高酸耗包裹型难处理铀矿浸出方法研究  

Leaching method for wrapped uranium ore with high acid consumption

作　　者：周志全[1] 舒祖骏[1] 赵凤岐[1] 邓慧东[1] 任燕[1] 支梅峰 孟舒[1] 张海燕[1] 

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》2015年第2期117-121,共5页Uranium Mining and Metallurgy

摘　　要：某铀矿矿物组成主要为硅酸盐和石英,同时含有较高含量的碳酸盐矿物,一部分铀以石英和长石的包裹体形式存在。针对此铀矿开展了不同浸出工艺方法的研究,包括碱法条件试验、两段碱法浸出试验、加压碱浸试验、酸法条件试验、拌酸熟化浸出,并对矿石和浸出渣进行矿物学分析。结果表明,该类铀矿只能选用酸法搅拌浸出,铀浸出渣中w(U)为0.013%,浸出率在96%以上。A uranium ore, in which some uranium is wrapped by quartz, and fedspar, is mainly com- posed of silicate, quartz, and high content of carbonate as well. Conditional test of alkali leaching, two steps alkali leaching test, pressure alkali leaching test, conditional test of acid leaching, and acid currrng and pugging leaching test were conducted. Mineralogical analysis was carried out on ore and the leaching slag. Results show that acid agitation leaching is only accepted to the uranium ore, and u- ranium content in the leached slag can reach 0. 013% with leaching rate over 96%.

关 键 词：高酸耗 包裹 铀矿 浸出方法 

分 类 号：TL212.12[核科学技术—核燃料循环与材料]