Patent US3112351A successfully refreshed from Google Patents.
US3112351A
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Isomerization of hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1961-09-05
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Granted: 1963-11-26
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Hoekstra James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:04
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/38; B01J23/40; B01J27/00; B01J27/06; B01J27/128; B01J27/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR PRODUCING BRANCHED CHAIN HYDROCARBONS WHICH COMPRISES ISOMERIZING NORMAL HYDROCARBONS IN THE PRESENCE OF A CATALYST PREPARED BY TREATING A COMPOSITE OF A REFRACTORY INORGANIC OXIDE SUPPORT CONTAINING A PLATINUM GROUP METAL, THE PLATINUM GROUP METAL BEING CHARACTERIZED BY BEING IN A REDUCED VALENCE STATE, WITH A HYDROHALIDE AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 500* TO ABOUT 650* C., THEREAFTER VAPORIZING A FRIEDELCRAFTS METAL HALIDE ONTO SAID COMPOSITE, AND HEATING THE THUS FORMED COMPOSITE AT A TEMPERATURE ABOVE 400* C. FOR A TIME SUFFICIENT TO REMOVE THEREFROM ANY UNREACTED FRIEDEL-CRAFTS METAL HALIDE.
Claim 2
Dependent Claim
97 words
A PROCESS FOR PRODUCING BRANCHED CHAIN HYDROCARBONS WHICH COMPRISES ISOMERIZING NORMAL HYDROCARBONS IN THE PRESENCE OF A CATALYST PREPARED BY TREATING A COMPOSITE OF A REFRACTORY INORGANIC OXIDE SUPPORT CONTAINING A PLATINUM GROUP METAL, THE PLATINUM GROUP METAL BEING CHARACTERIZED BY BEING IN A REDUCED VALENCE STATE, WITH A HYDROHALIDE AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 500* TO ABOUT 650* C., THEREAFTER VAPORIZING A FRIEDELCRAFTS METAL HALIDE ONTO SAID COMPOSITE, AND HEATING THE THUS FORMED COMPOSITE AT A TEMPERATURE ABOVE 400* C. FOR A TIME SUFFICIENT TO REMOVE THEREFROM ANY UNREACTED FRIEDEL-CRAFTS METAL HALIDE.
References Cited (Backward Citations)
US2924629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |