US4559213A
Expired / Lapsed
US
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Synthesis of ZSM-12 zeolite
Assignee: Mobil Oil AS
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Filing: 1984-09-17
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Granted: 1985-12-17
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Expires: 2004-09-17
Abstract
Abstract There is disclosed a process for preparing a ZSM-12 crystalline zeolite wherein the organic template used in the synthesis has the formula: <IMAGE> wherein n=4-10. The template, designated herein DABCO-Cn-diquat, is obtained from a dihalide salt of the template or from a hydroxide thereof.
Inventors
- 👤 Gunter H. Kuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:06
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/42; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7034; Y; Y10; Y10S; Y10S423/00; Y10S423/33
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
A process for preparing a siliceous porous crystalline ZSM-12 zeolite material having the X-ray diffraction pattern of Table II, which comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, RN + and water, and having the following composition, in terms of mole ratios of oxides: OH - /YO 2 =0.10 to 0.40 RN + /(RN + +M)=0.2 to 0.95 H 2 O/OH - =20 to 300 YO 2 /W 2 O 3 =60 to 5000 wherein Y is silicon or germanium, (RN) 2 2+ is DABCO-C n -diquat, having the formula: ##STR5## wherein n is 4-10, M is an alkali or alkaline earth metal, and W is aluminum or gallium, and maintaining the mixture at crystallization conditions until crystals of said zeolite are formed.
Claim 2
Dependent Claim
132 words
A process for preparing a siliceous porous crystalline ZSM-12 zeolite material having the X-ray diffraction pattern of Table II, which comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, RN + and water, and having the following composition, in terms of mole ratios of oxides: OH - /YO 2 =0.10 to 0.40 RN + /(RN + +M)=0.2 to 0.95 H 2 O/OH - =20 to 300 YO 2 /W 2 O 3 =60 to 5000 wherein Y is silicon or germanium, (RN) 2 2+ is DABCO-C n -diquat, having the formula: ##STR5## wherein n is 4-10, M is an alkali or alkaline earth metal, and W is aluminum or gallium, and maintaining the mixture at crystallization conditions until crystals of said zeolite are formed.
Claim 3
Dependent Claim
58 words
A process of claim 1 wherein the mixture has the following composition: OH - /YO 2 =0.15 to 0.30 RN + /(RN + +M)=0.29 to 0.90 H 2 O/OH - =50 to 200 YO 2 /W 2 O 3 =60 to 500 wherein Y, (RN) 2 2+ , M and W are the same as in claim 1.
Claim 4
Dependent Claim
58 words
A process of claim 2 wherein the mixture has the following composition: OH - /YO 2 =0.17 to 0.25 RN + /(RN + +M)=0.30 to 0.50 H 2 O/OH - =80 to 150 YO 2 /W 2 O 3 =90 to 300 wherein Y, (RN) 2 2+ , M and W are the same as in claim 1.
Claim 5
Dependent Claim
11 words
A process of claim 3 wherein M is potassium or sodium.
Claim 6
Dependent Claim
9 words
A process of claim 4 wherein M is sodium.
Claim 7
Dependent Claim
44 words
A process of claim 5 wherein the DABCO-C n -diquat is derived from the halogen salt thereof, obtained by reacting two molecules of diazabicyclo(2,2,2)octane with one molecule of dihalo-n-alkane of the formula: X--(CH.sub.2).sub.n --X wherein X is fluorine, chlorine, bromine or iodine and n=4-10.
Claim 8
Dependent Claim
9 words
A process of claim 6 wherein X is bromine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |