Patent US2930672A successfully refreshed from Google Patents.
US2930672A
Expired / Lapsed
US
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Method of regenerating ammoniacal copper solutions utilized to remove carbon monoxide from gases
Assignee: Phillips Petroleum Co
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Filing: 1957-04-22
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Granted: 1960-03-29
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Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Carl S Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:51
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/124; C10K1/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A PROCESS FOR REGENERATING AQUEOUS AMMONIACAL COPPER TREATING SOLUTION USED TO ABSORB CARBON MONOXIDE COMPRISING A REFLUX STEP IN A REFLUX ZONE IN WHICH CONTAMINATED SOLUTION IS USED TO REABSORB AMMONIA FROM GASES LIBERATED IN REGENERATION, A HEATING STEP IN A HEATING ZONE IN WHICH SOLUTION FROM SAID REFLUX ZONE IS HEATED TO REGENERATION TEMPERATURE, AND A SEPARATE DIGESTION STEP IN A DIGESTION ZONE IN WHICH HEATED SOLUTION FROM SAID HEATING ZONE IS PERMITTED TO COMPLETE THE REACTIONS OF REGENERATION, THE IMPROVED METHOD OF INCREASING THE CUPROUS ION CONCENTRATION IN THE REGENERATED SOLUTION WITH RESPECT TO THE WHOLE REGENERATED SOLUTION WHICH COMPRISES BY-PASSING SAID REFLUX WITH A PORTION OF SAID CONTAMINATED SOLUTION AND REUNITINC SAID PORTION WITH THE MAIN STREAM OF SOLUTION UNDERGOING REGENERATION.
Claim 2
Dependent Claim
125 words
IN A PROCESS FOR REGENERATING AQUEOUS AMMONIACAL COPPER TREATING SOLUTION USED TO ABSORB CARBON MONOXIDE COMPRISING A REFLUX STEP IN A REFLUX ZONE IN WHICH CONTAMINATED SOLUTION IS USED TO REABSORB AMMONIA FROM GASES LIBERATED IN REGENERATION, A HEATING STEP IN A HEATING ZONE IN WHICH SOLUTION FROM SAID REFLUX ZONE IS HEATED TO REGENERATION TEMPERATURE, AND A SEPARATE DIGESTION STEP IN A DIGESTION ZONE IN WHICH HEATED SOLUTION FROM SAID HEATING ZONE IS PERMITTED TO COMPLETE THE REACTIONS OF REGENERATION, THE IMPROVED METHOD OF INCREASING THE CUPROUS ION CONCENTRATION IN THE REGENERATED SOLUTION WITH RESPECT TO THE WHOLE REGENERATED SOLUTION WHICH COMPRISES BY-PASSING SAID REFLUX WITH A PORTION OF SAID CONTAMINATED SOLUTION AND REUNITINC SAID PORTION WITH THE MAIN STREAM OF SOLUTION UNDERGOING REGENERATION.
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |