US2861871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of chlorine dioxide
Assignee: Solvay SA
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Filing: 1956-10-08
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Granted: 1958-11-25
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Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Germano Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:27
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/02; C01B11/022; C01B11/023; C01B11/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE PREPARATION OF CHLORINE DIOXIDE FROM SODIUM CHLORATE AND HYDROCHLORIC ACID WHICH COMPRISES THE STEPS OF INTRODUCING HYDROCHLORIC ACID INTO A SOLUTION OF SODIUM CHLORATE IN AN AMOUNT WHICH IS GREATER THAN THE STOICHIOMETRIC QUANTITY CORRESPONDING TO THE CHLORATE TO PRODUCE A MIXTURE OF CHLORINE DIOXIDE AND CHLORINE, THE TEMPERATURE BEING MAINTAINED AT A VALUE SUFFICIENTLY BELOW 10*C. THAT THE CHLORINE DIOXIDE WHICH IS FORMED REMAINS SUBSTANTIALLY COMPLETELY IN SOLUTION, AND CONTINUING THE REACTION UNTIL AT LEAST SOME OF THE SODIUM CHLORIDE FORMED IN THE COURSE OF THE REACTION PRECIPITATES, SEPARATING THE SODIUM CHLORIDE FROM THE SOLUTION, DESORBING THE SOLUTION TO SEPARATE THE CHLORINE DIOXIDE AND ANY CHLORINE CONTAINED THEREIN.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE PREPARATION OF CHLORINE DIOXIDE FROM SODIUM CHLORATE AND HYDROCHLORIC ACID WHICH COMPRISES THE STEPS OF INTRODUCING HYDROCHLORIC ACID INTO A SOLUTION OF SODIUM CHLORATE IN AN AMOUNT WHICH IS GREATER THAN THE STOICHIOMETRIC QUANTITY CORRESPONDING TO THE CHLORATE TO PRODUCE A MIXTURE OF CHLORINE DIOXIDE AND CHLORINE, THE TEMPERATURE BEING MAINTAINED AT A VALUE SUFFICIENTLY BELOW 10*C. THAT THE CHLORINE DIOXIDE WHICH IS FORMED REMAINS SUBSTANTIALLY COMPLETELY IN SOLUTION, AND CONTINUING THE REACTION UNTIL AT LEAST SOME OF THE SODIUM CHLORIDE FORMED IN THE COURSE OF THE REACTION PRECIPITATES, SEPARATING THE SODIUM CHLORIDE FROM THE SOLUTION, DESORBING THE SOLUTION TO SEPARATE THE CHLORINE DIOXIDE AND ANY CHLORINE CONTAINED THEREIN.
References Cited (Backward Citations)
CA465168A
Cited
US2317443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |