Porous crystalline material (zeolite ITQ-21), the...

Details Porous crystalline material (zeolite ITQ-21), the... Porous crystalline material (zeolite ITQ-21), the...

2005-02-01

2005-02-01

Sample, David (Department: 1755)

Chemistry of inorganic compounds

Zeolite

Structure defined x-ray diffraction pattern

C423S706000, C423S708000, C423S713000, C502S060000, C208S046000

Reexamination Certificate

active

06849248

ABSTRACT:
A porous crystalline material (ITQ-21) which in its calcined form has the chemical compositionin-line-formulae description="In-line Formulae" end="lead"?X2O3:nYO2:mZO2in-line-formulae description="In-line Formulae" end="tail"?wherein (n+m) is at least 5, X is a trivalent element, Z is Ge, Y is at least one tetravalent element other than Ge, and the ratio is m/(n+m) is 0.0 to 0.5, and displays the X-ray diffraction values given in Table 1, and a method of preparation of the material in the presence of fluoride ions and using N(16)-methylsparteinium as structure director agent; the material being useful in its acid form and in bifunctional catalyst form in processes of catalytic cracking, hydro-cracking and alkylation of aromatics.

REFERENCES:
patent: 3411874 (1968-11-01), Ciric
patent: 5393511 (1995-02-01), Delprato et al.
patent: 6080382 (2000-06-01), Lee et al.
patent: 0 337 479 (1992-07-01), None

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