US2690431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of carbonating ammoniacal solutions
Assignee: Manganese Chemicals Corp
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Filing: 1952-01-11
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Granted: 1954-09-28
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Expires: 1972-01-11
Abstract
No abstract record available.
Inventors
- 👤 Bernard R Babbitt
- 👤 Charles B Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:36
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
PROCESS WHICH COMPRISES ESTABLISHING A FIRST AQUEOUS SOLUTION OF AMMONIA AND CARBON DIOXIDE IN WHICH THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IS APPROXIMATELY 1.7 TO 1 AND THE CONCENTRATION OF AMMONIA IS AT LEAST 6 MOLS/LITER, PASSING THE FIRST SOLUTION IN ABSORBING CONTACT WITH A GAS MIXTURE CONTAINING A SUBSTANTIAL BUT MINOR AMOUNT OF CARBON DIOXIDE, WHEREBY TO INCREASE THE CARBON DIOXIDE CONTENT OF SAID FIRST SOLUTION AND SIMULTANEOUSLY INTRODUCING INTO THE FIRST SOLUTION A SECOND AQUEOUS SOLUTION OF AMMONIA AND CARBON DIOXIDE, IN WHICH SECOND SOLUTION THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IS MATERIALLY GREATER THAN 1,7 TO 1 AND THE CONCENTRATION OF AMMONIA IS AT LEAST 10 MOLS/ LITER, UNDER SUCH CONDITIONS AS TO MAINTAIN THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IN THE RESULTING MIXTURE AT ABOUT 1.7 TO 1.
Claim 2
Dependent Claim
138 words
PROCESS WHICH COMPRISES ESTABLISHING A FIRST AQUEOUS SOLUTION OF AMMONIA AND CARBON DIOXIDE IN WHICH THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IS APPROXIMATELY 1.7 TO 1 AND THE CONCENTRATION OF AMMONIA IS AT LEAST 6 MOLS/LITER, PASSING THE FIRST SOLUTION IN ABSORBING CONTACT WITH A GAS MIXTURE CONTAINING A SUBSTANTIAL BUT MINOR AMOUNT OF CARBON DIOXIDE, WHEREBY TO INCREASE THE CARBON DIOXIDE CONTENT OF SAID FIRST SOLUTION AND SIMULTANEOUSLY INTRODUCING INTO THE FIRST SOLUTION A SECOND AQUEOUS SOLUTION OF AMMONIA AND CARBON DIOXIDE, IN WHICH SECOND SOLUTION THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IS MATERIALLY GREATER THAN 1,7 TO 1 AND THE CONCENTRATION OF AMMONIA IS AT LEAST 10 MOLS/ LITER, UNDER SUCH CONDITIONS AS TO MAINTAIN THE MOL RATIO OF AMMONIA TO CARBON DIOXIDE IN THE RESULTING MIXTURE AT ABOUT 1.7 TO 1.
References Cited (Backward Citations)
US1014868A
Cited
US2621107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |