US2843450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering uranium mineral values
Assignee: Individual
•
Filing: 1955-01-18
•
Granted: 1958-07-15
•
Expires: 1975-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold W Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:08
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0208; C22B60/0217; C22B60/0221; C22B60/0247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF RECOVERING MINERAL VALUES FROM LEACHED ZONE MATERIAL CONTAINING URANIUM AND ALUMINUM PHOSPHATE, FROM FLORIDA PHOSPHATE PEBBLE OVERBURDEN, WHICH COMPRISES HEAT TREATING THE LEACHED ZONE MATERIAL AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 300*C. AND ABOUT 1100*C., DIGESTING THE HEAT TREATED MATERIAL WITH AQUEOUS AMMONIUM BISULFATE SOLUTION IN QUANTITY TO GIVE BETWEEN ABOUT 55% AND ABOUT 105% ACIDULATON, SEPARATING INSOLUBLE MATERIAL FROM THE DIGEST SOLUTION CONTAINING WATER SOLUBLE REACTION PRODUCTS, AND RECOVERING AT LEAST ONE OF THE ALUMINUM, URANIUM AND PHOSPHATE VALUES.
Claim 2
Independent Claim
85 words
THE METHOD OF RECOVERING MINERAL VALUES FROM LEACHED ZONE MATERIAL CONTAINING URANIUM AND ALUMINUM PHOSPHATE, FROM FLORIDA PHOSPHATE PEBBLE OVERBURDEN, WHICH COMPRISES HEAT TREATING THE LEACHED ZONE MATERIAL AT A TEMPERATURE IN THE RANGE BETWEEN ABOUT 300*C. AND ABOUT 1100*C., DIGESTING THE HEAT TREATED MATERIAL WITH AQUEOUS AMMONIUM BISULFATE SOLUTION IN QUANTITY TO GIVE BETWEEN ABOUT 55% AND ABOUT 105% ACIDULATON, SEPARATING INSOLUBLE MATERIAL FROM THE DIGEST SOLUTION CONTAINING WATER SOLUBLE REACTION PRODUCTS, AND RECOVERING AT LEAST ONE OF THE ALUMINUM, URANIUM AND PHOSPHATE VALUES.
References Cited (Backward Citations)
CA503098A
Cited
US2767046A
Cited
US1015499A
Cited
US1948888A
Cited
US2227833A
Cited
US2405426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |