US2768945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating acidic gases from fluid mixtures
Assignee: ExxonMobil Oil Corp
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Filing: 1953-03-09
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Granted: 1956-10-30
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/02; C01C3/04; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/14; C10K1/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF SEPARATING ACIDIC SUBSTANCES FROM A PREDOMINANTLY WATER-INSOLUBLE FLUID MIXTURE WHICH COMPRISES: BRINGING SAID FLUID MIXTURE INTO CONTACT WITH AN AQUEOUS AMINE SOLUTION WHEREBY SAID SOLUTION DISSOLVES SAID ACIDIC SUBSTANCES; RAISING THE TEMPERATURE OF THE ACID-BEARING AMINE SOLUTION TO ITS BOILING POINT TO DRIVE OFF WEAKLY ACIDIC, NORMALLY GASEOUS COMPONENTS; SUBJECTING AT LEAST PART OF THE AMINE SOLUTION FROM SAID HEATING STEP TO ELECTROLYSIS TO FURTHER INCREASE THE PROPORTION OF FREE AMINE IN SAID SOLUTION; AND EMPLOYING THE THUS REACTIVATED SOLUTION IN THE TREATMENT OF FURTHER QUANTITIES OF SAID FLUID MIXTURE.
Claim 2
Independent Claim
93 words
THE METHOD OF SEPARATING ACIDIC SUBSTANCES FROM A PREDOMINANTLY WATER-INSOLUBLE FLUID MIXTURE WHICH COMPRISES: BRINGING SAID FLUID MIXTURE INTO CONTACT WITH AN AQUEOUS AMINE SOLUTION WHEREBY SAID SOLUTION DISSOLVES SAID ACIDIC SUBSTANCES; RAISING THE TEMPERATURE OF THE ACID-BEARING AMINE SOLUTION TO ITS BOILING POINT TO DRIVE OFF WEAKLY ACIDIC, NORMALLY GASEOUS COMPONENTS; SUBJECTING AT LEAST PART OF THE AMINE SOLUTION FROM SAID HEATING STEP TO ELECTROLYSIS TO FURTHER INCREASE THE PROPORTION OF FREE AMINE IN SAID SOLUTION; AND EMPLOYING THE THUS REACTIVATED SOLUTION IN THE TREATMENT OF FURTHER QUANTITIES OF SAID FLUID MIXTURE.
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |