Patent US3036968A successfully refreshed from Google Patents.
US3036968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of metals and nitrogen from hydrocarbon feed stocks
Assignee: Universal Oil Products Co
•
Filing: 1960-02-08
•
Granted: 1962-05-29
•
Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 John G Gatsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:03
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR TREATING A HYDROCARBON FRACTION CONTAINING HEAVY METAL AND NITROGENOUS CONTAMINANTS WHICH COMPRISES MIXING SAID FRACTION WITH FROM 1 TO 1 TO ABOUT 12 TO 1 VOLUMES PER VOLUME OF A LIQUID PARAFFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PROPANE AND NORMAL-BUTANE CONTAINING ANHYDROUS HYDROGEN FLUORIDE IN AN AMOUNT NOT EXCEEDING ABOUT 1 PERCENT BY WEIGHT AND ONLY SUFFICIENT TO REACT WITH SAID CONTAMINANTS, THEREBY PRECIPITATING SAID CONTAMINANTS WHILE AVOIDING THE FORMATION OF A DUAL-PHASE LIQUID SYSTEM,AND THEREAFTER SEPARATING THE RESULTANT PRECIPITATE OF METALLIC AND NITROGENOUS CONTAMINANTS FROM THE TREATED HYDROCARBON FRACTION.
Claim 2
Dependent Claim
95 words
A PROCESS FOR TREATING A HYDROCARBON FRACTION CONTAINING HEAVY METAL AND NITROGENOUS CONTAMINANTS WHICH COMPRISES MIXING SAID FRACTION WITH FROM 1 TO 1 TO ABOUT 12 TO 1 VOLUMES PER VOLUME OF A LIQUID PARAFFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PROPANE AND NORMAL-BUTANE CONTAINING ANHYDROUS HYDROGEN FLUORIDE IN AN AMOUNT NOT EXCEEDING ABOUT 1 PERCENT BY WEIGHT AND ONLY SUFFICIENT TO REACT WITH SAID CONTAMINANTS, THEREBY PRECIPITATING SAID CONTAMINANTS WHILE AVOIDING THE FORMATION OF A DUAL-PHASE LIQUID SYSTEM,AND THEREAFTER SEPARATING THE RESULTANT PRECIPITATE OF METALLIC AND NITROGENOUS CONTAMINANTS FROM THE TREATED HYDROCARBON FRACTION.
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) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |