US4011278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of polar compounds using a zsm-5 zeolite catalyst
Assignee: Mobil Oil AS
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Filing: 1975-02-03
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Granted: 1977-03-08
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Expires: 1995-02-03
Abstract
Abstract Conversion, e.g. dehydration, of aliphatic organic oxygenates having up to about 6 carbon atoms by contact with a crystalline aluminosilicate zeolite, preferably ZSM-5, having a silica to alumina ratio substantially greater than 10, at a temperature of about 70° to 1400° F, depending upon the exact nature of the reactant and product.
Inventors
- 👤 Charles J. Plank
- 👤 Edward J. Rosinski
- 👤 George T. Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:12
CPC Classifications
C; C07; C07C; C07C323/00; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; B01J29/088; B01J29/18; B01J29/40; B01J29/70; B01J29/7007; C07C1/00; C07C1/20; C07C1/24; C07C29/00; C07C29/09; C07C29/10; C07C29/103; C07C29/106; C07C29/36; C07C29/38; C07C29/44; C07C37/00; C07C37/01; C07C37/055; C07C37/11; C07C37/115; C07C37/14; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/08; B01J2229/00; B01J2229/10; B01J2229/16; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2601/00; C07C2601/12; C07C2601/14; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
73 words
In the process of dehydrating an alcohol, by contacting it at a temperature of about 70° to 1400° F with a solid crystalline aluminosilicate zeolite acidic catalyst having a pore size sufficient to permit the diffusion of said alcohol thereinto and to permit dehydration therein, the improvement whereby carrying out said dehydration with exceptional catalyst stability, which comprises utilizing said zeolite having a silica to alumina ratio substantially greater than 10 to 1.
Claim 2
Dependent Claim
73 words
In the process of dehydrating an alcohol, by contacting it at a temperature of about 70° to 1400° F with a solid crystalline aluminosilicate zeolite acidic catalyst having a pore size sufficient to permit the diffusion of said alcohol thereinto and to permit dehydration therein, the improvement whereby carrying out said dehydration with exceptional catalyst stability, which comprises utilizing said zeolite having a silica to alumina ratio substantially greater than 10 to 1.
Claim 3
Dependent Claim
16 words
The process claimed in claim 1 wherein said alcohol contains up to about 6 carbon atoms.
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) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |