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A Countercurrent Column for Fluid-bed Ion Exchange of Uranium Ore Slurries.

Rosenbaum-JB; Ross-JR
Ch in Proc Internat Symp on Hydrometallurgy AIME 1973 Feb; :535-551
Bureau of Mines research has resulted in the development of fluid- bed ion-exchange columns for recovering uranium from slime pulps. In pilot plant tests, slime slurries containing up to 6 percent solids were processed at flow rates of 10 gallons per square foot per minute with high uranium recoveries and efficient resin loadings. Uranium was effectively eluted in a laboratory fluid-bed elution column at eluate-to-resin ratios of less than 5:1 and eluate flow rates of 3 gallons per square foot per minute. Construction costs of mills using these improved ion exchange techniques are estimated to be 25 percent less than for mills using solvent extraction of clear solutions. For mills having a capacity of 2,000 to 2,500 tons of ore per day, the saving would be in the range of $2.5 million. In addition, a saving of about $0.80 Per ton of ore in total operating costs is indicated.
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OP 78-73
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Ch. in Proc. Internat. Symp. on Hydrometallurgy, AIME, Feb. 26-Mar. 1, 1973, PP. 535-551