US2833624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chlorine dioxide
Assignee: EIDP Inc
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Filing: 1956-10-02
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Granted: 1958-05-06
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Expires: 1976-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jerome W Sprauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/02; C01B11/022; C01B11/023; C01B11/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
THE METHOD OF PRODUCING CHLORINE DIOXIDE COMPRISING CONTINUOUSLY FEEDING, IN REACTING PROPORTIONS TO PRODUCE CHLORINE DIOXIDE, AQUEOUS SOLUTIONS OF A CHLORATE OF THE GROUP CONSISTING OF THE ALKALI METAL CHLORATES, THE ALKALINE EARTH METAL CHLORATES AND MANGESIUM CHLORATE; A CHLORIDE OF THE GROUP CONSISTING OF THE ALKALI METAL CHLORIDES, THE ALKALINE EARTH METAL CHLORIDES, MAGNESIUM CHLORIDE AND HYDROGEN CHLORIDE; HYDROGEN PEROXIDE AND A STRONG MINERAL ACID INTO A REACTION ZONE WHEREIN SAID SOLUTIONS ARE RAPIDLY MIXED AND THE RESULTING MIXTURE IS MAINTAINED FOR A TIME NOT EXCEEDING 5 MINUTES AT A TEMPERATURE IN THE RANGE 75 TO 100*C., THE SOLUTION OF SAID ACID BEING FED INTO SAID ZONE SEPARATELY FROM THE SOLUTION OF SAID CHLORATE, WHILE CONTINUOUSLY REMOVING REACTED MIXTURE COMPRISING A SOLUTION OF CHLORINE DIOXIDE FROM SAID REACTION ZONE AT A RATE CORRESPONDING TO THE RATE OF FEED OF MATERIALS INTO SAID REACTION ZONE, SAID CHLORIATE, CHLORIDE AND HYDROGEN PEROXIDE BEING EMPLOYED IN PROPORTIONS EQUIVALENT TO 0.1 TO 2 MOLES OF CHLORIDE ION AND 0.2 TO 1 MOLE OF PEROXIDE PER MOLE OF CHLORATE ION.
Claim 2
Independent Claim
176 words
THE METHOD OF PRODUCING CHLORINE DIOXIDE COMPRISING CONTINUOUSLY FEEDING, IN REACTING PROPORTIONS TO PRODUCE CHLORINE DIOXIDE, AQUEOUS SOLUTIONS OF A CHLORATE OF THE GROUP CONSISTING OF THE ALKALI METAL CHLORATES, THE ALKALINE EARTH METAL CHLORATES AND MANGESIUM CHLORATE; A CHLORIDE OF THE GROUP CONSISTING OF THE ALKALI METAL CHLORIDES, THE ALKALINE EARTH METAL CHLORIDES, MAGNESIUM CHLORIDE AND HYDROGEN CHLORIDE; HYDROGEN PEROXIDE AND A STRONG MINERAL ACID INTO A REACTION ZONE WHEREIN SAID SOLUTIONS ARE RAPIDLY MIXED AND THE RESULTING MIXTURE IS MAINTAINED FOR A TIME NOT EXCEEDING 5 MINUTES AT A TEMPERATURE IN THE RANGE 75 TO 100*C., THE SOLUTION OF SAID ACID BEING FED INTO SAID ZONE SEPARATELY FROM THE SOLUTION OF SAID CHLORATE, WHILE CONTINUOUSLY REMOVING REACTED MIXTURE COMPRISING A SOLUTION OF CHLORINE DIOXIDE FROM SAID REACTION ZONE AT A RATE CORRESPONDING TO THE RATE OF FEED OF MATERIALS INTO SAID REACTION ZONE, SAID CHLORIATE, CHLORIDE AND HYDROGEN PEROXIDE BEING EMPLOYED IN PROPORTIONS EQUIVALENT TO 0.1 TO 2 MOLES OF CHLORIDE ION AND 0.2 TO 1 MOLE OF PEROXIDE PER MOLE OF CHLORATE ION.
References Cited (Backward Citations)
US2317443A
Cited
US2332181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |