US3749754A
Expired / Lapsed
US
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Hydroisomerization process with hydrogen faujasite containing a group viii metal
Assignee: Exxon Mobil Corp
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Filing: 1971-04-28
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Granted: 1973-07-31
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Expires: 1991-04-28
Abstract
Abstract AN IMPROVED PROCESS FOR HYDROISOMERIZING N-PARAFFINS IS PROVIDED COMPRISING SUBJECTING N-PARAFFINS TO HYDROISOMERIZATION CONDITIONS IN THE PRESENCE OF HYDROGEN AND A HYDROISOMERIZATION CATALYST COMPRISING A CRYSTALLINE ALUMINO-SILICATE ZEOLITE COMPOSITED WITH A GROUP VIII METAL, SAID CATALYST HAVING BEEN PRETREATED AND/OR CONTINUOUSLY TREATED WITH AN ORGANO HALOGEN COMPOUND OR A HYDROGEN HALIDE, AND RECOVERING THE RESULTING ISO-PARAFFIN.
Inventors
- 👤 P Eberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:22
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |