US5202014A
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Zeolite SSZ-25
Assignee: Chevron USA Inc
•
Filing: 1991-11-06
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Granted: 1993-04-13
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Expires: 2011-11-06
Abstract
Abstract A crystalline zeolite SSZ-25 is prepared using an adamantane quaternary ammonium ion as a template.
Inventors
- 👤 Stacey I. Zones
- 👤 Dennis L. Holtermann
- 👤 Robert A. Innes
- 👤 Theresa A. Pecoraro
- 👤 Donald S. Santilli
- 👤 James N. Ziemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:42
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7038; B01J29/7049; B01J29/7088; B01J29/72; B01J29/74; B01J29/7476; B01J29/76; B01J29/7676; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2884; C01B35/00; C01B35/08; C01B35/10; C01B35/1009; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; C10G29/00; C10G29/20; C10G29/205; C10G35/00; C10G35/04; C10G35/06; C10G35/095; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/36; B01J2229/42; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
68 words
A zeolite having a mole ratio of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide, selected from the group consisting of aluminum oxide, gallium oxide, iron oxide, boron oxide and mixtures thereof greater than about 20:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 2
Dependent Claim
68 words
A zeolite having a mole ratio of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide, selected from the group consisting of aluminum oxide, gallium oxide, iron oxide, boron oxide and mixtures thereof greater than about 20:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 3
Dependent Claim
64 words
A zeolite having a mole ratio of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron oxide and mixtures thereof greater than about 30:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 4
Dependent Claim
64 words
A zeolite having a mole ratio of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron oxide and mixtures thereof greater than about 30:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 5
Dependent Claim
46 words
A zeolite having a mole ratio of an oxide selected from silicon oxide to an oxide selected from aluminum oxide greater than about 30:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 6
Dependent Claim
46 words
A zeolite having a mole ratio of an oxide selected from silicon oxide to an oxide selected from aluminum oxide greater than about 30:1, having the X-ray diffraction lines of Table 2 and having equilibrium sorption capacities of greater than about 10 wt. % for n-hexane.
Claim 7
Dependent Claim
31 words
The zeolite according to claim 1 wherein said mole ratio of silicon oxide or germanium oxide to aluminum oxide, gallium oxide, iron oxide or boron oxide is about 20:1 to 200:1.
Claim 8
Dependent Claim
31 words
The zeolite according to claim 2 wherein said mole ratio of silicon oxide or germanium oxide to aluminum oxide, gallium oxide, iron oxide or boron oxide is about 30:1 to 100:1.
Claim 9
Dependent Claim
27 words
A zeolite according to claim 1 or 2 which has undergone ion exchange with hydrogen, ammonium, rare earth metal, Group IIA metal, or Group VIII metal ions.
Claim 10
Dependent Claim
25 words
A zeolite according to claim 1 or 2 where in rare earth metals, Group IIA metals, or group VIII metals are occluded in the zeolite.
Claim 11
Dependent Claim
89 words
A method for preparing the zeolite of claim 1 or 3, comprising: (a) preparing an aqueous mixture containing sources of an adamantane quaternary ammonium ion, an oxide selected from the group consisting of aluminum oxide, gallium oxide, iron oxide, boron oxide and mixtures thereof, and an oxide selected from the group consisting of silicon oxide, germanium oxide, and mixtures thereof; (b) maintaining the mixture at a temperature of at least 140° C. until the crystals of said zeolite form; (c) calcining the zeolite crystals; and (d) recovering said crystals.
Claim 12
Dependent Claim
77 words
The method according to claim 8 wherein the aqueous mixture has a composition in terms of mole ratios of oxides falling in the ranges: YO 2 /W 2 O 3 , 20:1 to 200:1, Q/YO 2 , 0.15:1 to 0.50:1; wherein Y is selected from the group consisting of silicon, germanium and mixtures thereof, W is selected from the group consisting of aluminum, gallium, iron, boron and mixtures thereof, and Q is an adamantane quaternary ammonium ion.
Claim 13
Dependent Claim
120 words
A method according to claim 8 or 9 wherein the adamantane quaternary ammonium ion is derived from an adamantane compound of the formula: ##STR3## wherein each of Y 1 , Y 2 and Y 3 independently is lower alkyl and A.sup.⊖ is an anion which is not detrimental to the formation of the zeolite; and each of R 1 , R 2 , and R 3 independently is hydrogen, or lower alkyl; and ##STR4## wherein each of R 4 , R 5 and R 6 independently is hydrogen or lower alkyl; each of Y 1 , y 2 and Y 3 independently is lower alkyl; and A.sup.⊖ is an anion which is not detrimental to the formation of the zeolite.
Claim 14
Dependent Claim
81 words
A method according to claim 10 wherein in formula (a) each of Y 1 , Y 2 and Y 3 independently is methyl or ethyl; A.sup.⊖ is OH or halogen; and each of R 1 , R 2 , and R 3 is hydrogen; and in formula (b) each of Y 1 , Y 2 and Y 3 independently is methyl or ethyl; A.sup.⊖ is OH, or halogen; and each of R 4 , R 5 and R 6 is hydrogen.
Claim 15
Dependent Claim
28 words
A method according to claim 11 wherein Y 1 , Y 2 and Y 3 are the same and each is methyl; and A.sup.⊖ is OH, or I.
Claim 16
Dependent Claim
20 words
A process for converting hydrocarbons comprising contacting a hydrocarbonaceous feed at hydrocarbon converting conditions with the zeolite of claim 1.
Claim 17
Dependent Claim
24 words
The process of claim 13 which is a hydrocracking process comprising contacting the hydrocarbon feedstock under hydrocracking conditions with the zeolite of claim 1.
Claim 18
Dependent Claim
24 words
The process of claim 13 which is a dewaxing process comprising contacting the hydrocarbon feedstock under dewaxing conditions with the zeolite of claim 1.
Claim 19
Dependent Claim
70 words
The process of claim 13 which is a process for preparing a product having an increased aromatics content comprising: (a) contacting a hydrocarbonaceous feed which comprises normal and slightly branched hydrocarbons having a boiling range above about 40° C. and less than about 200° C., under aromatic conversion conditions with the zeolite of claim 1, wherein said zeolite is substantially free of acidity; and (b) recovering an aromatic containing effluent.
Claim 20
Dependent Claim
14 words
The process of claim 16 wherein the zeolite contains a Group VIII metal component.
Claim 21
Dependent Claim
42 words
The process of claim 13 which is a catalytic cracking process comprising the step of contacting the hydrocarbon feedstock in a reaction zone under catalytic cracking conditions in the absence of added hydrogen with a catalyst comprising the zeolite of claim 1.
Claim 22
Dependent Claim
56 words
A process of claim 13 which is a catalytic cracking process comprising the step of contacting the hydrocarbon feedstock in a reaction zone under catalytic cracking conditions in the absence of added hydrogen with a catalyst composition comprising a component which is the zeolite of claim 1 and a large pore size crystalline aluminosilicate cracking component.
Claim 23
Dependent Claim
17 words
The process of claim 19 wherein the catalyst composition comprises a physical mixture of the two components.
Claim 24
Dependent Claim
16 words
The process of claim 13 wherein the two catalyst components are incorporated in an inorganic matrix.
Claim 25
Dependent Claim
60 words
The process of claim 13 which is a process for isomerizing an isomerization feed containing an aromatic C 8 stream of ethylbenzene or xylene isomers or mixtures thereof, wherein a more nearly equilibrium ratio of ortho-, meta-, and para-xylenes is obtained, said process comprising contacting said feed under isomerization conversion conditions with a catalyst comprising the zeolite of claim 1.
Claim 26
Dependent Claim
15 words
The process of claim 22 wherein para-xylene content is enhanced and ethylbenzene content is reduced.
Claim 27
Dependent Claim
14 words
The process of claim 22 wherein said zeolite contains a Group VIII metal component.
Claim 28
Dependent Claim
14 words
The process of claim 24 wherein said Group VIII metal is platinum or nickel.
Claim 29
Dependent Claim
17 words
The process of claim 22 wherein said aromatic C 8 mixture contains ethylbenzene, para-xylene, meta-xylene, and ortho-xylene.
Claim 30
Dependent Claim
30 words
The process of claim 13 which is an oligomerization process comprising contacting a hydrocarbon feed comprising straight and branched chain olefins under oligomerization conditions with a zeolite of claim 1.
Claim 31
Dependent Claim
38 words
The process of claim 13 which is a process for converting a C 2 -C 6 olefin or paraffin feedstream to aromatic compounds comprising contacting the feed material under aromatic conversion conditions with a zeolite of claim 1.
Claim 32
Dependent Claim
34 words
The process of claim 28 wherein the composition contains a catalyst metal component wherein said metal is selected from the group consisting of the Groups IB, IIB, VIII and IIIA of the Periodic Table.
Claim 33
Dependent Claim
10 words
The process of claim 29 wherein the metal is gallium.
Claim 34
Dependent Claim
10 words
The process of claim 29 wherein the metal is zinc.
Claim 35
Dependent Claim
43 words
The process of claim 13 which is a process for the catalytic conversion of lower aliphatic alcohols having 1 to 8 carbon atoms to form gasoline boiling range hydrocarbons which comprises contacting the alcohols under converting conditions with a zeolite of claim 1.
Claim 36
Dependent Claim
10 words
The process of claim 32 wherein the alcohol is methanol.
Claim 37
Dependent Claim
11 words
The process of claim 32 carried out in contact with H-SSZ-25.
References Cited (Backward Citations)
US4439409A
Cited
US4826667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |