堆浸法从某低品位难选含铀钼矿中回收钼  

Molybdenum Recovery from One Uranium Ore by Heap Leaching Method

作　　者：杨剑飞[1] 师留印[1] 黄永[1] 张亚红 苏姣姣 张引亮 YANG Jian-fei;SHI Liu-yin;HUANG Yong;ZHANG Ya-hong;SU Jiao-jiao;ZHANG Yin-liang(Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China;Guyuan Uranium Corporation,Ltd.,CNNC,Guyuan 076561,Hebei,China)

机构地区：[1]核工业北京化工冶金研究院,北京101149 [2]中核沽源铀业有限责任公司,河北沽源076561

出　　处：《有色金属（冶炼部分）》2023年第2期73-76,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：中国核工业集团公司“龙腾2020”科技创新计划核心能力提升项目(中核科发[2014]111号)。

摘　　要：针对某低品位含铀钼矿钼浸出率不高、常规强化搅拌浸出固液分离困难等问题,研究了拌酸熟化-堆浸工艺,提出一种适合处理该矿石的工艺方法。试验考察了堆浸工艺参数矿石粒度、喷淋强度、浸出剂酸度、氧化剂用量和浸出时间对钼浸出率的影响,结果表明:在矿石粒度-3.2 mm、喷淋强度40~60 L(m^(2)·h),浸出剂酸度5 g L、浸出时间6~8 d的条件下,矿堆渗透性较好,钼浸出率可达73%。Address to low leaching rate of molybdenum and difficulty of liquid-solid separation under normal intensity stirring leaching,a method of acid curing-heap leaching was put forward.Effects of ore granularity,spray intensity,acidity of leachant,amount of oxidant,and extraction time on leaching rate of molybdenum were investigated.The results indicate that the leaching rate of molybdenum is 73%and there is no problem of ore heap penetrability under the conditions including ore granularity of 3.2 mm,spray intensity of 40—60 L(m^(2)·h),acidity of leachant of 5 g L,and extraction time of 6—8 days.

关 键 词：铀钼矿 拌酸熟化-堆浸 固液分离 

分 类 号：TF841.2[冶金工程—有色金属冶金]