US2993750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating carbon dioxide from gaseous mixtures
Assignee: Vetrocoke SpA
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Filing: 1955-06-17
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Granted: 1961-07-25
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Expires: 1975-06-17
Abstract
No abstract record available.
Inventors
- 👤 Giammarco Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:27
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD OF SEPARATING CARBON DIOXIDE FROM A GASEOUS MIXTURE CONTAINING IT IN THE AMOUNT OF AT LEAST 2% WHICH COMPRISES THE STEPS OF ABSORBING THE CARBON DIOXIDE IN AN ALKALINE SOLUTION BY BRINGING SAID GASEOUS MIXTURE INTO CONTACT WITH SAID SOLUTION, SAID SOLUTION CONTAINING AN ABSORPTION PROMOTER SELECTED FROM THE GROUP CONSISTING OF PROTIDES AND AMINO ACIDS, SAID PROMOTER BEING PRESENT IN A QUANTITY SUCH THAT THE TOTAL ALKALINITY OF SAID SOLUTION IS AT LEAST 1.5 TIMES THAT REQUIRED STOICHIOMETRICALLY TO COMBINE WITH SAID PROMOTER WHEREBY THE SOLUTION IS NOT CORROSIVE TO METALS AND DECOMPOSITION IS SUPPRESSED, AND REGENERATING THE SOLUTION AFTER CONTACT WITH SAID AQUEOUS MIXTURE BY EXPELLING THEREFROM THE CARBON DIOXIDE.
Claim 2
Independent Claim
114 words
A METHOD OF SEPARATING CARBON DIOXIDE FROM A GASEOUS MIXTURE CONTAINING IT IN THE AMOUNT OF AT LEAST 2% WHICH COMPRISES THE STEPS OF ABSORBING THE CARBON DIOXIDE IN AN ALKALINE SOLUTION BY BRINGING SAID GASEOUS MIXTURE INTO CONTACT WITH SAID SOLUTION, SAID SOLUTION CONTAINING AN ABSORPTION PROMOTER SELECTED FROM THE GROUP CONSISTING OF PROTIDES AND AMINO ACIDS, SAID PROMOTER BEING PRESENT IN A QUANTITY SUCH THAT THE TOTAL ALKALINITY OF SAID SOLUTION IS AT LEAST 1.5 TIMES THAT REQUIRED STOICHIOMETRICALLY TO COMBINE WITH SAID PROMOTER WHEREBY THE SOLUTION IS NOT CORROSIVE TO METALS AND DECOMPOSITION IS SUPPRESSED, AND REGENERATING THE SOLUTION AFTER CONTACT WITH SAID AQUEOUS MIXTURE BY EXPELLING THEREFROM THE CARBON DIOXIDE.
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |