某砂岩型铀矿床现场地浸采铀地质工艺试验

A geological technological field test for in-situ leaching uranium of a sandstone type uranium deposit

按5点型布置施工试验钻孔,对某砂岩型铀矿床开展地浸采铀地质、水文地质条件研究和试验。依据矿样室内浸出试验结果,进行现场酸法地浸采铀试验。浸出时间为93d,浸出液峰值铀质量浓度为62.16mg/L,浸出率为45.56%。地质工艺试验结果初步表明,该铀矿床采用酸法地浸工艺是可行的。

By means of a group geological holes（5-spot pattern）, a geological and hydrogeological con- dition test was carried out for in-situ leaching uranium of a sandstone type uranium deposit. According to the results of laboratory leaching test, acid push-pull test was carried out in the field. Leaching time was 93 days, the peak uranium concentration in the lixivium was 62.16 mg/L, and leaching rate was 45.56%. Test results show that the deposit is suitable for acid in-situ leaching.