US2927002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of hydrogen peroxide
Assignee: LA PORTE CHEMICALS Ltd
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Filing: 1955-10-11
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Granted: 1960-03-01
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Expires: 1975-10-11
Abstract
No abstract record available.
Inventors
- 👤 Feuvre Charles William Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A CYCLIC PROCESS FOR THE MANAFACTURE OF HYDROGEN PERIOXIDE BY THE AUTOXIDATION OF AN ANTHRAQUINONE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED ANTHRAQUINHYDRONES AND SUBSTITUTED ANTHRAQUINOIS IN A SOLVENT TO FORM HYDROGEN PERIOXIDE AND A SUBSTITUTED ANTHRAQUINONE WITH THE SUBSEQUENT REMOVAL OF THE HYDROGEN PERIOXIDE BY EXTRACTION WITH AN AQUEOUS LIQUID FOLLOWED BY REDUCTION OF THE SUBSTITUTED ANTHRAQUINONE BACK TO SAID SUBSTITUTED ANTHRAQUINHYDRONE OR SUBSTITUTED ANTHRAQUINOL WHICH IS AGAIN AUTOXIDISED, THE STEP OF USING A SOLVENT CONTAINING AS A FIRST COMPONENT FOR DISSOLVING SAID ANTHRAQUINHYDRONES AND ANTHRAQUINOLS AN ALIPHATIC ESTER SELECTED FROM THE GROUP CONSISTING OF ACETATES AND PROPIONATES OF CYCLOHEXANOL AND OF METHYL CYCLOHEXANOL AND A SECOND COMPONENT FOR DISSOLVING SAID ANTHRAQUINONES.
Claim 2
Dependent Claim
115 words
IN A CYCLIC PROCESS FOR THE MANAFACTURE OF HYDROGEN PERIOXIDE BY THE AUTOXIDATION OF AN ANTHRAQUINONE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED ANTHRAQUINHYDRONES AND SUBSTITUTED ANTHRAQUINOIS IN A SOLVENT TO FORM HYDROGEN PERIOXIDE AND A SUBSTITUTED ANTHRAQUINONE WITH THE SUBSEQUENT REMOVAL OF THE HYDROGEN PERIOXIDE BY EXTRACTION WITH AN AQUEOUS LIQUID FOLLOWED BY REDUCTION OF THE SUBSTITUTED ANTHRAQUINONE BACK TO SAID SUBSTITUTED ANTHRAQUINHYDRONE OR SUBSTITUTED ANTHRAQUINOL WHICH IS AGAIN AUTOXIDISED, THE STEP OF USING A SOLVENT CONTAINING AS A FIRST COMPONENT FOR DISSOLVING SAID ANTHRAQUINHYDRONES AND ANTHRAQUINOLS AN ALIPHATIC ESTER SELECTED FROM THE GROUP CONSISTING OF ACETATES AND PROPIONATES OF CYCLOHEXANOL AND OF METHYL CYCLOHEXANOL AND A SECOND COMPONENT FOR DISSOLVING SAID ANTHRAQUINONES.
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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |