Patent US3563702A successfully refreshed from Google Patents.
US3563702A
Expired / Lapsed
US
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Production of chlorine dioxide
Assignee: Kemanord AB
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Filing: 1968-03-05
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Granted: 1971-02-16
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Expires: 1988-03-05
Abstract
Abstract THERE IS PROVIDED AN IMPROVED PROCESS FOR THE PRODUCTION OF CHLORINE DIOXIDE AND CHLORINE WHEREIN AN ALKALI METAL CHLORATE, CHLORIDE, AND A STRONG ACID ARE REACTED IN A SINGLE VESSEL IN THE PRESENCE OF A RELATIVELY SMALL AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF VANADIUM PENTOXIDE, SILVER IONS, MANGANESE IONS, DICHROMATE IONS, AND ARSENIC IONS. THIS PROCESS, ESPECIALLY ONE OF THE PREFERRED EMBODIMENTS THEREOF WHEREIN THE ACIDITY OF THE REACTION MIXTURE IS MAINTAINED AT BELOW ABOUT 4 NORMAL, IS SUPERIOR TO AND MORE EFFICIENT THAN PRIOR ART PROCESSES.
Inventors
- 👤 Harold De Vere Partridge
- 👤 Blaine O Schoepfle
- 👤 Arthur C Schulz
- 👤 Herbert J Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:03
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/02; C01B11/022; C01B11/023; C01B11/025; Y; Y10; Y10S; Y10S162/00; Y10S162/08
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |