US3062622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen peroxide by anthraquinone process
Assignee: FMC Corp
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Filing: 1960-06-27
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Granted: 1962-11-06
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Expires: 1980-06-27
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Darbce
- 👤 Donald F Kreuz
- 👤 Theodore M Jenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN THE METHOD FOR PRODUCTION OF HYDROGEN PEROXIDE BY THE CYCLIC REDUCTION AND OXIDATION OF A LIQUID WORKING SOLUTION CONTAINING AN ALKYLATE ANTHRAQUINONE, WHEREIN REDUCTION IS CARRIED OUT IN THE PRESENCE OF A HYDROGENATION CATALYST MADE UP OF A PARTICULATE INERT CARRIER HAVING THEREON A THIN ADHERENT DEPOSIT OF A NOBLE METAL CATALYST AND WHEREIN SAID HYDROGENATION CATALYST IS SUBJECT TO SEPERATION OF SAID NOBLE METAL CATALYST FROM SAID INERT CARRIER, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS A HYDRGENATION CATALYST A PARTICULATE DOLOMITE CARRIER HAVING THEREON A THIN ADHERENT DEPOSIST OF A NOBLE METAL CATALYST, SAID DOLOMITE BEING AN IMPROVED AND ADHERING CARRIER FOR SAID NOBLE METAL CATALYST.
Claim 2
Dependent Claim
108 words
IN THE METHOD FOR PRODUCTION OF HYDROGEN PEROXIDE BY THE CYCLIC REDUCTION AND OXIDATION OF A LIQUID WORKING SOLUTION CONTAINING AN ALKYLATE ANTHRAQUINONE, WHEREIN REDUCTION IS CARRIED OUT IN THE PRESENCE OF A HYDROGENATION CATALYST MADE UP OF A PARTICULATE INERT CARRIER HAVING THEREON A THIN ADHERENT DEPOSIT OF A NOBLE METAL CATALYST AND WHEREIN SAID HYDROGENATION CATALYST IS SUBJECT TO SEPERATION OF SAID NOBLE METAL CATALYST FROM SAID INERT CARRIER, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS A HYDRGENATION CATALYST A PARTICULATE DOLOMITE CARRIER HAVING THEREON A THIN ADHERENT DEPOSIST OF A NOBLE METAL CATALYST, SAID DOLOMITE BEING AN IMPROVED AND ADHERING CARRIER FOR SAID NOBLE METAL 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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |