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US5316753A Expired / Lapsed US ⏱️ 0.0 years remaining

Zeolite SSZ-35

Assignee: Chevron USA Inc
•
Filing: 1992-10-09
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Granted: 1994-05-31
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Expires: 2012-10-09
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Abstract

Abstract The present invention relates to new crystalline zeolite SSZ-35 prepared by processes for preparing crystalline molecular sieves, particularly large pore zeolites, using conformationally constrained aza-polycyclic ring system templating agents.

Inventors

  • 👤 Yumi Nakagawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 02:45
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; C; C01; C01B; C01B37/00; C01B37/02; C01B39/00; C01B39/02; C01B39/06; C01B39/12; C01B39/46; C01B39/48

Claims Analysis

Total Claims: 26
Claim 1
Independent Claim 49 words
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table II.
Claim 2
Dependent Claim 49 words
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table II.
Claim 3
Dependent Claim 22 words
A zeolite having an average pore size diameter greater than about 6 Angstroms and having the X-ray diffraction lines of Table II.
Claim 4
Dependent Claim 22 words
A zeolite having an average pore size diameter greater than about 6 Angstroms and having the X-ray diffraction lines of Table II.
Claim 5
Dependent Claim 70 words
A zeolite according to claim 1 having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows: wherein Q is a polycyclic ring system cation having a quaternary nitrogen heteroatom, M is an alkali metal cation, W is selected from the group aluminum, gallium, iron, titanium, boron, and mixtures thereof, and Y is selected from the group consisting of silicon, germanium, and mixtures thereof.
Claim 6
Dependent Claim 14 words
A zeolite according to claim 3 wherein W is aluminum and Y is silicon.
Claim 7
Dependent Claim 14 words
A zeolite according to claim 3 wherein W is boron and Y is silicon.
Claim 8
Dependent Claim 110 words
A zeolite prepared by thermally treating a zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 15 or greater O/YO.sub.2 0.01 to 0.10 M+/YO.sub.2 less than 0.5 ______________________________________ wherein O is a polycyclic ring system cation having a quaternary nitrogen heteroatom, M is an alkali metal cation, W is selected from the group aluminum, gallium, iron, titanium, boron, and mixtures thereof, and Y is selected from the group consisting of silicon, germanium, and mixtures thereof, at a temperature of from about 200° C. to about 800° C., said zeolite having the x-ray diffraction lines of Table III.
Claim 9
Dependent Claim 110 words
A zeolite prepared by thermally treating a zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows: ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 15 or greater O/YO.sub.2 0.01 to 0.10 M+/YO.sub.2 less than 0.5 ______________________________________ wherein O is a polycyclic ring system cation having a quaternary nitrogen heteroatom, M is an alkali metal cation, W is selected from the group aluminum, gallium, iron, titanium, boron, and mixtures thereof, and Y is selected from the group consisting of silicon, germanium, and mixtures thereof, at a temperature of from about 200° C. to about 800° C., said zeolite having the x-ray diffraction lines of Table III.
Claim 10
Dependent Claim 13 words
The zeolite of claim 6 wherein W is boron and Y is silicon.
Claim 11
Dependent Claim 29 words
The zeolite of claim 7 wherein the boron in said zeolite in excess of 100 parts per million is replaced by element other than boron in a post-synthesis treatment.
Claim 12
Dependent Claim 20 words
The zeolite of claim 7 wherein the replacing element is a Group IIIA metal or a first row transition metal.
Claim 13
Dependent Claim 20 words
The zeolite of claim 9 wherein the replacing element is aluminum, chromium, gallium, iron, silicon, titanium, zinc, or mixtures thereof.
Claim 14
Dependent Claim 11 words
The zeolite of claim 8 wherein the replacing element is aluminum.
Claim 15
Dependent Claim 35 words
The zeolite of claim 6 which is in the hydrogen form and has been prepared by ion exchanging with an acid or with a solution of an ammonium salt followed by a second thermal treatment.
Claim 16
Dependent Claim 13 words
The zeolite of claim 10 wherein W is aluminum and Y is silicon.
Claim 17
Dependent Claim 13 words
The zeolite of claim 10 wherein W is boron and Y is silicon.
Claim 18
Dependent Claim 8 words
A catalyst comprising the zeolite of claim 12.
Claim 19
Dependent Claim 8 words
A catalyst comprising the zeolite of claim 13.
Claim 20
Dependent Claim 8 words
A catalyst comprising the zeolite of claim 14.
Claim 21
Dependent Claim 20 words
A catalyst comprising the zeolite of claim 12 which is neutralized with a basic metal and substantially free of acidity.
Claim 22
Dependent Claim 20 words
A catalyst comprising the zeolite of claim 14 which is neutralized with a basic metal and substantially free of acidity.
Claim 23
Dependent Claim 20 words
A catalyst comprising the zeolite of claim 13 which is neutralized with a basic metal and substantially free of acidity.
Claim 24
Dependent Claim 13 words
The zeolite of claim 6 wherein W is aluminum and Y is silicon.
Claim 25
Dependent Claim 49 words
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table III.
Claim 26
Dependent Claim 49 words
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table III.

References Cited (Backward Citations)

US4908342A Cited
US5053373A Cited
US4975258A Cited
US4962239A Cited
US5106801A Cited
US5190736A Cited
US5194235A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-05-30 1997-11-29 1998-05-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-05-30 2001-11-29 2002-05-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-05-30 2005-11-29 2006-05-31 $7700.00 Window Closed / Lapsed

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