US3201344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining hydrocarbon lubricating oils
Assignee: Universal Oil Products Co
•
Filing: 1962-11-29
•
Granted: 1965-08-17
•
Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Donald B Broughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:13
CPC Classifications
C; C10; C10G; C10G67/00; C10G67/02; C10G67/14; C10G2400/00; C10G2400/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR RECOVERING THE COMPONENTS OF LOWEST VISCOSITY FROM A HYDROCARBON MIXTURE BOILING IN THE LUBRICATING OIL RANGE WHICH COMPRISES REACTION SAID HYDROCARBON MIXTURE WITH HYDROGEN AT HYDROGENATION REACTION CONDITIONS SUFFICIENT TO SATURATE SUBSTANTIALLY ALL UNSATURATED BONDS IN THE HYDROCARBON COMPONENTS THEREOF, THEREAFTER CONTACTING SAID MIXTURE WITH A DEHYDRATED, ZEOLITIC, METAL ALUMINOSILICATE MOLECULAR SIEVE CONTAINING PORES WHICH PERMIT THE ENTRY OF HYDROCARBONS HAVING A MEAN MOLECULAR DIAMETER OF FROM ABOUT 10 TO ABOUT 13 ANGSTOM UNITS, WITHDRAWING FROM THE RESULTING MOLECULAR SIEVE CONTAINING SELECTIVELY SORBED ADSORBATE COMPONENT A RAFFINATE COMPRISING NONSORBED HYDROCARBON COMPONENT OF THE MIXTURE, AND CONTACTING SAID MOLECULAR SIEVE PARTICLES CONTAINING ADSORBATE WITH A DESORBENT FOR THE SORBED HYDROCARBON COMPONENT AT DESORPTION CONDITIONS WHEREBY SAID ADSORBATE IS DISPLACED FROM SAID MOLECULAR SIEVE.
Claim 2
Dependent Claim
125 words
A PROCESS FOR RECOVERING THE COMPONENTS OF LOWEST VISCOSITY FROM A HYDROCARBON MIXTURE BOILING IN THE LUBRICATING OIL RANGE WHICH COMPRISES REACTION SAID HYDROCARBON MIXTURE WITH HYDROGEN AT HYDROGENATION REACTION CONDITIONS SUFFICIENT TO SATURATE SUBSTANTIALLY ALL UNSATURATED BONDS IN THE HYDROCARBON COMPONENTS THEREOF, THEREAFTER CONTACTING SAID MIXTURE WITH A DEHYDRATED, ZEOLITIC, METAL ALUMINOSILICATE MOLECULAR SIEVE CONTAINING PORES WHICH PERMIT THE ENTRY OF HYDROCARBONS HAVING A MEAN MOLECULAR DIAMETER OF FROM ABOUT 10 TO ABOUT 13 ANGSTOM UNITS, WITHDRAWING FROM THE RESULTING MOLECULAR SIEVE CONTAINING SELECTIVELY SORBED ADSORBATE COMPONENT A RAFFINATE COMPRISING NONSORBED HYDROCARBON COMPONENT OF THE MIXTURE, AND CONTACTING SAID MOLECULAR SIEVE PARTICLES CONTAINING ADSORBATE WITH A DESORBENT FOR THE SORBED HYDROCARBON COMPONENT AT DESORPTION CONDITIONS WHEREBY SAID ADSORBATE IS DISPLACED FROM SAID MOLECULAR SIEVE.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |