US2671047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining hydrocarbon materials with so2 and bf3
Assignee: Standard Oil Co
•
Filing: 1951-09-29
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Granted: 1954-03-02
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Expires: 1971-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert C Arnold
- 👤 Arthur P Lien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:23
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
A PROCESS FOR REFINING A HYDROCARBON MATERIAL, WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MATERIAL WITH LIQUID SULFUR DIOXIDE IN AN AMOUNT IN EXCESS OF ITS SOLUBILITY IN SAID HYDROCARBON MATERIAL UNDER THE CONDITIONS OF SAID CONTACTING AND WITH BF3 AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT -85* C. UNDER A PRESSURE SUFFICIENT AT LEAST TO MAINTAIN THE LIQUID PHASE, AND THEREAFTER SEPARATING A REFINED HYDROCABON MATERIAL AND AN EXTRACT SOLUTION IN LIQUID SULFUR DIOXIDE AND BF3.
Claim 2
Dependent Claim
78 words
A PROCESS FOR REFINING A HYDROCARBON MATERIAL, WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MATERIAL WITH LIQUID SULFUR DIOXIDE IN AN AMOUNT IN EXCESS OF ITS SOLUBILITY IN SAID HYDROCARBON MATERIAL UNDER THE CONDITIONS OF SAID CONTACTING AND WITH BF3 AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT -85* C. UNDER A PRESSURE SUFFICIENT AT LEAST TO MAINTAIN THE LIQUID PHASE, AND THEREAFTER SEPARATING A REFINED HYDROCABON MATERIAL AND AN EXTRACT SOLUTION IN LIQUID SULFUR DIOXIDE AND BF3.
Claim 3
Dependent Claim
95 words
A PROCESS FOR DESULFURIZING A SULFUR-CONTAINING HYDROCARBON MATERIAL, WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MATERIAL WITH BETWEEN ABOUT 15 AND ABOUT 200 PERCENT BY VOLUME OF LIQUID SULFUR DIOXIDE AND WITH BF3 IN AN AMOUNT BETWEEN ABOUT 1 AND ABOUT 3 MOLS PER GRAM ATOM OF SULFUR CONTAINED IN SAID HYDROCARBON MATERIAL AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT -85* C. UNDER A PRESSURE SUFFICIENT AT LEAST TO MAINTAIN THE LIQUID PHASE, AND THEREAFTER SEPARATING A SUBSTANTIALLY DESULFURIZED HYDROCARBON MATERIAL AND AN EXTRACT SOLUTION OF SULFUR COMPOUNDS IN LIQUID SULFUR DIOXIDE AND BF3.
Claim 4
Dependent Claim
95 words
A PROCESS FOR DESULFURIZING A SULFUR-CONTAINING HYDROCARBON MATERIAL, WHICH PROCESS COMPRISES CONTACTING SAID HYDROCARBON MATERIAL WITH BETWEEN ABOUT 15 AND ABOUT 200 PERCENT BY VOLUME OF LIQUID SULFUR DIOXIDE AND WITH BF3 IN AN AMOUNT BETWEEN ABOUT 1 AND ABOUT 3 MOLS PER GRAM ATOM OF SULFUR CONTAINED IN SAID HYDROCARBON MATERIAL AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT -85* C. UNDER A PRESSURE SUFFICIENT AT LEAST TO MAINTAIN THE LIQUID PHASE, AND THEREAFTER SEPARATING A SUBSTANTIALLY DESULFURIZED HYDROCARBON MATERIAL AND AN EXTRACT SOLUTION OF SULFUR COMPOUNDS IN LIQUID SULFUR DIOXIDE AND BF3.
References Cited (Backward Citations)
US2069329A
Cited
US2495851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |