US3832449A
Expired / Lapsed
US
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Crystalline zeolite zsm{14 12
Assignee: Mobil Oil AS
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Filing: 1971-03-18
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Granted: 1974-08-27
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Expires: 1991-03-18
Abstract
Abstract A crystalline zeolite designated ZSM -12 having the following composition expressed as mole ratios of oxides: 1.0 + OR - 0.4 M2/nO . W2O . 20-100 YO2 . ZH2O where M is at least one cation and n is the valence thereof, W is aluminum or gallium, Y is silicon or germanium, and Z is a value ranging from 0 to 60. In a preferred synthesized form, M is a mixture of alkali metal cations, especially sodium, and tetraalkylammonium cations. These zeolites are characterized by a specified X-ray powder diffraction pattern. Catalytically active forms of said zeolites are used in a wide variety of hydrocarbon conversion reactions.
Inventors
- 👤 E Rosinski
- 👤 M Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7034; C; C01; C01B; C01B39/00; C01B39/02; C01B39/42; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G25/00; C10G25/02; C10G25/03; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10G45/00; C10G45/58; C10G45/60; C10G45/64; C10G49/00; C10G49/02; C10G49/08; Y; Y10; Y10S; Y10S423/00; Y10S423/33
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
36 words
A crystalline zeolite according to claim 1 Having the following lattice parameters: ao 12.6 + or - 0.2A. bo 11.1 + or - 0.2A. co 24.4 + or - 0.4A. Beta 108 + or - 1*.
Claim 2
Dependent Claim
64 words
A crystalline zeolite according to claim 1 having a composition, in terms of mole ratios of oxides as follows: 1.0 + or - 0.4 (xR2O + (1-x) M2/nO) . Al2O3 . 20-100 SiO2 . zH2O wherein R is a tetraethylammonium cation, M is an alkali metal cation, z is between 0 and 60 and x is greater than 0 but not more than 1.
Claim 3
Dependent Claim
25 words
A crystalline zeolite according to claim 1 wherein M comprises a cation selected from the group consisting of alkylammonium, metal, ammonium, hydrogen and mixtures thereof.
Claim 4
Dependent Claim
20 words
A crystalline zeolite according to claim 4 where the silica to alumina ratio is between about 40 and about 95.
Claim 5
Dependent Claim
12 words
A crystalline zeolite according to claim 4 wherein the metal is aluminum.
Claim 6
Dependent Claim
14 words
A crystalline zeolite according to claim 4 wherein the metal is a rare earth.
Claim 7
Dependent Claim
22 words
A crystalline zeolite according to claim 4 wherein the metal is selected from the group consisting of Group II and VIII metals.
References Cited (Backward Citations)
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US3578398A
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |