Patent US2881052A successfully refreshed from Google Patents.
US2881052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chlorine dioxide
Assignee: Honeywell International Inc
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Filing: 1953-06-08
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Granted: 1959-04-07
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Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Arlie P Julien
- 👤 Stuart M Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:13
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/02; C01B11/022; C01B11/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN THE PRODUCTION OF CHLORINE DIOXIDE FROM ACIDIFIED AQUEOUS CHLORATE SOLUTION BY MEANS OF A REDUCING AGENT, THE IMPROVEMENT WHICH COMPRISES FORMING A PARTICALLY REDUCED STRONGLY ACIDIC AQUEOUS SHLORATE SOLUTION CONTAINING PER 100 PARTS BY WEIGHT OF SOLUTION 3 TO 9 PARTS OF C103 AND 10 TO 50 PARTS OF SO4 ADDING TO SAID SOLUTION INCREMENTS OF AQUEOUS CHLORATE SOLUITON AND EXCESS OF SULFURIC ACID; ADDING TO SAID SOLUTION INCREMENTS OF REDUCING AGENT, WHEREBY CHLORINE DIOXIDE IS FORMED, THE AMOUNT OF ADDED REDUCING AGENT NOT EXCEEDING THAT REQUIRED TO REDUCE THE ADDED C103 IN THE RESULTING STRONG LY ACIDIC AQUEOUS CHLORATE SOLUTIONTO C102, PASSING A STREAM OF INERT GAS IN CONTACT WITH THE RESULTING CHLORATE SOLUTION; REMOVING DECREMENTS OF THE RESULTING PARTIALLY REDUCED CHLORATE SOLUTION; AND REMOVING RESULTING CHLORINE DIOXIDE WITH THE EXIT GAS STREAM.
Claim 2
Dependent Claim
135 words
IN THE PRODUCTION OF CHLORINE DIOXIDE FROM ACIDIFIED AQUEOUS CHLORATE SOLUTION BY MEANS OF A REDUCING AGENT, THE IMPROVEMENT WHICH COMPRISES FORMING A PARTICALLY REDUCED STRONGLY ACIDIC AQUEOUS SHLORATE SOLUTION CONTAINING PER 100 PARTS BY WEIGHT OF SOLUTION 3 TO 9 PARTS OF C103 AND 10 TO 50 PARTS OF SO4 ADDING TO SAID SOLUTION INCREMENTS OF AQUEOUS CHLORATE SOLUITON AND EXCESS OF SULFURIC ACID; ADDING TO SAID SOLUTION INCREMENTS OF REDUCING AGENT, WHEREBY CHLORINE DIOXIDE IS FORMED, THE AMOUNT OF ADDED REDUCING AGENT NOT EXCEEDING THAT REQUIRED TO REDUCE THE ADDED C103 IN THE RESULTING STRONG LY ACIDIC AQUEOUS CHLORATE SOLUTIONTO C102, PASSING A STREAM OF INERT GAS IN CONTACT WITH THE RESULTING CHLORATE SOLUTION; REMOVING DECREMENTS OF THE RESULTING PARTIALLY REDUCED CHLORATE SOLUTION; AND REMOVING RESULTING CHLORINE DIOXIDE WITH THE EXIT GAS STREAM.
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |