By P N Paleĭ; D I Ri︠a︡bchikov; Mark Moiseevich Seni︠a︡vin; Institut geokhimii i analiticheskoĭ khimii im. V.I. Vernadskogo
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Extra info for Analytical chemistry of uranium
ISL involves circulation of oxygenated groundwater through the porous ore to dissolve the uranium oxide and bring it to the surface. This can also be done with slightly acid or alkaline solutions to keep the uranium in solution. The uranium oxide is then recovered from the solution. The choice of mining method in a particular deposit is governed by the nature of the ore, safety concerns, and economic considerations. 2 Uranium Milling In order to minimize shipments of uranium-bearing ores, the milling operations are usually carried out close to the mine.
In principle, uranium ore concentrates may be directly fluorinated to produce UF6, but this process consumes large amounts of fluorine and is not applied commercially. 5. 11 Comparison of two processes for production of UF6 from uranium ore concentrates: the classic process and the Honeywell fluoride volatility process. ) In this section, a generic method where UF6 is the feed material will be briefly described. 75% for some research, medical isotopes, and material testing or 90% for special nuclear materials).
Technology for Production of Uranium Oxide for Nuclear Power Reactor, Nuclear Fuel Complex, Hyderabad, India, 2000. htm, accessed July 26, 2014. An alternative method for production of UF6 (the fluoride volatility process) for enrichment facilities from uranium ore concentrates was developed by Honeywell and is practiced at its Metropolis plant. 11 schematically compares this process with the classic process described earlier. In principle, the fluoride volatility process has fewer stages and is simpler than the conventional process.