Synthesis of ZSM-22 in Static and Dynamic System Using Seeds

DOI: 10.4236/mrc.2014.32007   PDF   HTML     4,867 Downloads   6,692 Views   Citations

Abstract

ZSM-22 was synthesized using various sources of silica, organic template 1,6-diaminohexane, under hydrothermal conditions, with and without agitation during crystallization. Subsequently, the crystallized material was used as seeds to accelerate the crystallization process. Characterization of the ZSM-22 samples was performed by XRD, ATG/DTG and FT-IR. It was found that it is possible to synthesize ZSM-22 employing colloidal silica and pyrolytic silica as silicon sources only if the system is stirred during crystallization. The crystallization time for these systems was 13 hours, longer times of crystallization do not significantly increase the crystallinity of the sample. The addition of seeds significantly accelerates the crystallization of ZSM-22, reducing the crystallization time to only 7 hours, with stirring and with systems employing colloidal silica.

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Júnior, L. , Silva, A. , Silva, B. and Alencar, S. (2014) Synthesis of ZSM-22 in Static and Dynamic System Using Seeds. Modern Research in Catalysis, 3, 49-56. doi: 10.4236/mrc.2014.32007.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Puzari, A. and Baruah, J.B. (2002) Organic Oxidative Reactions Mediated by Copper. Journal of Molecular Catalysis A: Chemical, 187, 149-162. http://dx.doi.org/10.1016/S1381-1169(02)00273-X
[2] Gates, B.C. (1992) Catalytic Chemistry. John Wiley and Sons, New York.
[3] Mercera, P.D.L., Van Ommen, J.G., Doesburg, E.B.M., Burggraaf, A.J. and Ross, J.R.H. (1990) Zirconia as a Support for Catalysts: Evolution of the Texture and Structure on Calcination in Air. Applied Catalysis, 57, 127-148.
http://dx.doi.org/10.1016/S0166-9834(00)80728-9
[4] Mercera, P.D.L., Van Ommen, J.G., Doesburg, E.B.M., Burggraaf, A.J. and Ross, J.R.H. (1991) Stabilized Tetragonal Zirconium Oxide as a Support for Catalysts Evolution of the Texture and Structure on Calcination in Static Air. Ap- plied Catalysis, 78, 79-96. http://dx.doi.org/10.1016/0166-9834(91)80090-J
[5] Srinivasan, R., Taulbee, D. and Davis, B.H. (1991) The Effect of Sulfate on the Crystal Structure of Zirconia. Catalysis letters, 9, 1-7. http://dx.doi.org/10.1007/BF00769074
[6] Rafelt, J.S. and Clark, J.H. (2000) Recent Advances in the Partial Oxidation of Organic Molecules Using Heterogeneous Catalysis. Catalysis Today, 57, 33-44. http://dx.doi.org/10.1016/S0920-5861(99)00308-9
[7] Kluytmans, J.H.J., Markusse, A.P., Kuster, B.F.M., Marin, G.B. and Schouten, J.C. (2000) Engineering Aspects of the Aqueous Noble Metal Catalysed Alcohol Oxidation. Catalysis Today, 57, 143-155.
http://dx.doi.org/10.1016/S0920-5861(99)00316-8
[8] Dimitratos, N., Lopez-Sanchez, J.A., Morgan, D., Carley, A.F., Tiruvalam, R., Kiely, C.J., Bethell, D. and Hutchings, G.J. (2009) Solvent-Free Oxidation of Benzyl Alcohol Using Au-Pd Catalysts Prepared by Sol Immobilisation. Physi- cal Chemistry Chemical Physics, 11, 5142-5153. http://dx.doi.org/10.1039/b900151b
[9] Dmitry, V.B., Alexei, A.L., Stan, T.K. and Pawel, K.P. (2005) Selective Oxidation of Alcohols in a Continuous Multifunctional Reactor: Ruthenium Oxide Catalysed Oxidation of Benzyl Alcohol. Applied Catalysis A: General, 288, 175-184.
[10] Prakash, S., Charan, C., Singh, A.K. and Shahi, V.K. (2013) Mixed Metal Nanoparticles Loaded Catalytic Polymer Membrane for Solvent Free Selective Oxidation of Alcohol to Benzyldehyde in a Reactor. Applied Catalysis B: Environmental, 132-133, 62-69. http://dx.doi.org/10.1016/j.apcatb.2012.11.001
[11] Chen, Y.T., Wang, H.P., Liu, C.-J., Zeng, Z.Y., Zhang, H., Zhou, C.M., Jia, X.L. and Yang, Y.H. (2012) Formation of Monometallic Au and Pd and Bimetallic Au-Pd Nanoparticles Confined in Mesopores via Argloe-Discharge Plasma Reduction and Their Catalytic Applications in Aerobic Oxidation of Benzyl Alcohol. Journal of Catalysis, 289, 105-117. http://dx.doi.org/10.1016/j.jcat.2012.01.020
[12] Tang, Q.T., Wu, C.M., Qiao, R., Chen, Y.T. and Yang, Y.H. (2011) Catalytic Performances of Mn-Ni Mixed Hydroxide Catalysts in Liquid-Phase Benzyl Alcohol Oxidation Using Molecular Oxygen. Applied Catalysis A: General, 403, 136-141.
[13] Dina, D.J.D., Ntieche, A.R., Ndi, J.N. and Ketcha, J.M. (2012) Adsorption of Acetic Acid onto Activated Carbons Obtained from Maize Cobs by Chemical Activation with Zinc Chloride (ZnCl2). Research Journal of Chemical Sciences, 2, 42-49.
[14] Cook, G.K. and Mayer, J.M. (1994) C-H Bond Activation by Metal Oxo Species: Oxidation of Cyclohexane by Chromyl Chloride. Journal of the American Chemical Society, 116, 1855-1867. http://dx.doi.org/10.1021/ja00084a029
[15] Basset, J.M., Vidaurre, A. and Graydon, W.F. (1972) Kinetics of Irreversible Chemisorprion: Surface Reduction of MnO2 by Cyclohexane, Cyclohexene, and 1,3and 1,4-Cyclohexadiene. Journal of Catalysis, 26, 118-126.
http://dx.doi.org/10.1016/0021-9517(72)90041-3
[16] Balsco, J., Concepcion, P., Nieto, J.M.L. andPerezpariente, J. (1995) Preparation, Characterization, and Catalytic Properties of VAPO-5 for the Oxydehydrogenation of Propane. Journal of Catalysis, 152, 1-17.
http://dx.doi.org/10.1006/jcat.1995.1054
[17] Kluytmans, J.H.J., Markusse, A.P., Kuster, B.F.M., Marin, G.B. and Schouten, J.C. (2000) Engineering Aspects of the Aqueous Noble Metal Catalysed Alcohol Oxidation. Catalysis Today, 57, 143-155.
http://dx.doi.org/10.1016/S0920-5861(99)00316-8
[18] Li, T., Wang, S.J., Yu, C.S., Ma, Y.C., Li, K.L. and Lin, L.W. (2011) Direct Conversion of Methane to Methanol over Nano-[Au/SiO2] in [Bmim]Cl Ionic Liquid. Applied Catalysis A: General, 398, 150-154.
http://dx.doi.org/10.1016/j.apcata.2011.03.028
[19] Nicoletti, J.W. and Whitesides, G.M. (1989) Liquid-Phase Oxidation of 2-Propanol to Acetone by Dioxygen Using Supported Platinum Catalysts. The Journal of Physical Chemistry, 93, 759-767. http://dx.doi.org/10.1021/j100339a050

  
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