US2900425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization process
Assignee: Universal Oil Products Co
•
Filing: 1956-08-10
•
Granted: 1959-08-18
•
Expires: 1976-08-10
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 Haensel Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:36
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; C07C5/2767; C07C5/277; C07C5/2791; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR THE ISOMERIZATION OF AN ISOMERIZABLE SATURATED HYDROCARBON WHICH COMPRISES CONTACTING SAID HYDROCARBON AT AN ISOMERIZATION TEMPERATURE WITH A CATALYST COMPRISING CALEINED ALUMINA, A PLATINUM GROUP METAL, AND A FRIEDEL-CRAFTS METAL HALIDE IN WHICH THE HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, SAID CALCINED ALUMINA CONTAINING HYDROXYL GROUPS REACTABLE WIOTH AT LEAST A PORTION OF SAID METAL HALIDE, SAID CATALYST HAVING BEEN PREPARED BY COMPOSITING THE PLATINUM GROUP METAL WITH THE ALUMINA, DRYING THE RESULTANT COMPOSITE AND SUBSEQUENTLY IMPREGNATING THE DRIED COMPOSITE WITH SAID METAL HALIDE IN ANHYDROUS FORM UNDER CONDITIONS TO REACT SAID HYDROXYL GROUPS AND AT LEAST A PORTION OF SAID METAL HALIDE WITH EVOLUTION OF HYDROGEN HALIDE.
Claim 2
Dependent Claim
116 words
A PROCESS FOR THE ISOMERIZATION OF AN ISOMERIZABLE SATURATED HYDROCARBON WHICH COMPRISES CONTACTING SAID HYDROCARBON AT AN ISOMERIZATION TEMPERATURE WITH A CATALYST COMPRISING CALEINED ALUMINA, A PLATINUM GROUP METAL, AND A FRIEDEL-CRAFTS METAL HALIDE IN WHICH THE HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE, SAID CALCINED ALUMINA CONTAINING HYDROXYL GROUPS REACTABLE WIOTH AT LEAST A PORTION OF SAID METAL HALIDE, SAID CATALYST HAVING BEEN PREPARED BY COMPOSITING THE PLATINUM GROUP METAL WITH THE ALUMINA, DRYING THE RESULTANT COMPOSITE AND SUBSEQUENTLY IMPREGNATING THE DRIED COMPOSITE WITH SAID METAL HALIDE IN ANHYDROUS FORM UNDER CONDITIONS TO REACT SAID HYDROXYL GROUPS AND AT LEAST A PORTION OF SAID METAL HALIDE WITH EVOLUTION OF HYDROGEN HALIDE.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |