순수한 제올라이트 Rho의 합성과 합성조건 연구

임우택; 장병대; 박만; 정성욱; 장창환; 허남호; Woo Taik Lim; Byung Dae Jang; Man Park; Sung Wook Jung; Chang Hwan Chang; Nam Ho Heo

Journal of the Korean Industrial and Engineering Chemistry, Vol.13, No.7, 660-665, November, 2002

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순수한 제올라이트 Rho의 합성과 합성조건 연구

A Study on the Synthesis of Pure Zeolite Rho

임우택, 장병대¹, 박만¹, 정성욱², 장창환², 허남호 ^{1, †}

포항공대 포항가속기연구소, 포항 790-600
¹경북대학교 공업화학과, 대구 702-701
²포항산업과학기술연구원, 포항 790-600

Woo Taik Lim, Byung Dae Jang¹, Man Park¹, Sung Wook Jung², Chang Hwan Chang², and Nam Ho Heo^{1, †}

Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-600, Korea
¹Department of Industrial Chemistry, Kyungpook National University, Daegu 702-701, Korea
²Research Institute of Science and Technology, Pohang 790-600, Korea

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초록

겔 조성과 합성조건의 조정으로 순수한 제올라이트 Rho 결정들이 (gel 조성, 3.11Na : 0.31Cs : 1.0Al : 5.69Si : 55.5H₂O) 유기성 구조유도체 없이 실온에서 5일 동안의 숙성에 의해서 합성되어졌다. 합성된 제올라이트 Rho 결정들의 평균 크기는 약 2 μm로 추정되어졌으며 Si/Al 비는 3.54이었고 물함량은 15.9 %이었다(Na_4.96Cs_5.60Si_37.44Al_10.56O₉₆·39H₂O). 제올라이트 Rho의 골격은 Si(0Al), Si(1Al) 및 Si(2Al)로 구성되어져 있는 것으로 나타났으며 약 1000 ℃까지 안정하였다.

With the aging time of 5 days at room temperature, in the absence of organic structure-diracting agents, nearly pure Rho zeolite was synthesized from a gel composition of 3.11Na : 0.31Cs : 1.0Al : 5.69Si : 55.5H₂O. This study was conducted to improve the purity of Rho crystals through modification of the gel composition and the process condition. The average size of synthesized Rho crystals was estimated to be ca. 2 μm. The formula of zeolite Rho unit cell was found to be Na_4.96Cs_5.60Si_37.44Al_10.56O₉₆·39H₂O with Si/Al ratio = 3.54 and 15.9 % of water content. The framework of Rho zeolite was composed of Si(0Al), Si(1Al) and Si(2Al), and it was thermally stable up to about 1000 ℃.

Keywords:pure zeolite Rho;gel composition;synthetic condition;aging time

[References]

Robson HE, Shoemaker DP, Ogilvie RA, Manor PC, Mol. Sieves, 121, 106 (1973)
U.S. Patent, 3,904,738 (1975)
Shannon RD, Keane M, Abrams L, Staley RH, Gier TE, Corbin DR, Sonnichsen GC, J. Catal., 113, 367 (1988)
Shannon RD, Keane M, Abrams L, Staley RH, Gier TE, Corbin DR, Sonnichsen GC, J. Catal., 114, 8 (1988)
U.S. Patent, 4,806,869 (1989)
Barrer RM, Barri S, Klinowski J, Proceedings of the 5th International Conference on Zeolites, Edited by L.V.C. Rees, in 1980, in Naples, Italy 20 (1980)
Merz C, Fetting F, Chem. Ing. Tech., 66(5), 730 (1994)
Chatelain T, Patarin J, Fousson E, Soulard M, Guth JL, Schulz P, Microporous Mater., 4, 231 (1995)
Parise JB, Abrams L, Gier TE, Corbin DR, Jorgensen JD, Prince E, J. Phys. Chem., 88, 2303 (1984)
Abrams L, Corbin DR, Jones GA, Eddy MM, Harrison WT, Stucky GD, Cox DE, J. Am. Chem. Soc., 112, 4821 (1990)
Parise JB, Corbin DR, Abrams L, Microporous Mater., 4, 99 (1995)
Ginter DM, Went GT, Bell AT, Radke CJ, Zeolites, 12, 733 (1992)
Twu J, Dutta PK, Kresge CT, Zeolites, 11, 672 (1991)

[Related Articles]

[1] Robson HE, Shoemaker DP, Ogilvie RA, Manor PC, Mol. Sieves, 121, 106 (1973)

[2] U.S. Patent, 3,904,738 (1975)

[3] Shannon RD, Keane M, Abrams L, Staley RH, Gier TE, Corbin DR, Sonnichsen GC, J. Catal., 113, 367 (1988)

[4] Shannon RD, Keane M, Abrams L, Staley RH, Gier TE, Corbin DR, Sonnichsen GC, J. Catal., 114, 8 (1988)

[5] U.S. Patent, 4,806,869 (1989)

[6] Barrer RM, Barri S, Klinowski J, Proceedings of the 5th International Conference on Zeolites, Edited by L.V.C. Rees, in 1980, in Naples, Italy 20 (1980)

[7] Merz C, Fetting F, Chem. Ing. Tech., 66(5), 730 (1994)

[8] Chatelain T, Patarin J, Fousson E, Soulard M, Guth JL, Schulz P, Microporous Mater., 4, 231 (1995)

[9] Parise JB, Abrams L, Gier TE, Corbin DR, Jorgensen JD, Prince E, J. Phys. Chem., 88, 2303 (1984)

[10] Abrams L, Corbin DR, Jones GA, Eddy MM, Harrison WT, Stucky GD, Cox DE, J. Am. Chem. Soc., 112, 4821 (1990)

[11] Parise JB, Corbin DR, Abrams L, Microporous Mater., 4, 99 (1995)

[12] Ginter DM, Went GT, Bell AT, Radke CJ, Zeolites, 12, 733 (1992)

[13] Twu J, Dutta PK, Kresge CT, Zeolites, 11, 672 (1991)