Method of making all-silica zeolite with IFR structure

Details Method of making all-silica zeolite with IFR structure Method of making all-silica zeolite with IFR structure

2007-07-03

2007-07-03

Sample, David (Department: 1755)

Chemistry of inorganic compounds

Zeolite

Organic compound used to form zeolite

C423S708000, C423S335000

Reexamination Certificate

active

11264197

ABSTRACT:
An all-silica zeolite having the IFR framework topology can be directly synthesized by preparing a reaction mixture comprising (1) an active source of silicon oxide, (2) a structure directing agent comprising a N-benzyl-1,4-diazabicyclo[2.2.2] octane cation, (3) an active source of hydroxide and (4) water and maintaining the reaction mixture under conditions sufficient to form crystals of the zeolite.

REFERENCES:
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patent: 5437855 (1995-08-01), Valyocsik
patent: 5441721 (1995-08-01), Valyocsik
patent: 5653956 (1997-08-01), Zones
patent: WO 98/29332 (1998-07-01), None
Barrett et al., “Synthesis and Structure of As-Prepared ITQ-4, A Large Pore Pure Silica Zeolite; The Role and Location of Fluoride Anions and Organic Cations,” J. Phys. Chem. B, 1998 102, 4147-4155.
P.A. Barret, M.A. Camblor, A. Corma, R.H. Jones, and L.A. Villaescusa, Structure of ITQ-4, a New Pure Silica Polymorph Containing Large Pores and a Large Void Volume, Chem. Mater, 1997, 1713-1715.
Cong-Yan Chen, Larry W. Finger, Ronald C. Medrud, Charles L. Kibby, Peter A. Crozier, Ignatius Y. Chan, Thomas V. Harris, Larry W. Beck, and Stacey I. Zones, Synthesis, Structure, and Physicochemical and Catalytic Characterization of the Novel High-Silica Large-Pore Zeolite SSZ-42, Chem. Eur J. 1998, 4, No. 7, 1312-1323.
C.Y. Chen, L.W. Finger, R.C. Medrud, P.A. Crozier, I.Y. Chan, T.V. Harris and S.I. Zones, SSZ-42: the first high-silica large pore zeolite with an undulating, one-dimensional channel system, Chem. Commun., 1997, 1775-1776.
Christopher W. Jones, Son-Jong Hwang, Tatsuy Okubo, and Mark E. Davis, Synthesis of Hydrophobic Molecular Sieves by Hydrothermal Treatment with Acetic Acid, Chem. Mater, 2001, 13, 1041-1050, Published on Web Jan. 23, 2001.
Raul F. Lobo, Ming Pan, Ingnatius Chan, Ronald C. Medrud, Stacey I. Zones, Peter A. Crozier, and Mark E. Davis, Physicochemical Characterization of Zeolites SSZ-26 and SSZ-33, J. Phys. Chem, 1994, 98, 12040-12052.
Miguel A. Camblor, Avelino Corma and Luis A. Villaesusa, ITQ-4: a new large pore microporous polymorph of silica, Chem. Commun, 1997, 749-750.
C.Y. Chen, S.I. Zones, L.T. Yuen, T.V. Harris and S.A. Elomari, Factors Influencing The Synthesis Of Novel Large Pore Zeolite SSZ-42 And Its Subsequent Characterization, 12thInternational Zeolite Conference, 1999, 1945-1951, Richmond, CA.
P.A. Barrett, E.T. Boix, M.A. Camblor, A. Corma, M.J. Diaz-Cabanas, S. Valencia and L.A. Villaesusa, Synthesis of Defect-Free Pure Silica Polymorphs Of Low Framework Density in Aqueous Fluoride Media, 12thInternational Zeolite Conference, 1999, 1495-1502.
Paul Wagner, Yumi Nakagawa, Greg S. Lee, Mark E. Davis, Saleh Elomari, Ronald C. Medrud, and S.I. Zones, Guest/Host Relationship in the Synthesis of the Novel Cage-Based Zeolites SSZ-35, SSZ-36, and SSZ-39, American Chemical Society, 2000, 263-273.

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