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Keywords: leachate
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Journal Articles
SPE J. 25 (06): 881–885.
Paper Number: SPE-11437-PA
Published: 01 December 1985
... in slow-leaching uranium ores, thus increasing exposure of the uranium mineral sites to contact by the leachate. Scoping batch leach tests showed that a leachate such as H2SO4 with H2O2 and with ferric ion added gave good racoveries at a fast rate from Crownpoint refractory ore. For detailed study...
Journal Articles
SPE J. 25 (06): 875–880.
Paper Number: SPE-11436-PA
Published: 01 December 1985
... upstream oil & gas uranium ore ore recovery efficiency sodium hypochlorite concentration naoci concentration metals & mining leachate carbonaceous material batch test crownpoint ore naoci crownpoint leach test naocl new mexico uranium oxidant rate constant In-Situ Leaching...
Journal Articles
SPE J. 24 (05): 563–574.
Paper Number: SPE-11045-PA
Published: 01 October 1984
..., and scanning electron microscopic (SEM) petrographic microscopic, and scanning electron microscopic (SEM) examinations. In one ore trend where uraninite was the principal uranium mineral, studies showed that (1) the majority of uranium minerals was readily accessible to the leachate on a microscopic scale, (2...
Journal Articles
SPE J. 23 (05): 809–818.
Paper Number: SPE-10628-PA
Published: 01 October 1983
... temperature. Leaching tests were made with groundwater to observe the ability of spent shale to remove materials from groundwater and the possible ability of those materials to plug the pore structure of the spent shale and to minimize further leaching. The factor having the greatest effect on leachate...
Journal Articles
SPE J. 23 (02): 377–386.
Paper Number: SPE-10232-PA
Published: 01 April 1983
..., intermediate, and slow. However, there was variability in leach rates, both in samples from different areas and in samples taken at different depths in the same well. Fast rates and recoveries greater than 80% were observed in most column pack tests, but there was variation with leachate composition and sample...
Journal Articles
SPE J. 23 (02): 387–396.
Paper Number: SPE-11670-PA
Published: 01 April 1983
... amounts of calcium and magnesium ions were also produced during the presaturation with NH4HCO3 preceding the oxidation stage. Introduction A leachate that has sometimes been used for in-situ leaching of uranium ores is a solution of ammonium bicarbonate (NH4HCO3) containing an oxidant-usually hydrogen...
Journal Articles
SPE J. 22 (06): 1013–1022.
Paper Number: SPE-10231-PA
Published: 01 December 1982
... trends, ore contain- ing coffinite in association with organic carbonaceous material tended to be "intractable" to leaching with a sulfuric acid/sodium chlorate leachate. Experimental Three types of leach tests were used to evaluate the leach rate and the uranium (expressed as U 3 ° 8) recovery...

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