SYNTHESIS OF ZEOLITE BETA DIRECTLY FROM RICE HUSK ASH: EFFECT OF REACTION COMPOSITION ON CRYSTALLINITY OF ZEOLITE BETA

https://doi.org/10.22146/ijc.21765

Didik Prasetyoko(1*), Zainab Ramli(2), Salasiah Endud(3), Halimaton Hamdan(4), Bogdan Sulikowski(5)

(1) Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor
(2) Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor
(3) Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor
(4) Ibnu Sina Insitute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 Johor
(5) Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow
(*) Corresponding Author

Abstract


White rice husk ash obtained from complete uncontrolled burning of rice husk contains more than 94% silica. The ash, which consists of crystalline silica of the type tridymite and α-crystobalite, was used directly as a source of silica in the synthesis of zeolite beta. The mole oxide ratio of the initial gel of 1.25-8Na2O: 10-120SiO2: Al2O3: 1-20TEA2O: 150-1000H2O was prepared and heated at 150°C in a static condition for 6 d. The solid phases formed were monitored by XRD technique. Influence of reaction mixture ratio in the initial gel to the crystalline products formed was studied. Results showed that the pure zeolite beta was formed in a certain range of reaction mixture, i.e.: 1.25-4Na2O : 15-45SiO2 : Al2O3 : 4-10TEA2O : 240-480H2O. The other ratio of reaction mixtures produced crystalline phases such as analcime, Na-P, mordenite, and gismondine, and non-reacted of α-crystobalite and tridymite.


Keywords


rice husk ash; tridymite; α-crystobalite; zeolite beta; synthesis

Full Text:

Full Text Pdf


References

[1] Wadlinger, R.L., Kerr, G.T., and Rosinski, E.J., 1967, US Patent No. 3308069.

[2] Freese, U., Heinrich, F., and Roessner, F., 1999, Catal. Today, 49, 237.

[3] Pariente, J.P., Martens, J. A., and Jacobs, P. A., 1987, Appl. Catal., 31, 35.

[4] Bhat, R.N. and Kumar, R. J., 1990, Chem. Biotechnol., 48, 453.

[5] Camblor, M.A. and Pariente, J.P., 1991, Zeolites, 11, 202.

[6] Leu, L.J., Hou, L.Y., Kang, B.C., Li, C.L., Wu, S.T. and Wu, J.C., 1991, Appl. Catal. A., 69, 49.

[7] Cannan, T.R. and Hinchey, R.J., 1992, US Patent No. 5139759.

[8] Rubin, M.K., 1992, US Patent No. 5164170.

[9] Prasetyoko, D., Ramli, Z., Endud, S., Hamdan, H. and Sulikowsky, B., 2006, Waste Management, in Press.

[10] Treacy, M.M.J., Higgins, J.B. and von Ballmoos, 1996, Collection of Simulated XRD Powder Patterns for Zeolites, John Wiley and Sons, Chichester.

[11] Barrer, R.M. 1982, Hydrothermal Chemistry of Zeolites, Academic Press, New York.

[12] Borade, R.B. and Clearfield, A., 1992, J. Phys. Chem., 96, 6729.

[13] Kunkeler, P.J. Moeskops, D. Bekkum, H.V. 1997, Microporous Mater., 11, 313.

[14] Eapen, M.J., Reddy, K.S.N. and Shirakar, V.P., 1994, Zeolites, 14, 295.



DOI: https://doi.org/10.22146/ijc.21765

Article Metrics

Abstract views : 1899 | views : 1524


Copyright (c) 2010 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

 

Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Web Analytics View The Statistics of Indones. J. Chem.