US2966398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen peroxide by slurrying the anthraquinone working soulution
Assignee: FMC Corp
•
Filing: 1958-03-12
•
Granted: 1960-12-27
•
Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Jenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:00
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE CYCLIC PROCESS OF MANUFACTURING HYDROGEN PEROXIDE WHICH COMPRISES HYDROGENATING A WORKING SOLUTION COMPRISING AN ALKYLATED ANTHRAQUINONE AS A WORKING MATERIAL DISSOLVED IN A SOLVENT COMPRISING A QUINONE SOLVENT THEREIN UNTIL THE HYDROQUINONE FORM A SUCH WORKING MATERIAL IS PRODUCED, COOLING SUCH HYDROGENATED WORKING SOLUTION AT LEAST ABOUT 10*C. UNTIL CRYSTALS OF THE HYDROQUINONE FORM OF THE WORKING MATERIAL PRECIPITATE THEREFROM, SEPARATING A PORTION OF THE WORKING SOLUTION FROM THE MIXTURE OF THE WORKING SOLUTION AND CRYSTALS SO PRODUCED UNTIL OF SLURRY OF SUCH CRYSTALS ITS FORMED AND SENDING SUCH CRYSTAL SLURRY TO AN OXIDIZER AND OXIDIZING SUCH SLURRY OF THE HYDROQUINON FORM OF THE WORKING MATERIAL UNTIL HYDROGEN PEROXIDE IS PRODUCED AND THEN SEPARATING HYDROGEN PEROXIDE THEREFROM AND RETURNING THE RESIDUE OF SUCH WORKING SOLUTION AND THE PORTION OF THE WORKING SOLUTION SEPARATED FROM SAID MIXTURE OF WORKING SOLUTION AND CRYSTALS TO THE HYDROGENATOR TO BE AGAIN HYDROGENATED.
Claim 2
Dependent Claim
149 words
THE CYCLIC PROCESS OF MANUFACTURING HYDROGEN PEROXIDE WHICH COMPRISES HYDROGENATING A WORKING SOLUTION COMPRISING AN ALKYLATED ANTHRAQUINONE AS A WORKING MATERIAL DISSOLVED IN A SOLVENT COMPRISING A QUINONE SOLVENT THEREIN UNTIL THE HYDROQUINONE FORM A SUCH WORKING MATERIAL IS PRODUCED, COOLING SUCH HYDROGENATED WORKING SOLUTION AT LEAST ABOUT 10*C. UNTIL CRYSTALS OF THE HYDROQUINONE FORM OF THE WORKING MATERIAL PRECIPITATE THEREFROM, SEPARATING A PORTION OF THE WORKING SOLUTION FROM THE MIXTURE OF THE WORKING SOLUTION AND CRYSTALS SO PRODUCED UNTIL OF SLURRY OF SUCH CRYSTALS ITS FORMED AND SENDING SUCH CRYSTAL SLURRY TO AN OXIDIZER AND OXIDIZING SUCH SLURRY OF THE HYDROQUINON FORM OF THE WORKING MATERIAL UNTIL HYDROGEN PEROXIDE IS PRODUCED AND THEN SEPARATING HYDROGEN PEROXIDE THEREFROM AND RETURNING THE RESIDUE OF SUCH WORKING SOLUTION AND THE PORTION OF THE WORKING SOLUTION SEPARATED FROM SAID MIXTURE OF WORKING SOLUTION AND CRYSTALS TO THE HYDROGENATOR TO BE AGAIN HYDROGENATED.
References Cited (Backward Citations)
US2158525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |