某酸法地浸铀矿山难浸出资源浸出研究  

Leaching Method for Difficultly Leaching Resources in a Acid Leaching Uranium Mine

作　　者：王如意 桂增杰 阳奕汉 任晓宇 韩军宁 WANG Ruyi;GUI Zengjie;YANG Yihan;REN Xiaoyu;HAN Junning(Inner Mongolia Mining Co.,Ltd.,CNNC,Hohhot 010010,China)

机构地区：[1]中核内蒙古矿业有限公司,内蒙古呼和浩特010010

出　　处：《铀矿冶》2025年第1期37-41,48,共6页Uranium Mining and Metallurgy

基　　金：中国铀业有限公司铀矿冶科研项目(巴彦乌拉铀矿床巴润矿段地浸采铀工业性试验研究)。

摘　　要：地浸采铀受矿床条件、溶浸环境等因素的影响,部分资源的利用率较低。为实现对这部分资源的合理开发,设计了浸出剂配制装置,在局部难浸出区域内,通过提高浸出剂(硫酸)浓度以强化浸出。试验结果表明,采用该装置进行浸出剂配制,浓度相对偏差在1.5%以内,可实现按区域或单孔精确稳定配酸;采用15~20 g/L硫酸做浸出剂,通过有针对性地局部加酸对难浸出铀资源进行强化浸出,可将单元铀浸采率由24.8%提高到53.7%。局部强化浸出方法的硫酸用量、余酸增量仅为整个采区强化浸出时的11.1%,能以较低的硫酸消耗实现对难浸出铀资源的浸出,且对后续水冶工艺的影响较小。The in-situ leaching of uranium is influenced by deposit conditions,leaching environments,and various other factors,resulting in a low utilization rate for certain resources.To facilitate the rational development of these resources,a device for preparing leaching agents was designed to enhance the leaching process by increasing the concentration of sulfuric acid in areas where the resources is difficult to leach.The results show that the relative deviation in concentration remains below 1.5%,allowing for precise and stable preparation of acid either regionally or at individual boreholes.By using a 15~20 g/L sulfuric acid solution as a leaching agent,the unit uranium leaching rate of the refractory leaching uranium resources can be increased from 24.8%to 53.7%.The amount of sulfuric acid used and the increase in residual acid are only 11.1%of those used for strengthening leaching results in the entire mining area.This device achieves the leaching of the refractory leaching uranium resources with low consumption of sulfuric acid and has little impact on subsequent hydrometallurgical processes.

关 键 词：地浸采铀 局部强化 浸出剂配制 强化浸出 

分 类 号：TL212.1[核科学技术—核燃料循环与材料]