US3116108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the granulation of ammonium nitrate
Assignee: Societe Belge de lAzote et des Produits Chimiques du Marly SA
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Filing: 1960-03-01
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Granted: 1963-12-31
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Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Brouwers Georges Edouar Joseph
- 👤 Dumont Walter
- 👤 Scoville Rene Jean Edouard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
C; C05; C05C; C05C1/00; C05C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PREPARATION OF NON-CAKING, HARD GRANULES CONSISTING OF ESSENTIALLY PURE AMMONIUM NITRATE, COMPRISING PROVIDING A HOMOGENEOUS MIXTURE OF AN AQUEOUS SOLUTION OF AT LEAST 95% OF SAID PURE AMMONIUM NITRATE AND BETWEEN 0.1 TO 1% BY WEIGHT OF HYDRATED ALUMINUM SULFATE AT A TEMPERATURE BETWEEN ABOUT 165* C. AND 170*C. SUCH THAT THE HYDRATED ALUMINUM SULPHATE LOSES ITS CRYSTALLIZATION WATER, GRANULATING AND DRYING SAID MIXTURE IN AIR MOVING COUNTERCURRENT TO THE GRANULES SUCH THAT THE ALUMINUM SULPHATE RE-COVERS ITS CRYSTALLIZATION WATER, THEN HARDENING, DRYING AND COOLING THE SAID GRANULES TO A TEMPERATURE BETWEEN ABOUT 80*C. AND 90*C.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF NON-CAKING, HARD GRANULES CONSISTING OF ESSENTIALLY PURE AMMONIUM NITRATE, COMPRISING PROVIDING A HOMOGENEOUS MIXTURE OF AN AQUEOUS SOLUTION OF AT LEAST 95% OF SAID PURE AMMONIUM NITRATE AND BETWEEN 0.1 TO 1% BY WEIGHT OF HYDRATED ALUMINUM SULFATE AT A TEMPERATURE BETWEEN ABOUT 165* C. AND 170*C. SUCH THAT THE HYDRATED ALUMINUM SULPHATE LOSES ITS CRYSTALLIZATION WATER, GRANULATING AND DRYING SAID MIXTURE IN AIR MOVING COUNTERCURRENT TO THE GRANULES SUCH THAT THE ALUMINUM SULPHATE RE-COVERS ITS CRYSTALLIZATION WATER, THEN HARDENING, DRYING AND COOLING THE SAID GRANULES TO A TEMPERATURE BETWEEN ABOUT 80*C. AND 90*C.
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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |