某铀矿石酸法浸出工艺条件试验研究  

Technology Conditional Experiment Study on Acid Leaching Process for a Uranium Ore

作　　者：黄永[1] 刘会武[1] 师留印[1] 贾秀敏[1] 杨剑飞[1] 陈天宝[1] 刘忠臣[1] HUANG Yong;LIU Hui-wu;SHI Liu yin;JIA Xiu-min;YANG Jian-fei;CHEN Tian-bao;LIU Zhong-chen(Beijing Research Institute of Chemical Enginccring and Metallurgy, CNNC, Beijing 101149, China)

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《铀矿冶》2018年第2期88-92,共5页Uranium Mining and Metallurgy

摘　　要：为了解决我国西北部某铀矿矿石硬度较大、酸耗较慢等问题,通过搅拌浸出条件试验、柱浸条件试验及强化试验,研究了酸用量、氧化剂用量、矿石粒度、搅拌时间、浸出温度、液固体积质量比对该矿石浸出工艺的影响。研究表明:在矿石粒度-200目、硫酸用量(与矿石质量比)8%、软锰矿用量(与矿石质量比)1.5%、浸出液固体积质量比为1∶1mL/g、常温下搅拌浸出2h的条件下,金属铀渣计浸出率可达到91%。In order to solve the problem of high hardness and slow acid consumption of a uranium ore in northwestern China,the effects of acid dosage,oxidant dosage,ore particle size,stirring time,leaching temperature and liquid-solid volume ratio on the leaching process were studied by agitation leaching conditional test,column leaching test and strengthening test.The results show that the leaching rate of the uranium by slag calculation can reach 90% when the ore particle size is-200 mesh,the amount of sulfuric acid consumption is 8%,the amount of pyrolusite consumption is 1.5%,the ratio of leaching liquid volume to solid mass ratio is 1∶1 mL/g,the leaching time is 2 hand the temperature of leaching is 25 ℃.

关 键 词：铀矿石 搅拌浸出试验 柱浸试验 强化试验 

分 类 号：TL212.12[核科学技术—核燃料循环与材料]