Patent US2918510A successfully refreshed from Google Patents.
US2918510A
Expired / Lapsed
US
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Process for isomerizing saturated hydrocarbons
Assignee: Pure Oil Co
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Filing: 1957-11-14
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Granted: 1959-12-22
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Expires: 1977-11-14
Abstract
No abstract record available.
Inventors
- 👤 Norman L Carr
- 👤 Oral L Beber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:54
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2724; C07C5/2767; C07C5/277; C07C5/2791; Y; Y10; Y10S; Y10S502/00; Y10S502/52; Y10S585/00; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A HYDROISOMERIZATION PROCESS WHEREIN AN ISOMERIZABLE SATURATED HYDROCARBON HAVING 4-7 CARBON ATOMS PER MOLECULE IS ISOMERIZED AT TEMPERATURTE WITHIN THE RANGE OF ABOUT 6000* TO 750*F. IN THE SUBSTANTIAL ABSENCE OF HYDROCRACKING UNDER ISOMERIZING CONDICTIONS OF PRESSURE AND H2/HYDROCARBONS MOL RATIO IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF A SOLID, REFRACTORY OXIDE COMPOSITED TO EVINCE ACIDIC PROPERTIES, AND HAVING HYDROCARBONS CRACKING ACTIVITY CO-PROMOTED WITH SMALL AMOUNTS OF METALLIC NICKLE AND AN OXIDE OF A METAL OF GROUP VI-A, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE HYDROISOMERIZARION PROCESS IN THE PRESENCE OF ADDED AMOUNTS OF WATER SUFFICIENT TO MITIGATE THE HYDROCRACKING TENDENCIES OF SAID CATALYST.
Claim 2
Dependent Claim
107 words
IN A HYDROISOMERIZATION PROCESS WHEREIN AN ISOMERIZABLE SATURATED HYDROCARBON HAVING 4-7 CARBON ATOMS PER MOLECULE IS ISOMERIZED AT TEMPERATURTE WITHIN THE RANGE OF ABOUT 6000* TO 750*F. IN THE SUBSTANTIAL ABSENCE OF HYDROCRACKING UNDER ISOMERIZING CONDICTIONS OF PRESSURE AND H2/HYDROCARBONS MOL RATIO IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF A SOLID, REFRACTORY OXIDE COMPOSITED TO EVINCE ACIDIC PROPERTIES, AND HAVING HYDROCARBONS CRACKING ACTIVITY CO-PROMOTED WITH SMALL AMOUNTS OF METALLIC NICKLE AND AN OXIDE OF A METAL OF GROUP VI-A, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE HYDROISOMERIZARION PROCESS IN THE PRESENCE OF ADDED AMOUNTS OF WATER SUFFICIENT TO MITIGATE THE HYDROCRACKING TENDENCIES OF SAID CATALYST.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |