Flotation of Pitchblende from Synthetic Mixtures and Ores; O FLOTIRUEMOSTI NASTURANA IZ ISKUSSTVENNYKH MINERAL'NYKH SMESEI I IZ RUD
The results of investigations illustrating the fundamental possibility of obtaining satisfactory grades and recoveries of pitchblende from synthetic mixtures and ores by flotation are presented. Naturally activated quartz and feldspars float just as readily as pitchblende and have optimum flotation pH values close to that of the uranium mineral. For this reason the selectivity of flotation of pitchblende from its gangue minerals is ordinarily very low. Pitchblende has been floated selectively from synthetic mixtures and ores by the combined adjustment of various factors. With two samples of quartz-feldspar pitchblende ores flotation gave concentration ratios of 32 and 18 with uranium recoveries amounting to about 90% of its content in the flotation feed. Alkyl acid phosphates possess distinct collecting properties with respect to pitchblende and other uranium oxide minerals. The flotation of uranium ores by alkyl phosphate derivatives features a number of peculiarities. A modifying agent greatly increases the selectivity of separation of pitchblende from the gangue. Flotation of a deslimed pitchblende ore with a complex gangue resulted in a very high recovery of unlocked pitchblende grains at a high concentration ratio (50 and over). Flotation of finely disseminated pitchblendeuranium black ores almost in all cases gives a high percentage of waste tailings (assaying less than 0.02% uranium). (auth)
- Research Organization:
- U.S.S.R.
- NSA Number:
- NSA-13-006403
- OSTI ID:
- 4269694
- Report Number(s):
- A/CONF.15/P/2062
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALKYL RADICALS
ALUMINUM SILICATES
CHEMICALS
CHEMISTRY
ENRICHMENT
ESTERS
FELDSPARS
FLOTATION
GRAIN SIZE
MINERALS
MIXING
ORE PROCESSING
PERFORMANCE
PHOSPHATES
PHOSPHORIC ACID
PITCHBLENDE
QUANTITY RATIO
QUARTZ
RECOVERY
SILICATES
SILICON OXIDES
STANDARDS
TESTING
URANINITES
URANIUM MINERALS
URANIUM OXIDES
USES