Process for controlling calcium in a leach operation
A method for controlling calcium, e.g. calcite, build-up in the leach solution of a uranium and/or related values recovery operation wherein the leach solution is flowed through a value bearing ore to dissolve the desired values. A soluble fluoride, e.g. sodium fluoride, is added to the leach solution after it has passed through the ore to thereby precipitate calcium fluoride from the leach solution and lower the calcium content of the leach solution. The soluble fluoride may be added to the leach solution before the leach solution passes through the process equipment which is used to remove the values from the leach solution or the soluble fluoride may be added after the leach solution passes through the process equipment. If added before, it is preferable to also add a carbonate/bicarbonate solution along with the soluble fluoride to prevent coprecipitation of uranyl/desired value fluoride or to redissolve coprecipitated fluoride back into the leach solution.
- Assignee:
- Mobil Corp
- Patent Number(s):
- US 4312839
- OSTI ID:
- 5664465
- Country of Publication:
- United States
- Language:
- English
Similar Records
Acid pre-treatment method for in situ ore leaching
URANIUM RECOVERY FROM MAGNESIUM FLUORIDE SLAG. CARBONATE LEACHING
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CALCITE
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CONTROL
DISSOLUTION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IN-SITU PROCESSING
INJECTION WELLS
LEACHING
ORE PROCESSING
ORES
OXYGEN COMPOUNDS
PROCESSING
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM FLUORIDES
URANIUM ORES
WELLS