US3663431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-phase hydrocarbon conversion system
Assignee: Union Oil Company of California
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Filing: 1969-10-15
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Granted: 1972-05-16
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Expires: 1989-10-15
Abstract
Abstract HYDROCARBONS ARE HYDROCRACKED,HYDROFINED, HYDROGENATED AND/OR DEMETALLIZERD BY INTIMATE CONTACTING AT ELEVATED TEMPERATURES IN THE PRESENCE OF HYDROGEN WITH AN AQUEOUS DISPERSION OF A SULFIDE OF MOLYBDENUM, VANADIUM AND/OR RHENIUM. THE CATALYTICALLY ACTIVE COMPONENTS ARE CONVENIENTLY PRODUCED IN THE AQUEOUS PHASE BY REDUCTION AND/OR SULFURIZATION OF THE CORRESPONDING WATER SOLUBLE SULFIDES, OXIDES, ACIDS OR SALTS. THESE METHODS ARE PARTICULARLY ATTRACTIVE FOR THE SELECTIVE DEMETALLZATION AND MOLECULAR WEIGHT REDUCTION AND/OR REMOVAL OF ASPHALTENES AND RESINS.
Inventors
- 👤 Robert E Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:21
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/10; C10G49/12; B; B01; B01J; B01J27/00; B01J27/02; B01J27/04; B01J27/047; B01J27/051; C10G49/02
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |