Patent US2835562A successfully refreshed from Google Patents.
US2835562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black recovery
Assignee: Phillips Petroleum Co
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Filing: 1956-04-30
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Granted: 1958-05-20
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Lyndon D Boyer
- 👤 James Q Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A PROCESS FOR RECOVERING AND PELLETING CARBON BLACK PRESENT IN THE EFFLUENT SMOKE FROM A CARBON BLACK REACTOR WHICH COMPRISES WATER-QUENCHING SAID EFFLUENT IN A QUENCHING ZONE, WHEREBY AN AQUEOUS SLURRY CARRYING GRIT AND A PORTION OF CARBON BLACK IN SAID SMOKE FLOWS FROM A LOWER SECTION OF SAID QUENCH ZONE AND A GASEOUS STREAM CARRYING MOST OF THE CARBON BLACK FLOWS FROM THE UPPER SECTION THEREOF; RECOVERING CARBON BLACK FROM SAID GASES OUS STREAM AND PASSING SAME TO A PELLETING ZONE; SEPARATING GRIT FROM SAID SLURRY; AND THEN PASSING SAID SLURRY TO SAID PELLETING ZONE TO PELLET THE BLACK THEREIN WITH THE BLACK RECOVERING FROM SAID GASEOUS STREAM.
Claim 2
Dependent Claim
109 words
A PROCESS FOR RECOVERING AND PELLETING CARBON BLACK PRESENT IN THE EFFLUENT SMOKE FROM A CARBON BLACK REACTOR WHICH COMPRISES WATER-QUENCHING SAID EFFLUENT IN A QUENCHING ZONE, WHEREBY AN AQUEOUS SLURRY CARRYING GRIT AND A PORTION OF CARBON BLACK IN SAID SMOKE FLOWS FROM A LOWER SECTION OF SAID QUENCH ZONE AND A GASEOUS STREAM CARRYING MOST OF THE CARBON BLACK FLOWS FROM THE UPPER SECTION THEREOF; RECOVERING CARBON BLACK FROM SAID GASES OUS STREAM AND PASSING SAME TO A PELLETING ZONE; SEPARATING GRIT FROM SAID SLURRY; AND THEN PASSING SAID SLURRY TO SAID PELLETING ZONE TO PELLET THE BLACK THEREIN WITH THE BLACK RECOVERING FROM SAID GASEOUS STREAM.
Claim 3
Dependent Claim
124 words
APPARATUS COMPRISING IN COMBINATION A CARBON BLACK REACTOR HAVING A SMOKE EFFLUENT LINE AND MEANS FOR SPRAYING WATER INTO THE EFFLUENT END SECTION OF SAID REACTOR; A SECONDARY QUENCH TOWER IN SAID EFFLUENT LINE HAVING SMOKE OUTLET MEANS IN AN UPPER SECTION AND SLURRY OUTLET MEANS IN A LOWER SECTION; MEANS FOR SPRAYING WATER INTO SAID TOWER; AT LEAST ONE DRY CYCLONE SEPARATOR CONNECTED TO THE SMOKE OUTLET OF SAID TOWER HAVING SMOKE OUTLET MEANS IN AN UPPER SECTION AND SOLIDS OUTLET MEANS IN A LOWER SECTION; A PELLETING MILL HAVING SPRAY MEANS THEREIN; A LINE CONNECTING SAID SOLIDS OUTLET MEANS WITH SAID PELLETING MILL; A LINE LEADING FROM SAID SLURRY OUTLET MEANS TO SAID SPRAY MEANS; AND GRIT SEPARTION MEANS IN LAST LINE.
Claim 4
Dependent Claim
124 words
APPARATUS COMPRISING IN COMBINATION A CARBON BLACK REACTOR HAVING A SMOKE EFFLUENT LINE AND MEANS FOR SPRAYING WATER INTO THE EFFLUENT END SECTION OF SAID REACTOR; A SECONDARY QUENCH TOWER IN SAID EFFLUENT LINE HAVING SMOKE OUTLET MEANS IN AN UPPER SECTION AND SLURRY OUTLET MEANS IN A LOWER SECTION; MEANS FOR SPRAYING WATER INTO SAID TOWER; AT LEAST ONE DRY CYCLONE SEPARATOR CONNECTED TO THE SMOKE OUTLET OF SAID TOWER HAVING SMOKE OUTLET MEANS IN AN UPPER SECTION AND SOLIDS OUTLET MEANS IN A LOWER SECTION; A PELLETING MILL HAVING SPRAY MEANS THEREIN; A LINE CONNECTING SAID SOLIDS OUTLET MEANS WITH SAID PELLETING MILL; A LINE LEADING FROM SAID SLURRY OUTLET MEANS TO SAID SPRAY MEANS; AND GRIT SEPARTION MEANS IN LAST LINE.
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |