US4510026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for electrolysis of sea water
Assignee: PANCLOR SA PO BOX 55 CH-6911 COMANO SWITZERLAND A CORP OF SWITZERLAND
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Filing: 1983-11-16
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Granted: 1985-04-09
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Expires: 2003-11-16
Abstract
Abstract In the process of electrolysis of aqueous alkali metal halide solutions to produce hypohalite, halogen, halate and/or perhalate, the improvement comprising operating the electrolysis at least intermittently at a pressure less than 0.7 atmosphere, preferably sodium chloride solutions.
Inventors
- 👤 Placido M. Spaziante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:59
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/24; C25B1/26; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/467; C02F1/4672; C02F1/4674; C02F1/46109; C02F2001/46128; C02F2103/00; C02F2103/08; C02F2301/00; C02F2301/06; C02F2301/063; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
49 words
In the process of electrolysis of sea water in a cell with an anode compartment and a cathode compartment to produce hypohalite, halogen, halate and/or perhalate, the improvement comprising effecting the electrolysis of sea water at least intermittently at a pressure less than 0.7 atmosphere in the cathode compartment.
Claim 2
Dependent Claim
49 words
In the process of electrolysis of sea water in a cell with an anode compartment and a cathode compartment to produce hypohalite, halogen, halate and/or perhalate, the improvement comprising effecting the electrolysis of sea water at least intermittently at a pressure less than 0.7 atmosphere in the cathode compartment.
Claim 3
Dependent Claim
32 words
The process of claim 1 wherein the reduced pressure is sufficient to evaporate water to maintain the seawater in the cell at 15° to 40° C. and recovering a sodium hypochlorite solution.
Claim 4
Dependent Claim
35 words
The process of claim 1 wherein the reduced pressure is sufficient to evaporate water at a rate to maintain the seawater in the cell at 40° to 100° C. and recovering a sodium chlorite solution.
Claim 5
Dependent Claim
18 words
The process of claim 1 wherein the anode and cathode for the electrolysis are separated by a diaphragm.
Claim 6
Dependent Claim
18 words
The process of claim 1 wherein the anode and cathode for the electrolysis are separated by a membrane.
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) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |