US3000693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing and disposing of ammonia from coke oven gas
Assignee: Beazer East Inc
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Filing: 1958-08-18
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Granted: 1961-09-19
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Elwood V Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:13
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/085; C01; C01B; C01B21/00; C01B21/20; C01B21/24; C01B21/26; C01C; C01C1/00; C01C1/02; C01C1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR TREATING GAS EVOLVED FROM THE COKING OF COAL WHICH COMPRISES CONTACTING THE GAS WITH A WASH OIL FOR REMOVING SUBSTANTIALLY ALL OF THE NAPHTHALENE FROM THE GAS, THEREAFTER CONTACTING THE NAPHTHALENE-FREE GAS WITH WATER TO ABSORB SUBSTANTIALLY ALL OF THE AMMONIA AND A PORTION OF THE WATER SOLUBLE IMPURITIES THEREFROM, STRIPPING THE AMMONIA AND SAID WATER SOLUBLE IMPURITIES AS VAPORS HAVING A WATER VAPOR TO AMMONIA RATIO RANGING BETWEEN ABOUT 3.7:1 TO 1:1 FROM SAID WATER, AND BURNING SAID AMMONIA UNDER TEMPERATURE AND HEAT-EVOLVING CONDITIONS SUBSTANTIALLY PRECLUDING THE FORMATION OF OXIDES OF NITROGEN.
Claim 2
Dependent Claim
96 words
A PROCESS FOR TREATING GAS EVOLVED FROM THE COKING OF COAL WHICH COMPRISES CONTACTING THE GAS WITH A WASH OIL FOR REMOVING SUBSTANTIALLY ALL OF THE NAPHTHALENE FROM THE GAS, THEREAFTER CONTACTING THE NAPHTHALENE-FREE GAS WITH WATER TO ABSORB SUBSTANTIALLY ALL OF THE AMMONIA AND A PORTION OF THE WATER SOLUBLE IMPURITIES THEREFROM, STRIPPING THE AMMONIA AND SAID WATER SOLUBLE IMPURITIES AS VAPORS HAVING A WATER VAPOR TO AMMONIA RATIO RANGING BETWEEN ABOUT 3.7:1 TO 1:1 FROM SAID WATER, AND BURNING SAID AMMONIA UNDER TEMPERATURE AND HEAT-EVOLVING CONDITIONS SUBSTANTIALLY PRECLUDING THE FORMATION OF OXIDES OF NITROGEN.
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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |