草桃背矿床原地破碎细菌浸出试验研究  

RESEARCH ON BACTERIA STOPE LEACHING OF URANIUM ORE IN CAOTAOBEI DEPOSIT

作　　者：胡凯光[1] 王清良[1] 刘迎九[1] 黄伟[1] 李凌波[1] 全爱国[2] 王振军[3] 

机构地区：[1]南华大学建筑工程与资源环境学院,衡阳421001 [2]核工业北京化工冶金研究院,北京100082 [3]中国核工业集团公司719铀矿

出　　处：《中国矿业》2003年第7期51-53,共3页China Mining Magazine

摘　　要：介绍了草桃背矿床原地破碎细菌浸出结果 ,浸出液固比 2 89∶1,酸耗 2 1 1kg/t,浸出铀金属 7 2 12t,浸出液最高铀金属浓度 3 60 0mg/L ,平均 3 3 9mg/L ,液计浸出率 72 2 1%、渣计浸出率79 2 6% ;探讨了细菌在原地破碎浸出中的作用 ,试验表明细菌浸出有利于提高浸出液中铀质量浓度、降低酸耗、节省部分硫酸。The experiment on bacteria stope leaching of uranium ore in Caotaobei deposit is introduced in this paper.The liquid-solid ratio is 2 89∶1 and acid consumption is 21 1 kg/t ore,leaching Uranium quantity is 7 212t.The heightest content of Uranium in leaching solution is 3600mg/L.Average content is 339mg/L.Leaching Uranium rate 72 21%(by liquid) or 79 26%(by tailing).The bacterial function has been discussed in the stope leaching.The results of pilot-plant bacteria leaching test show that the leaching rate of uranium has been rasised and the acid consumption has also been reduced and the time of bacteria stope leaching is shortened.

关 键 词：原地破碎浸出 细菌浸出 铀矿 硫化矿 工艺流程 生物反应器 质量浓度 活性检查试验 硫酸 

分 类 号：TD868.337[矿业工程—金属矿开采]