US3079231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling process for hci-containing gas
Assignee: Diamond Shamrock Corp
•
Filing: 1959-08-24
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Granted: 1963-02-26
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Charles H Draper
- 👤 Robert C Sutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:51
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A METHOD OF COOLING HOT HYDROGEN CHLORIDE GAS SUBSEQUENT TO ITS MANUFACTURE AND PRIOR TO ITS ABSORPTION IN WATER TO FORM HYDROCHLORIC ACID, WHICH METHOD COMPRISES INTRODUCING SAID HOT HYDROGEN CHLORIDE GAS INTO AN ENCLOSED COOLING ZONE; CONTACTING SAID GAS WITHIN SAID COOLING ZONE WITH A CONCURRENTLY DIRECTD AQUEOUS COOLING MEDIUM SELECTED FROM THE GROUP CONSISTING OF WATER AND AQUEOUS SOLUTIONS OF HYDROCHLORIC ACID, SAID COOLING MEDIUM BEING INTRODUCED INTO SAID COOLING ZONE IN THE FORM OF A SPARY; MAINTAINING SAID GAS IN CONTACT WITH SAID COOLING MEDIUM, FOR A PERIOD OF TIME SUCH THAT THE TEMPERATURE OF SAID GAS IS REDUCED TO THE DESIRED LEVEL AND SUBSTANTIALLY ALL OF SAID COOLING MEDIUM IS SIMULTANEOUSLY VAPORIZED BY MEANS OF THE HEAT OF SAID GAS, SO THAT SUBSTANTIALLY NONE OF SAID GAS IS ABSORBED BY SAID COOLING MEDIUM; AND RECOVERING THE COOLED HYDROGEN CHLORIDE GAS FOR PASSAGE INTO AN ABSORBER; BY WHICH METHOD THE CAPACITY OF SAID ABSORBER FOR HYDROGEN CHLORIDE GAS IS INCREASED.
Claim 2
Independent Claim
163 words
A METHOD OF COOLING HOT HYDROGEN CHLORIDE GAS SUBSEQUENT TO ITS MANUFACTURE AND PRIOR TO ITS ABSORPTION IN WATER TO FORM HYDROCHLORIC ACID, WHICH METHOD COMPRISES INTRODUCING SAID HOT HYDROGEN CHLORIDE GAS INTO AN ENCLOSED COOLING ZONE; CONTACTING SAID GAS WITHIN SAID COOLING ZONE WITH A CONCURRENTLY DIRECTD AQUEOUS COOLING MEDIUM SELECTED FROM THE GROUP CONSISTING OF WATER AND AQUEOUS SOLUTIONS OF HYDROCHLORIC ACID, SAID COOLING MEDIUM BEING INTRODUCED INTO SAID COOLING ZONE IN THE FORM OF A SPARY; MAINTAINING SAID GAS IN CONTACT WITH SAID COOLING MEDIUM, FOR A PERIOD OF TIME SUCH THAT THE TEMPERATURE OF SAID GAS IS REDUCED TO THE DESIRED LEVEL AND SUBSTANTIALLY ALL OF SAID COOLING MEDIUM IS SIMULTANEOUSLY VAPORIZED BY MEANS OF THE HEAT OF SAID GAS, SO THAT SUBSTANTIALLY NONE OF SAID GAS IS ABSORBED BY SAID COOLING MEDIUM; AND RECOVERING THE COOLED HYDROGEN CHLORIDE GAS FOR PASSAGE INTO AN ABSORBER; BY WHICH METHOD THE CAPACITY OF SAID ABSORBER FOR HYDROGEN CHLORIDE GAS IS INCREASED.
References Cited (Backward Citations)
CA600459A
Cited
US1420209A
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US2295591A
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US2625463A
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US2444256A
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US2950180A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |