JB, Bodart P, Dewaele N, Nastro A, Zeolites, 7, 67 (1987)
Suzuki K, Kiyozumi Y, Matsuzaki K, Shin S, Appl. Catal., 42, 35 (1988)
Engelhardt G, Fahlke B, Magi M, Lippmaa E, J. Phys. Chem., 266, 239 (1985)
Scholle KFMGJ, Veeman WS, Frenken P, Van der Velden GPM, Appl. Catal., 17, 233 (1985)
Nagy JB, Gabelica Z, Derouane EG, Chem. Lett., 1105 (1982)
Boxhoorn G, Kortbeek AGTG, Hays GR, Alma NCM, Zeolites, 4, 15 (1984)
Woolery GL, Alemany LB, Dessau RH, Chester AW, Zeolites, 6, 14 (1986)
Debras G, Gourgue A, Nagy JB, De Clippelier G, Zeolites, 6, 161 (1986)

[Referenced By]

[1] Ratnasamy P, Babu GP, Chandwadkar AJ, Kulkani SB, Zeolites, 6, 98 (1986)

[2] Inui T, Ishihara T, Morinaga N, Takegami Y, React. Kinet. Catal. Lett., 19, 71 (1982)

[3] Breck DW, Zeolite Molecular Sieves, Wiley, New York, 304 (1974)

[4] Nastro A, Sand LB, Zeolites, 6, 474 (1986)

[5] Barrer RM, Hydrothermal Chemistry of Zeolites, Academic Press, New York (1982)

[6] 김화중, 이명철, 김조웅, 하재목, Korean Patent Appl. No. 2338 (1996)

[7] Kim WJ, Lee MC, Kim JW, Ha JM, J. Korean Ind. Eng. Chem., 8(2), 320 (1997)

[8] Derouane EG, Nagy JB, Gabelica Z, Blom N, Zeolites, 2, 299 (1982)

[9] Erdem A, Sand LB, J. Catal., 60, 241 (1979)

[10] Nastro A, Sand LB, Zeolites, 3, 57 (1983)

[11] Gabelica Z, Nagy JB, Bodart P, Dewaele N, Nastro A, Zeolites, 7, 67 (1987)

[12] Suzuki K, Kiyozumi Y, Matsuzaki K, Shin S, Appl. Catal., 42, 35 (1988)

[13] Engelhardt G, Fahlke B, Magi M, Lippmaa E, J. Phys. Chem., 266, 239 (1985)

[14] Scholle KFMGJ, Veeman WS, Frenken P, Van der Velden GPM, Appl. Catal., 17, 233 (1985)

[15] Nagy JB, Gabelica Z, Derouane EG, Chem. Lett., 1105 (1982)

[16] Boxhoorn G, Kortbeek AGTG, Hays GR, Alma NCM, Zeolites, 4, 15 (1984)

[17] Woolery GL, Alemany LB, Dessau RH, Chester AW, Zeolites, 6, 14 (1986)

[18] Debras G, Gourgue A, Nagy JB, De Clippelier G, Zeolites, 6, 161 (1986)