Fractional factorial design for studying uranium carbonate leaching of Tahaggart's ore

被引：10
作者：
Gherbi, R. [1 ]
Becis, A. [1 ]
机构：
[1] Nucl Res Ctr Draria, Algiers, Algeria
来源：
INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2015年 / 143卷
关键词：
Fractional design; Uranium; Alkaline leaching; Normal-grade ore; EXTRACTION;
D O I：
10.1016/j.minpro.2015.09.001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Uranium carbonate leaching was performed on normal-grade Algerian ore, using a 2(4 - 1) fractional design. Effects of four working parameters: temperature, time, particle size, and carbonate dosage, taken each one at two levels, on the uranium recovery efficiency, were assessed and optimized. Results revealed that uranium can be quantitatively leached from Tahaggart's ore at a temperature of 140 degrees C, time of 4 h, a particle size of <300 mu m, and a carbonate dosage of 0.08 g/g(ore). Furthermore, by employing a regression analysis, an empirical model was developed to predict the recovery yield in the studied range of conditions. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：59 / 64
页数：6
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