期刊论文

Experiment study on roller bottle leaching with high pressure CO2＋O2 of a sandstone type uranium ore from Xinjiang

中文

中国矿业

1004-4051

2016

25

6

100-103

10.3969/j.issn.1004-4051.2016.06.023

本校为第一机构

根据CO2+ O2地浸采铀工艺技术特点,选取新疆某铀矿山取得的砂岩岩芯铀矿石,自行设计了CO2+ O2加压滚瓶浸出试验装置,并进行了室内CO2+ O2加压滚瓶浸出试验.结果表明,当CO2+O2总压为2.0 MPa,液固比10:1时,金属铀浸出率达到70％,采用多级浸出和后期加氧化剂强化浸出,铀浸出率达90％以上.说明该矿床铀矿石适合CO2+ O2浸出工艺,试验结果可为CO2+ O2现场浸出试验和工程设计提供依据和指导.

According to the characteristics of CO2＋O2 in-situ leaching technology,a roller bottle leaching device with CO2＋O2 pressure was designed for the rock core samples of sandstone uranium deposit in Xinjiang province.The lab leaching experiments were conducted with the roller bottle.The results indicated that the uranium leaching rate could be reached 70%,when the pressure was 2.0MPa and the ratio of liquid-solid was 10：1.Using the method of multistage leaching and afterwards adding oxidants enhanced leaching,the uranium leaching rate was higher...