强化堆浸技术在大布铀矿床矿石堆浸中的应用  

Application of intensified heap leaching technology of uranium ores to Dabu uranium mine

作　　者：董春明 谢望南 邓淑珍 高云甲 

机构地区：[1]中核赣州金瑞铀业有限公司,江西赣州341000

出　　处：《铀矿冶》2014年第1期13-16,共4页Uranium Mining and Metallurgy

摘　　要：大布铀矿床矿石堆浸初步设计中,堆浸初期采用较高酸度(50g/L左右)的浸出剂喷淋浸出,然后根据浸出液余酸逐步降低浸出剂酸度。由于堆浸后期采用低酸度淋浸,浸出时间主要消耗在浸出率达到80%以后,致使浸出周期长,渣品位偏高,后处理能耗高。采用强化堆浸技术可达到缩短浸出周期、降低渣品位、减少能耗的目的。介绍强化堆浸技术在大布铀矿的应用,并进行经济技术评价。In the light of the preliminary design of uranium ore heap leaching for Dabu uranium mine,leaching agent with high concentration of sulfuric acid（about 50 g/L） was used to leach uranium from ores in the initial stage of heap leaching,and then the acidity of leaching agent was gradually reduced according to the concentration of sulfuric acid in leaching solution.Using the leaching agent with low concentration of sulfuric acid to leach uranium in the latter stage leaded to long leaching time,high content of uranium in the leaching residue,and high energy consumption in follow-up producing process.So an intensified heap leaching technology of uranium ores was put forward and adopted to shorten the leaching time and reduce the content of uranium in the leaching residue and the energy consumption.The application of the technology to Dabu uranium mine was introduced,and technical and economic evaluation was carried out.

关 键 词：铀矿石 强化堆浸 经济技术评价 

分 类 号：TL212[核科学技术—核燃料循环与材料]