US2950229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for maintaining high level of activity for supported manganese oxide acceptors for hydrogen sulfide
Assignee: Consolidation Coal Co
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Filing: 1957-10-28
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Granted: 1960-08-23
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Expires: 1977-10-28
Abstract
No abstract record available.
Inventors
- 👤 James D Batchelor
- 👤 George P Curan
- 👤 Gorin Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:45
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PROCESS EMPLOYING SOLID ACCEPTORS FOR HYDROGEN SULFIDE COMPRISING MANGANESE OXIDE IMPRIGNATED ON AN INERT SUPPORT FOR ABSORBING HYDROGEN SULFIDE AT TEMPERATURES ABOVE ABOUT 1100*F. TO FORM MANGANESE SULFIDE, FOLLOWED BY OXIDIZING THE MANGANESE SULFIDE TO MANGANESE OXIDE BY REACTION WITH OXYGEN AT ELEVATED TEMPERATURES ABOVE ABOUT 1300*F., WHEREIN THE ACCEPTORS SUFFER A DECREASE IN H2S-ABSORBING ACTIVITY FOLLOWING SAID OXIDIZING, THE IMPROVEMENT WHICH MINIMIZES LOSS OF THE ACCEPTORS'' ACTIVITY UNDER H2S-ABSORBING CONDITIONS, COMPRISING INTIMATELY CONTACTING A MINOR PORTION OF THE MANGANESE SULFIDE-CONTAINING SULFIDED ACCEPTORS WITH EXCESS OXYGEN AT A TEMPERATURE OF 100 TO 1600*F., CONVERTING THEREBY SUBSTANTIALLY ALL OF THE CONTACTED MANGANESE SULFIDE TO HIGHER OXIDES OF MANGANESE AND THEREAFTER RECOVERING THE THUS-TREATED ACCEPTORS CONTAINING HIGHER OXIDES OF MANGANESE REDUCIBLE TO MANGANESE OXIDE HAVING AN INCREASED H2-S-ABSORBING ACTIVITY.
Claim 2
Dependent Claim
129 words
IN A PROCESS EMPLOYING SOLID ACCEPTORS FOR HYDROGEN SULFIDE COMPRISING MANGANESE OXIDE IMPRIGNATED ON AN INERT SUPPORT FOR ABSORBING HYDROGEN SULFIDE AT TEMPERATURES ABOVE ABOUT 1100*F. TO FORM MANGANESE SULFIDE, FOLLOWED BY OXIDIZING THE MANGANESE SULFIDE TO MANGANESE OXIDE BY REACTION WITH OXYGEN AT ELEVATED TEMPERATURES ABOVE ABOUT 1300*F., WHEREIN THE ACCEPTORS SUFFER A DECREASE IN H2S-ABSORBING ACTIVITY FOLLOWING SAID OXIDIZING, THE IMPROVEMENT WHICH MINIMIZES LOSS OF THE ACCEPTORS'' ACTIVITY UNDER H2S-ABSORBING CONDITIONS, COMPRISING INTIMATELY CONTACTING A MINOR PORTION OF THE MANGANESE SULFIDE-CONTAINING SULFIDED ACCEPTORS WITH EXCESS OXYGEN AT A TEMPERATURE OF 100 TO 1600*F., CONVERTING THEREBY SUBSTANTIALLY ALL OF THE CONTACTED MANGANESE SULFIDE TO HIGHER OXIDES OF MANGANESE AND THEREAFTER RECOVERING THE THUS-TREATED ACCEPTORS CONTAINING HIGHER OXIDES OF MANGANESE REDUCIBLE TO MANGANESE OXIDE HAVING AN INCREASED H2-S-ABSORBING ACTIVITY.
References Cited (Backward Citations)
US2824047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |