Patent US2737445A successfully refreshed from Google Patents.
US2737445A
Expired / Lapsed
US
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Process for the thermal decomposition of metal nitrates
Assignee: Individual
•
Filing: 1951-09-14
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Granted: 1956-03-06
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Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
- 👤 Nossen Ernest Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:07
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/20; C01B21/38; C01B21/42; C01B13/00; C01B13/14; C01B13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR THE THERMAL DECOMPOSITION OF A METAL NITRATE OF WHICH THE METAL IS SELECTED FROM THE ELECTROMOTIVE SERIES STARTING WITH MAGNESIUM TOWARDS AND INCLUDING THE NOBLE METALS AND WHICH FORMS THE UNSTABLE N205 AS PRIMARY GASEOUS PRODUCT WHEN DECOMPOSED, INTO A SOLID PRODUCT AND NITRIC ACID COMPRISING THE STEPS OF: SUBJECTING THE METAL NITRATE TO A TEMPERATURE HIGHER THAN THE TEMPERATURE OF ITS DECOMPOSITION IN THE PRESENCE OF A CONTINUOUS FLOW OF STEAM, LIBERATING UNSTABLE N2O5 AND CAUSING ITS REACTION WITH SAID STEAM BEFORE IT BREAKS DOWN INTO LOWER NITRIC OXIDES, TO FORM NITRIC ACID VAPORS AND A SOLID PRODUCT AND CONDENSING SAID NITRIC ACID VAPORS FOR RECOVERY OF THE NITRIC ACID IN ITS LIQUID FORM.
Claim 2
Dependent Claim
118 words
A PROCESS FOR THE THERMAL DECOMPOSITION OF A METAL NITRATE OF WHICH THE METAL IS SELECTED FROM THE ELECTROMOTIVE SERIES STARTING WITH MAGNESIUM TOWARDS AND INCLUDING THE NOBLE METALS AND WHICH FORMS THE UNSTABLE N205 AS PRIMARY GASEOUS PRODUCT WHEN DECOMPOSED, INTO A SOLID PRODUCT AND NITRIC ACID COMPRISING THE STEPS OF: SUBJECTING THE METAL NITRATE TO A TEMPERATURE HIGHER THAN THE TEMPERATURE OF ITS DECOMPOSITION IN THE PRESENCE OF A CONTINUOUS FLOW OF STEAM, LIBERATING UNSTABLE N2O5 AND CAUSING ITS REACTION WITH SAID STEAM BEFORE IT BREAKS DOWN INTO LOWER NITRIC OXIDES, TO FORM NITRIC ACID VAPORS AND A SOLID PRODUCT AND CONDENSING SAID NITRIC ACID VAPORS FOR RECOVERY OF THE NITRIC ACID IN ITS LIQUID FORM.
References Cited (Backward Citations)
DE243840C
Cited
US982466A
Cited
FR538201A
Cited
GB188865A
Cited
US1552117A
Cited
US1761133A
Cited
CH191844A
Cited
US2127504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |