Chemistry of inorganic compounds – Zeolite – Structure defined x-ray diffraction pattern
Reexamination Certificate
2008-02-28
2009-08-04
Kerns, Kevin P (Department: 1793)
Chemistry of inorganic compounds
Zeolite
Structure defined x-ray diffraction pattern
C423S706000, C502S060000, C502S073000
Reexamination Certificate
active
07569207
ABSTRACT:
A method of preparing a crystalline material, herein designated as SSZ-74, comprising contacting under crystallization conditions (1) a source of silicon oxide, (2) a source of another metal oxide, (3) fluoride ions, and (4) a structure directing agent comprising a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication. A method of preparing a crystalline material having a defined X-ray powder diffraction pattern, by (1) forming a reaction mixture having one or more metal oxides, one being silicon oxide, and a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication, (2) maintaining the reaction mixture at an elevated temperature until crystals are formed, (3) separating the crystalline material, and (4) optionally calcining the crystalline material. A method for preparing a crystalline material, comprising (1) forming a defined reaction mixture, (2) maintaining the reaction mixture under conditions where crystals are formed, (3) separating out the crystalline material, and (4) water-washing and drying the crystalline material such that it has a defined X-ray powder diffraction pattern.
REFERENCES:
patent: 4910006 (1990-03-01), Zones et al.
patent: 5316753 (1994-05-01), Nakagawa
patent: 6469226 (2002-10-01), Chica Lara et al.
patent: 2007/0144344 (2007-06-01), Zones et al.
patent: 2007/0144939 (2007-06-01), Zones et al.
patent: 2007/0148067 (2007-06-01), Zones et al.
patent: 2007/0148071 (2007-06-01), Zones et al.
patent: 2007/0148086 (2007-06-01), Zones et al.
patent: 2007/0149778 (2007-06-01), Zones et al.
patent: 2007/0149789 (2007-06-01), Zones et al.
patent: 2007/0149819 (2007-06-01), Zones et al.
patent: 2007/0149824 (2007-06-01), Zones et al.
patent: 2007/0149837 (2007-06-01), Zones et al.
patent: 2008/0159952 (2008-07-01), Miller et al.
U.S. Appl. No. 11/614,038, filed Dec. 20, 2006, entitled Gas Separation Using Molecular Sieve SSZ-74, 14 pages.
Burton Allen W.
Zones Stacey I.
Abernathy Susan
Chevron U.S.A. Inc.
Hevey John A
Kerns Kevin P
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