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Patent US3312609A successfully refreshed from Google Patents.
US3312609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brine electrolysis
Assignee: Hooker Chemical Corp
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Filing: 1965-10-05
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Granted: 1967-04-04
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Expires: 1985-10-05
Abstract
No abstract record available.
Inventors
- 👤 Morton S Kircher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:15
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A METHOD FOR CONTINUOUSLY ELECTROLYZING AQUEOUS ALKALI METAL CHLORIDE BRINE TO PRODUCE CHLORINE, HYDROGEN AND ALKALI METAL HYDROXIDE UNDER THE INFLUENCE OF A DECOMPOSITION VOLTAGE AND USING A POROUS DIAPHRAGM TYPE CELL MEANS, WHEREIN BRINE AND HYDROGEN CHLORIDE ARE BEING FED INTO THEANOLYTE OF SAID CELL MEANS, THE IMPROVEMENT WHICH COMPRISES: MAINTAINING THEANLYTE PH IN A NORMAL RANGE BETWEEN 1.4 AND 4.0 AND MAINTAINING THE ANOLYTE LEVEL IN SAID CELL MEANS AT ITS PREDETERMINED NORMAL LEVEL SO THAT THE SAID POROUS DIAPHRAHM IS PREVENTED FROM TIGHTENING UP FROM THE HYDROGEN CHLORIDE ADDITION BY MAINTAINING THE ALKALI METAL HYDROXIDE CONCENTRATION IN THE CATHOLYTE ABOVE AT LEAST 0.725 MOLES PER LITER ALKALI METAL HYDROXIDE BY CONTROLLING THE BRINE AND HDYROGEN CHLORIDE FEED RATES.
Claim 2
Dependent Claim
122 words
IN A METHOD FOR CONTINUOUSLY ELECTROLYZING AQUEOUS ALKALI METAL CHLORIDE BRINE TO PRODUCE CHLORINE, HYDROGEN AND ALKALI METAL HYDROXIDE UNDER THE INFLUENCE OF A DECOMPOSITION VOLTAGE AND USING A POROUS DIAPHRAGM TYPE CELL MEANS, WHEREIN BRINE AND HYDROGEN CHLORIDE ARE BEING FED INTO THEANOLYTE OF SAID CELL MEANS, THE IMPROVEMENT WHICH COMPRISES: MAINTAINING THEANLYTE PH IN A NORMAL RANGE BETWEEN 1.4 AND 4.0 AND MAINTAINING THE ANOLYTE LEVEL IN SAID CELL MEANS AT ITS PREDETERMINED NORMAL LEVEL SO THAT THE SAID POROUS DIAPHRAHM IS PREVENTED FROM TIGHTENING UP FROM THE HYDROGEN CHLORIDE ADDITION BY MAINTAINING THE ALKALI METAL HYDROXIDE CONCENTRATION IN THE CATHOLYTE ABOVE AT LEAST 0.725 MOLES PER LITER ALKALI METAL HYDROXIDE BY CONTROLLING THE BRINE AND HDYROGEN CHLORIDE FEED RATES.
References Cited (Backward Citations)
US2954333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |