US3100680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inhibiting foaming of diethanolamine solutions in treating gases
Assignee: Gulf Oil Corp
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Filing: 1960-12-27
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Granted: 1963-08-13
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 John R Shaw
- 👤 Henry L Vornkahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:09
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A PROCESS FOR SEPARATING ACIDIC GASES FROM A MIXTURE OF ACIDIC GASES AND HYDROCARBONS BY CONTACTING SAID MIXTURE WITH AAN AQUEOUS DIETHANOLAMINE SOLUTION UNDER CONTACTING CONDITIONS NORMALLY TENDING TO INDUCE FOAMING THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID MIXTURE OF ACIDIC GASES AND HYDROCARBONS WITH AN AQUEOUS DIETHANOLAMINE SOLUTION CONTAINING A SMALL AMOUNT, SUFFICIENT TO INHIBIT THE NORMAL FOAMING TENDENCY, OF AN ANTIFOAM COMPOSITION COMPRISING ABOUT 20 TO ABOUT 90 PERCENT BY WEIGHT OF A LIGHT MINERAL OIL HAVING A VISCOSSITY OF ABOUT 30 TO ABOUT 50 SSU AT 100*F. AND ABOUT 80 TO ABOUT 10 PERCENT BY WEIGHT OF COTTONSEED OIL.
Claim 2
Dependent Claim
102 words
IN A PROCESS FOR SEPARATING ACIDIC GASES FROM A MIXTURE OF ACIDIC GASES AND HYDROCARBONS BY CONTACTING SAID MIXTURE WITH AAN AQUEOUS DIETHANOLAMINE SOLUTION UNDER CONTACTING CONDITIONS NORMALLY TENDING TO INDUCE FOAMING THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID MIXTURE OF ACIDIC GASES AND HYDROCARBONS WITH AN AQUEOUS DIETHANOLAMINE SOLUTION CONTAINING A SMALL AMOUNT, SUFFICIENT TO INHIBIT THE NORMAL FOAMING TENDENCY, OF AN ANTIFOAM COMPOSITION COMPRISING ABOUT 20 TO ABOUT 90 PERCENT BY WEIGHT OF A LIGHT MINERAL OIL HAVING A VISCOSSITY OF ABOUT 30 TO ABOUT 50 SSU AT 100*F. AND ABOUT 80 TO ABOUT 10 PERCENT BY WEIGHT OF COTTONSEED OIL.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |