US2511307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the utilization of impure coke-oven gas and waste pickle liquor in the manufacture of ammonium sulfate
Assignee: Honeywell International Inc
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Filing: 1946-05-28
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Granted: 1950-06-13
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Expires: 1966-05-28
Abstract
No abstract record available.
Inventors
- 👤 Tiddy William
- 👤 Franklin D Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:45
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/12; Y; Y10; Y10S; Y10S423/00; Y10S423/01; Y10S423/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR REMOVING AMMONIA FROM COKE OVEN GAS AND RECOVERING IRON VALUES FROM PICKLE LIQUOR COMPRISING PASSING COKE OVEN GAS SUCCESSIVELY THROUGH A FIRST AND A SECOND CHAMBER, PASSING A FEED LIQUOR COMPRISING A PICKLE LIQUOR AND A RECYCLED LIQUOR CONTAINING AMMONIUM SULFATE SUCCESSIVELY THROUGH SAID SECOND CHAMBER AND SAID FIRST CHAMBER, CONTACTING COUNTERCURRENTLY IN SAID FIRST CHAMBER AND SAID SECOND CHAMBER THE COKE OVEN GAS WITH THE FEED LIQUOR PASSING THERETHROUGH, THE RATE OF FLOW OF THE COKE OVEN GAS, THROUGH SAID FIRST CHAMBER AND SAID SECOND CHAMBER BEING REGULATED SO THAT THE AMMONIA IN THE COKE GAS IS SUBSTANTIALLY COMPLETELY REMOVED AFTER PASSAGE THROUGH SAID SECOND CHAMBER AND THE AMOUNT OF FERROUS SULFATE IN THE FEED AFTER PASSAGE THROUGH SAID FIRST CHAMBER CONTAINS NOT LESS THAN 2.0 GRAMS
Claim 2
Dependent Claim
131 words
A PROCESS FOR REMOVING AMMONIA FROM COKE OVEN GAS AND RECOVERING IRON VALUES FROM PICKLE LIQUOR COMPRISING PASSING COKE OVEN GAS SUCCESSIVELY THROUGH A FIRST AND A SECOND CHAMBER, PASSING A FEED LIQUOR COMPRISING A PICKLE LIQUOR AND A RECYCLED LIQUOR CONTAINING AMMONIUM SULFATE SUCCESSIVELY THROUGH SAID SECOND CHAMBER AND SAID FIRST CHAMBER, CONTACTING COUNTERCURRENTLY IN SAID FIRST CHAMBER AND SAID SECOND CHAMBER THE COKE OVEN GAS WITH THE FEED LIQUOR PASSING THERETHROUGH, THE RATE OF FLOW OF THE COKE OVEN GAS, THROUGH SAID FIRST CHAMBER AND SAID SECOND CHAMBER BEING REGULATED SO THAT THE AMMONIA IN THE COKE GAS IS SUBSTANTIALLY COMPLETELY REMOVED AFTER PASSAGE THROUGH SAID SECOND CHAMBER AND THE AMOUNT OF FERROUS SULFATE IN THE FEED AFTER PASSAGE THROUGH SAID FIRST CHAMBER CONTAINS NOT LESS THAN 2.0 GRAMS
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) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |