Patent US2830875A successfully refreshed from Google Patents.
US2830875A
Expired / Lapsed
US
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Process for production of ammonium nitrate
Assignee: Commercial Solvents Corp
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Filing: 1956-07-06
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Granted: 1958-04-15
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Expires: 1976-07-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert A Shurter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/18; C01C1/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A ONE-STEP PROCESS FOR PRODUCING MOLTEN AMMONIUM NITRATE CONTAINING REGULATED AMOUNTS OF WATER BY CONTINOUSLY REACTING, AT A TEMPERATURE OF ABOUT 160-300*C., AMMONIA VAPORS WITH AQUOEOUS NITRIC ACID IN A PACKED REACTION ZONE FREE TO DRAIN AT ITS LOWER END AND REMOVING THE REACTION PRODUCTS IN TWO PHASES, ONE OF WHICH IS STEAM AND THE OTHER OF WHICH IS MOLTEN AMMONIUM NITRATE, THE IMPROVEMENT WHICH COMPRISES INTRODUCING FROM 60% TO 10% OF THE AQUEOUS NITRIC ACID HAVING A CONCENTRATION RANGING FROM 40 TO 65% TO THE REACTION ZONE IN THE FORM OF PREHEATED VAPOROUS AQUEOUS NITRIC ACID, WITH THE REMAINDER BEING IN THE FORM OF PREHEATED LIQUID AQUEOUS NITRIC ACID.
Claim 2
Dependent Claim
111 words
IN A ONE-STEP PROCESS FOR PRODUCING MOLTEN AMMONIUM NITRATE CONTAINING REGULATED AMOUNTS OF WATER BY CONTINOUSLY REACTING, AT A TEMPERATURE OF ABOUT 160-300*C., AMMONIA VAPORS WITH AQUOEOUS NITRIC ACID IN A PACKED REACTION ZONE FREE TO DRAIN AT ITS LOWER END AND REMOVING THE REACTION PRODUCTS IN TWO PHASES, ONE OF WHICH IS STEAM AND THE OTHER OF WHICH IS MOLTEN AMMONIUM NITRATE, THE IMPROVEMENT WHICH COMPRISES INTRODUCING FROM 60% TO 10% OF THE AQUEOUS NITRIC ACID HAVING A CONCENTRATION RANGING FROM 40 TO 65% TO THE REACTION ZONE IN THE FORM OF PREHEATED VAPOROUS AQUEOUS NITRIC ACID, WITH THE REMAINDER BEING IN THE FORM OF PREHEATED LIQUID AQUEOUS NITRIC ACID.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |