High silica cds-1 zeolite
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United States of America Patent
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Issued Date -
May 17, 2007
app pub date -
Nov 17, 2004
filing date -
Nov 17, 2003
priority date (Note) -
Abandoned
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Abstract
A high-silica content zeolite having a novel crystal structure, a zeolite membrane and manufacturing methods for these are provided, and the present invention relates to a zeolite having the chemical composition represented by [(Si.sub.36-xT.sub.y.O.sub.72).M.sub.z] (wherein M is a cation of an alkali metal such as Li, Na, K or Rb, T represents Al, Ga, Fe and Ce as skeleton substituting elements, x satisfies 0.ltoreq.x.ltoreq.3.0, y satisfies 0.ltoreq.y.ltoreq.1.0 and z satisfies 0.ltoreq.z.ltoreq.3.0), and having a micropore formed of covalent bonds between Si and O atoms, with a specific diffraction peak at 2.theta. in powder x-ray diffraction, together with a zeolite membrane and methods for manufacturing these.
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