US4331643A
Expired / Lapsed
US
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Use of diazobicyclooctane (DABCO) as a template in zeolite synthesis
Assignee: Mobil Oil AS
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Filing: 1980-12-15
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Granted: 1982-05-25
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Expires: 2000-12-15
Abstract
Abstract A process for preparing a ZSM-4 type crystalline zeolite material wherein 1,4-diazobicyclo (2.2.2) octane (DABCO), triethylenediamine (TED) is used as the source of an organic cation.
Inventors
- 👤 Mae K. Rubin
- 👤 Edward J. Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/34; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7011; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/509; Y10S502/511
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
In a process of producing a ZSM-4 type synthetic crystalline aluminosilicate zeolite having the X-ray diffraction pattern of Table 1, which comprises preparing a reaction mixture comprised of sources of alkali metal, alumina, silica, at least one organic nitrogen-containing compound and water, and maintaining said mixture under crystallization conditions until crystals and said zeolite are formed, the improvement wherein said at least one organic nitrogen-containing compound is triethylenediamine.
Claim 2
Dependent Claim
68 words
In a process of producing a ZSM-4 type synthetic crystalline aluminosilicate zeolite having the X-ray diffraction pattern of Table 1, which comprises preparing a reaction mixture comprised of sources of alkali metal, alumina, silica, at least one organic nitrogen-containing compound and water, and maintaining said mixture under crystallization conditions until crystals and said zeolite are formed, the improvement wherein said at least one organic nitrogen-containing compound is triethylenediamine.
Claim 3
Dependent Claim
49 words
In a reaction mixture comprised of sources of alkali metal, alumina, silica, at least one organic nitrogen-containing compound and water, which upon crystallization yields a synthetic crystalline aluminosilicate zeolite having the X-ray diffraction pattern of Table 1, the improvement wherein said at least one organic nitrogen-containing compound is triethylenediamine.
Claim 4
Dependent Claim
49 words
In a reaction mixture comprised of sources of alkali metal, alumina, silica, at least one organic nitrogen-containing compound and water, which upon crystallization yields a synthetic crystalline aluminosilicate zeolite having the X-ray diffraction pattern of Table 1, the improvement wherein said at least one organic nitrogen-containing compound is triethylenediamine.
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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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |