| 李昊,吕亚峰,胡凯光,张嘉豪,王福文.某难处理多金属矿石综合浸出铀、铜、银试验研究[J].南华大学学报(自然科学版),2019,33(6):64~67, 83.[LI Hao,Lü Yafeng,HU Kaiguang,ZHANG Jiahao,WANG Fuwen.Study on Comprehensive Leaching of Uranium,Copper and Silver from a Refractory Ore[J].Journal of University of South China(Science and Technology),2019,33(6):64~67, 83.] |
| 某难处理多金属矿石综合浸出铀、铜、银试验研究 |
| Study on Comprehensive Leaching of Uranium,Copper and Silver from a Refractory Ore |
| 投稿时间：2019-06-25 |
| DOI： |
| 中文关键词: 铀矿石 铜 氯化焙烧 硫酸浸出 浸出率 |
| 英文关键词:uranium ore copper chlorination roasting sulfuric acid leaching leaching rate |
| 基金项目:湖南省自然科学基金项目(2015JJ2129) |
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| 中文摘要: |
| 针对某难浸铀矿石,采用“氯化焙烧-硫酸浸出”工艺进行处理提取铀、铜、银。研究结果表明,最佳氯化焙烧实验条件为氯化钠用量6%,氯化焙烧温度 460 ℃,氯化焙烧时间2 h,焙烧液固比0.2∶1。对氯化焙烧后的矿样进行硫酸浸出,浸出条件为:硫酸浓度30 g/L、浸出时间30 min、浸出温度70 ℃、液固比2∶1,此时金属离子铀、铜、银的浸出率分别为铀85.08%、铜95.82%、银91.80%。 |
| 英文摘要: |
| A refractory uranium ore was treated by the process of“Chloridizing roast-Sulfuric acid leaching”for recovery of uranium,copper and silver.The optimum conditions of chloridizing roast were obtained as follows:the addition of NaCl 6%,the roast temperature 460 ℃,reaction time 2 h,the ratio of liquid to solid is 0.2∶1.Materials from roasting were leached by sulphuric acid,and parameters were optimized as follows:the acidity of sulphuric acid was 30 g/L,leaching time was 30 min,leaching temperature was 70 ℃,and liquid to solid ratio was 2∶1.The results are consistent with the thermodynamic analysis,as leaching rates of uranium,copper and silver are 85.08% ,95.82% and 91.80%. |
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