Patent US2886416A successfully refreshed from Google Patents.
US2886416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hydrogen peroxide
Assignee: Columbia Southern Chemical Corp
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Filing: 1954-04-28
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Granted: 1959-05-12
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Expires: 1974-04-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Cox
- 👤 Thurman E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:02
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN THE METHOD OF PREPARING HYDROGEN PEROXIDE BY SUCCESSIVELY HYDROGENATING A QUINONE IN THE PRESENCE OF A CATALYST SUSPENDED IN THE QUINONE, OXIDIZING THE HYDROGENEATED PRODUCT TO REGENERATE THE QUINONE AND TO GENERATE HYDROGEN PEROXIDE, AND EXTRACTING THE RESULTING HYDROGEN PEROXIDE WITH WATER AND RECYCLING THE REGENERATED QUINONE FOR FURTHER HYDROGENATION, THE IMPROVEMENT WHICH COMPRISES AVOIDING AGGLOMERATION OF SAID CATALYST BY HEATING THE REGENERATED QUINONE TO A TEMPERATURE OF AT LEAST 5*F. ABOVE THE TEMPERATURE OF THE QUINONE DURING EXTRACTION, AND HYDROGENATING THE HEATED, REGENERATED WUINONE IN THE PRESNCE OF SAID CATALYST.
Claim 2
Dependent Claim
92 words
IN THE METHOD OF PREPARING HYDROGEN PEROXIDE BY SUCCESSIVELY HYDROGENATING A QUINONE IN THE PRESENCE OF A CATALYST SUSPENDED IN THE QUINONE, OXIDIZING THE HYDROGENEATED PRODUCT TO REGENERATE THE QUINONE AND TO GENERATE HYDROGEN PEROXIDE, AND EXTRACTING THE RESULTING HYDROGEN PEROXIDE WITH WATER AND RECYCLING THE REGENERATED QUINONE FOR FURTHER HYDROGENATION, THE IMPROVEMENT WHICH COMPRISES AVOIDING AGGLOMERATION OF SAID CATALYST BY HEATING THE REGENERATED QUINONE TO A TEMPERATURE OF AT LEAST 5*F. ABOVE THE TEMPERATURE OF THE QUINONE DURING EXTRACTION, AND HYDROGENATING THE HEATED, REGENERATED WUINONE IN THE PRESNCE OF SAID CATALYST.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |