US3758392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinone continuous recycle process for electrolytic conversion of benzene to
Assignee: Carus LLC
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Filing: 1971-05-03
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Granted: 1973-09-11
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Expires: 1991-05-03
Abstract
Abstract QUINONE IS PRODUCED BY A CONTINUOUS RECYCLE PROCESS USING AN ELECTROLYSIS CELL FOR ANODIC OXIDATION OF BENZENE TO QUINONE. DURING THE CELL OXIDATION, A POLYMERIC MATERIAL IS FORMED IN THE ANOLYTE DISPERSION OF BENZENE AND AQUEOUS ELECTROLYTE. THE POLYMERIC MATERIAL IS CONTINUOUSLY REMOVED FROM THE ELECTROLYSIS CELL WITH THE ANOLYTE AND SEPARATED FROM THE LIQUID COMPONENTS THEREOF, WHICH ARE ALSO SEPARATED AND RECYCLED TO THE CELL, AFTER PART OR ALL OF THE QUINONE-LOADED BENZENE IS PASSED THROUGH A QUINONE REMOVAL OPERATION. THE CELLS ARE EMPLOYED WITH A DIAPHRAGM BETWEEN THE ANODE AND CATHODE COMPARTMENTS, WHICH IS PREFERABLY A CATIONIC PERMSELECTIVE DIAPHRAGM.
Inventors
- 👤 F Anderson
- 👤 J Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:36
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/23; C25B3/01; C25B3/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |