US3950496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic zeolite ZSM-18
Assignee: Mobil Oil AS
•
Filing: 1975-03-27
•
Granted: 1976-04-13
•
Expires: 1995-03-27
Abstract
Abstract A new crystalline aluminosilicate zeolite is disclosed which has the following formula in terms of mol ratios of oxides on a water-free basis:
Inventors
- 👤 Julius Ciric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:29
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/12; C07D487/14; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7049; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
53 words
A crystalline synthetic aluminosilicate having the composition expressed in terms of mole ratios of oxides 0.9 ± 0.3 M.sub.2/n O: Al.sub.2 O.sub. 3 : z SiO.sub.2 wherein M represents at least one cation having a valence n and z is 10-30, said aluminosilicate having the x-ray diffraction lines as shown in Table 1.
Claim 2
Dependent Claim
53 words
A crystalline synthetic aluminosilicate having the composition expressed in terms of mole ratios of oxides 0.9 ± 0.3 M.sub.2/n O: Al.sub.2 O.sub. 3 : z SiO.sub.2 wherein M represents at least one cation having a valence n and z is 10-30, said aluminosilicate having the x-ray diffraction lines as shown in Table 1.
Claim 3
Dependent Claim
24 words
A thermally treated aluminosilicate as defined in claim 1 wherein said thermal treatment is carried out at about 100°-600°C for at least 1 hour.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein at least some M is sodium.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein at least some M is rare earth.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein at least some M is a hydrogen ion.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein M is a mixture of hydrogen and metal ions.
Claim 8
Dependent Claim
22 words
The composition of claim 1 wherein at least some M is a tris-quaternary ammonium ion derived from 1,3,4,6,7,9-hexahydro-2,2,5,5,5,8,8-hexamethyl-2H-benzo (1,2,-C:-3,4-C' :5,6-C") tripyrolium trihydroxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |