US3267020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing spray oil
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-06-15
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Granted: 1966-08-16
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward L Wilson
- 👤 Ii Thomas G Lipscomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:21
CPC Classifications
C; C10; C10G; C10G67/00; C10G67/02; C10G67/04; C10G67/0409; C10G67/0436; C10G67/0418; C10G69/00; C10G69/02; C10G69/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD FOR PRODUCING A SPRAY OIL WHICH COMPRISES EXTRACTING A CATALYTIC CRACKING CYCLE STOCK HAVING 10% DISTILLING BETWEEN ABOUT 360*F. TO 420*F. AND 90% DISTILLING BETWEEN ABOUT 420*F. TO 520*F. AS DETERMINED BY THE ASTM D-1160 METHOD AT 10 MM. PRESSURE WITH A SOLVENT HAVING A PREFERENTIAL SELECTIVITY FOR AROMATIC CONSTITUENTS AS COMPARED TO PARAFFINIC CONSTITUENTS TO FORM A RAFFINATE PHASE AND AN EXTRACT PHASE, SEPARATING SAID PHASES, HYDROFINING SAID RAFFINATE PHASE AFTER REMOVAL OF SOLVENT THEREFROM, DEWAXING SAID HYDROFINED RAFFINATE PHASE, AND RECOVERING SATURATED SPRAY OIL FROM SAID DEWAXED HYDROCARBON RAFFINATE PHASE CONSISTING ESSENTIALLY OF A HYDROCARBON FRACTION HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM ABOUT 300 TO ABOUT 380 AND HAVING AN ASTM UNSULFONATED RESIDUE OF AT LEAST ABOUT 95%.
Claim 2
Independent Claim
124 words
A METHOD FOR PRODUCING A SPRAY OIL WHICH COMPRISES EXTRACTING A CATALYTIC CRACKING CYCLE STOCK HAVING 10% DISTILLING BETWEEN ABOUT 360*F. TO 420*F. AND 90% DISTILLING BETWEEN ABOUT 420*F. TO 520*F. AS DETERMINED BY THE ASTM D-1160 METHOD AT 10 MM. PRESSURE WITH A SOLVENT HAVING A PREFERENTIAL SELECTIVITY FOR AROMATIC CONSTITUENTS AS COMPARED TO PARAFFINIC CONSTITUENTS TO FORM A RAFFINATE PHASE AND AN EXTRACT PHASE, SEPARATING SAID PHASES, HYDROFINING SAID RAFFINATE PHASE AFTER REMOVAL OF SOLVENT THEREFROM, DEWAXING SAID HYDROFINED RAFFINATE PHASE, AND RECOVERING SATURATED SPRAY OIL FROM SAID DEWAXED HYDROCARBON RAFFINATE PHASE CONSISTING ESSENTIALLY OF A HYDROCARBON FRACTION HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM ABOUT 300 TO ABOUT 380 AND HAVING AN ASTM UNSULFONATED RESIDUE OF AT LEAST ABOUT 95%.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |