Patent US1611960A successfully refreshed from Google Patents.
Patent US3147093A successfully refreshed from Google Patents.
US3147093A
Expired / Lapsed
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Recovery of carbon from water
Assignee: Texaco Inc
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Filing: 1962-03-14
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Granted: 1964-09-01
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Roger M Dille
- 👤 Ronald W Chapman
- 👤 William L Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:19
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58; C02; C02F; C02F1/00; C02F1/26; C10; C10K; C10K1/00; C10K1/04; C10K1/06; C01; C01P; C01P2006/00; C01P2006/10; C01P2006/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD FOR RECOVERING FROM AN AQUEOUS DISPERSION CARBON PRODUCED IN THE PARTIAL OXIDATION OF A HYDROCARBON TO SYNTHESIS GAS WHICH COMPRISES CONTACTING A DISPERSION OF SAID CARBON IN WATER UNDER ELEVATED PRESSURE ABOVE 100 P.S.I.G. WITH A HEAVY HYDROCARBON LIQUID HAVING AN API GRAVITY LESS THAN 12* IN AN AMOUNT WITHIN THE RANGE OF 0.5 TO 1.0 TIMES THE OIL ABSORPTION VALUE OF THE CARBON CONTAINED IN SAID DISPERSION, ADMIXING SAID OIL WITH SAID DISPERSION AT SAID ELEVATED PRESSURE TO FORM A CARBON-OIL COMPOSITE COMPRISING OIL BSORBED BY SAID CARBON, REDUCING THE PRESSURE OF SAID MIXTURE BY AT LEAST 15 P.S.I., SEPARATING CLARIFIED WATER SUBSTANTIALLY FREE FROM CARBON FROM THE RESULTING MIXTURE BY GRAVITY SEPARATION, AND SKIMMING CARBON FROM THE SURFACE OF SAID CLARIFIED WATER.
Claim 2
Independent Claim
126 words
THE METHOD FOR RECOVERING FROM AN AQUEOUS DISPERSION CARBON PRODUCED IN THE PARTIAL OXIDATION OF A HYDROCARBON TO SYNTHESIS GAS WHICH COMPRISES CONTACTING A DISPERSION OF SAID CARBON IN WATER UNDER ELEVATED PRESSURE ABOVE 100 P.S.I.G. WITH A HEAVY HYDROCARBON LIQUID HAVING AN API GRAVITY LESS THAN 12* IN AN AMOUNT WITHIN THE RANGE OF 0.5 TO 1.0 TIMES THE OIL ABSORPTION VALUE OF THE CARBON CONTAINED IN SAID DISPERSION, ADMIXING SAID OIL WITH SAID DISPERSION AT SAID ELEVATED PRESSURE TO FORM A CARBON-OIL COMPOSITE COMPRISING OIL BSORBED BY SAID CARBON, REDUCING THE PRESSURE OF SAID MIXTURE BY AT LEAST 15 P.S.I., SEPARATING CLARIFIED WATER SUBSTANTIALLY FREE FROM CARBON FROM THE RESULTING MIXTURE BY GRAVITY SEPARATION, AND SKIMMING CARBON FROM THE SURFACE OF SAID CLARIFIED WATER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |