Patent US3266557A successfully refreshed from Google Patents.
US3266557A
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Apparatus and method for treating phosphoric acids and the like
Assignee: Armour and Co
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Filing: 1964-03-25
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Granted: 1966-08-16
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Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Mustian
- 👤 Phillip E Hynson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:39
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/24; Y; Y10; Y10S; Y10S159/00; Y10S159/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A PROCESS FOR CONCENTRATING WET PROCESS PHOSPHORIC ACID CONTAINING IMPURITIES, THE STEPS OF INTRODUCING SAID WET PROCESS PHOSPHORIC ACID INTO A DEHYDRATION ZONE HAVING A VAPOR OUTLET IN THE UPPER PORTION THEREOF AND MAINTAINING A POOL THEREOF IN THE LOWER PATH OF SAID ZONE SAID ZONE PROVIDING AN UNOBSTRUCTED PATH FOR VAPOR FLOW TO SAID VAPOR OUTLET, DIRECTING UPON THE SURFACE OF SAID POOL JETS OF HOT COMBUSTION GASES AT AN INCLINATION TO SAID POOL FOR HEATING SAID ACID TO VAPORIZE WATER AND AT A VELOCITY TO ENTRAIN ACIS DROPLETS, WITHDRAWING GAS AND VAPORS FROM THE UPPER PORTION OF SAID ZONE, COLLECTING ENTRAINED ACID DROPLETS IN SAID VAPOR SPACE ABOVE SAID POOL AND WITHDRAWING THE SAME, AND WITHDRAWING ACID FROM SAID POOL.
Claim 2
Dependent Claim
123 words
IN A PROCESS FOR CONCENTRATING WET PROCESS PHOSPHORIC ACID CONTAINING IMPURITIES, THE STEPS OF INTRODUCING SAID WET PROCESS PHOSPHORIC ACID INTO A DEHYDRATION ZONE HAVING A VAPOR OUTLET IN THE UPPER PORTION THEREOF AND MAINTAINING A POOL THEREOF IN THE LOWER PATH OF SAID ZONE SAID ZONE PROVIDING AN UNOBSTRUCTED PATH FOR VAPOR FLOW TO SAID VAPOR OUTLET, DIRECTING UPON THE SURFACE OF SAID POOL JETS OF HOT COMBUSTION GASES AT AN INCLINATION TO SAID POOL FOR HEATING SAID ACID TO VAPORIZE WATER AND AT A VELOCITY TO ENTRAIN ACIS DROPLETS, WITHDRAWING GAS AND VAPORS FROM THE UPPER PORTION OF SAID ZONE, COLLECTING ENTRAINED ACID DROPLETS IN SAID VAPOR SPACE ABOVE SAID POOL AND WITHDRAWING THE SAME, AND WITHDRAWING ACID FROM SAID POOL.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |