US2716053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black production
Assignee: Phillips Petroleum Co
•
Filing: 1950-07-14
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Granted: 1955-08-23
•
Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
- 👤 Bertrand J Mayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:31
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PROCESS FOR PRODUCING CARBON BLACK FROM CARBON MONOXIDE WHEREIN SAID CARBON MONOXIDE IS PRODUCED IN A FIRST ZONE BY THE CONTROLLED OXIDATION OF CARBONACEOUS SUBSTANCES AT A TEMPERATURE ABOVE 2300* F. AND UNDER A SUPERATMOSPHERIC PRESSURE AND WHEREIN THE EFFLUENT FROM SAID FIRST ZONE CONTAINING SAID CARBON MONOXIDE IS REACTED IN A SECOND ZONE AT A TEMPERATURE WITHIN THE RANGE OF 1300 TO 1900* F. TO PRODUCE CARBON BLACK, THE IMPROVEMENT WHICH COMPRISES COOLING THE EFFLUENT FROM SAID SECOND ZONE, SEPARATING OUT AT LEAST THE MAJOR PORTION OF THE RESULTING CARBON BLACK FROM SAID LAST EFFLUENT, AND QUENCHING THE EFFLUENT FROM SAID FIRST ZONE, WITH A COOLED GAS PRODUCED FROM SAID EFFLUENT FROM SAID SECOND ZONE IN THE PRESENCE OF A CATALYTIC AMOUNT OF CARBON BLACK SUFFIC-
Claim 2
Dependent Claim
129 words
IN A PROCESS FOR PRODUCING CARBON BLACK FROM CARBON MONOXIDE WHEREIN SAID CARBON MONOXIDE IS PRODUCED IN A FIRST ZONE BY THE CONTROLLED OXIDATION OF CARBONACEOUS SUBSTANCES AT A TEMPERATURE ABOVE 2300* F. AND UNDER A SUPERATMOSPHERIC PRESSURE AND WHEREIN THE EFFLUENT FROM SAID FIRST ZONE CONTAINING SAID CARBON MONOXIDE IS REACTED IN A SECOND ZONE AT A TEMPERATURE WITHIN THE RANGE OF 1300 TO 1900* F. TO PRODUCE CARBON BLACK, THE IMPROVEMENT WHICH COMPRISES COOLING THE EFFLUENT FROM SAID SECOND ZONE, SEPARATING OUT AT LEAST THE MAJOR PORTION OF THE RESULTING CARBON BLACK FROM SAID LAST EFFLUENT, AND QUENCHING THE EFFLUENT FROM SAID FIRST ZONE, WITH A COOLED GAS PRODUCED FROM SAID EFFLUENT FROM SAID SECOND ZONE IN THE PRESENCE OF A CATALYTIC AMOUNT OF CARBON BLACK SUFFIC-
References Cited (Backward Citations)
US1352162A
Cited
US1812230A
Cited
US1844327A
Cited
US1964744A
Cited
US1925130A
Cited
US2346754A
Cited
US2491518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |