Patent US3284344A successfully refreshed from Google Patents.
US3284344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocatalytic refining of chlorine containing lubricating oils
Assignee: BP PLC
•
Filing: 1963-11-14
•
Granted: 1966-11-08
•
Expires: 1983-11-14
Abstract
No abstract record available.
Inventors
- 👤 Demeester Jacques
- 👤 Helion Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:53
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/881; C; C10; C10G; C10G2400/00; C10G2400/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR THE CATALYTIC TREATMENT OF A LUBRICATING OIL CONTAINING MINOR AMOUNTS OF CHLORINE CONTAINING MATERIAL THEREIN, WHIWH TENDS TO DEACTIVATE THE CATALYST, SO AS TO PREVENT CATALYST DEACTIVATION THEREBY AND TO PRODUCE AN OIL HAVING IMPROVED COLOR STABILITY WITHOUT A MATERIAL CHANGE IN THE VISCOSITY THEREOF, SAID PRICESS COMPRISING CONTACTING THE LUBRICATING OIL WITH A CATALYST COMPRISING THE OXIDES OF COBALT AND MOLYBDENUM OF A REFRACTORY OXIDE SUPPORT A TEMPERATURE OF FROM 150-340*C. AT A PRESSURE OF FROM 5-80 ATMOSPHERES, IN THE PRESENCE OF HYDROGEN, AND IN THE PRESENCE OF FROM 0.1 TO ABOUT 0.75% BY WEIGHT OF OIL TREATED OF AN ADDED CHLORINE SUPPRESSING COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND AN AMINE HAVING FROM 1-4 CARBON ATOMS, SAID CHLORINE SUPRESSING COMPOUND BEING ADDED IN THE ABOVE AMOUNTS FROM THE BEGINNING OF THE TREATMENT.
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE CATALYTIC TREATMENT OF A LUBRICATING OIL CONTAINING MINOR AMOUNTS OF CHLORINE CONTAINING MATERIAL THEREIN, WHIWH TENDS TO DEACTIVATE THE CATALYST, SO AS TO PREVENT CATALYST DEACTIVATION THEREBY AND TO PRODUCE AN OIL HAVING IMPROVED COLOR STABILITY WITHOUT A MATERIAL CHANGE IN THE VISCOSITY THEREOF, SAID PRICESS COMPRISING CONTACTING THE LUBRICATING OIL WITH A CATALYST COMPRISING THE OXIDES OF COBALT AND MOLYBDENUM OF A REFRACTORY OXIDE SUPPORT A TEMPERATURE OF FROM 150-340*C. AT A PRESSURE OF FROM 5-80 ATMOSPHERES, IN THE PRESENCE OF HYDROGEN, AND IN THE PRESENCE OF FROM 0.1 TO ABOUT 0.75% BY WEIGHT OF OIL TREATED OF AN ADDED CHLORINE SUPPRESSING COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND AN AMINE HAVING FROM 1-4 CARBON ATOMS, SAID CHLORINE SUPRESSING COMPOUND BEING ADDED IN THE ABOVE AMOUNTS FROM THE BEGINNING OF THE TREATMENT.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |