US2665246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic sludge precipitation
Assignee: Sunoco Inc
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Filing: 1950-03-10
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Granted: 1954-01-05
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Expires: 1970-03-10
Abstract
No abstract record available.
Inventors
- 👤 John R Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:02
CPC Classifications
C; C10; C10G; C10G32/00; C10G32/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
METHOD OF TREATING HYDROCARBONS CONTAINING DELETERIOUS MATERIALS PRECIPITABLE BY CONTACT WITH BF3 WHICH COMPRISES CONTACTING HYDROCARBONS CONTAINING SAID DELETERIOUS MATERIALS WITH BF3 AS THE SOLE TREATING AGENT TO FORM A FINELY DIVIDED SLUDGE CONTAINING SAID DELETERIOUS MATERIALS, AND SUBJECTING SAID HYDROCARBONS ADMIXED WITH THE BF3 FORMED SLUDGE IN THE LIQUID PHASE AT A SLUDGE-REMOVING TEMPERATURE OF FROM 0* C. TO 60* C. TO CONTACT WITH AN ELECTRODE PROVIDING A CONVERGENT ELECTROSTATIC FIELD HAVING A POTENTIAL GRADIENT OF AT LEAST 5.000 VOLTS PER CENTIMETER WHEREBY THE BF3 FORMED SLUDGE DEPOSITS ON SAID ELECTRODE, AND RECOVING HYDROCARBONS FREE FROM THE BF3 FORMED SLUDGE.
Claim 2
Dependent Claim
101 words
METHOD OF TREATING HYDROCARBONS CONTAINING DELETERIOUS MATERIALS PRECIPITABLE BY CONTACT WITH BF3 WHICH COMPRISES CONTACTING HYDROCARBONS CONTAINING SAID DELETERIOUS MATERIALS WITH BF3 AS THE SOLE TREATING AGENT TO FORM A FINELY DIVIDED SLUDGE CONTAINING SAID DELETERIOUS MATERIALS, AND SUBJECTING SAID HYDROCARBONS ADMIXED WITH THE BF3 FORMED SLUDGE IN THE LIQUID PHASE AT A SLUDGE-REMOVING TEMPERATURE OF FROM 0* C. TO 60* C. TO CONTACT WITH AN ELECTRODE PROVIDING A CONVERGENT ELECTROSTATIC FIELD HAVING A POTENTIAL GRADIENT OF AT LEAST 5.000 VOLTS PER CENTIMETER WHEREBY THE BF3 FORMED SLUDGE DEPOSITS ON SAID ELECTRODE, AND RECOVING HYDROCARBONS FREE FROM THE BF3 FORMED SLUDGE.
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |