501矿床铀矿石室内浸铀试验地质工艺研究  

Research of Geological Technologic Condition in Laboratory About the Ore of 501 Deposits

作　　者：马国祥[1] 禹宝利[1] 高玉友[1] 李长华[1] 

机构地区：[1]核工业243大队,内蒙古赤峰024006

出　　处：《东华理工大学学报（自然科学版）》2009年第1期1-8,共8页Journal of East China University of Technology(Natural Science)

摘　　要：501矿床矿石铀品位0.052%,U+6/U+4比值1.7～4.6,对浸铀地质工艺有害的碳酸盐、硫化物和有机质含量很少,矿层水中铀和溶解氧含量较高,[HCO3]-量低。通过静态浸出试验确定的技术参数为:用7.91g/LH2SO4,对0.007%～0.216%品位铀矿石浸泡48h,铀的浸出率为64.69%～99.17%,浸出液中铀浓度为9.51～427.6mg/L。通过渗滤浸出试验筛选出较好的溶浸剂配方为:6～8g/LH2SO4,铀的浸出率为95.71%～96.33%,浸出液中铀浓度为88.33～111.32mg/L,浸出液固比为4.46～5.66,吨矿硫酸耗量为27.58～29.83kg/t,提取1kg铀的硫酸耗量为55.17～60.06kg。说明该矿床矿石宜用酸法浸出,浸出铀的地质工艺条件较好。501 deposits of uranium ore grade is 0.052%. The radio of U^＋6/U^4＋ is 1.7 -4.6. There is less content of sarbonate, such as sulfide and organic matter which disservice baptist uranium geological process,and the uranium and oxygen with a high level in the water of seam. The content of [ HCO3 ]^- is lower. By conducting the static leaching test, the important technical parameters of uranium ore extraction are determined ： with 7.91 g/L H2SO4, to soak uranium ore which the grade is between 0. 007% and 0. 216% for 48 hours, the uranium extraction rate of 64.69 -99.17% , and extract uranium concentration in 9.51 -427.6 mg/L; the formula of infusion solution is obtained by using percolation leaching test： 6 - 8 g/L H2SO4, the rate of uranium extraction is 95.71% -96.33% , an average of leaching solution uranium concentration of 88.33 -111.32 mg/L, leaching liquid-solid ratio of 4.46 - 5.66, ore tons of sulfuric acid consumption to 27.58 - 29.83 kg/t, extraction of uranium 1 kg of sulfuric acid consumption to 55.17 - 60.06 kg. That indicate the geological technologic conditions which the leaching of uranium ore deposits is better.

关 键 词：静态浸出 渗滤浸出 技术经济指标 地质工艺条件 

分 类 号：P624.4[天文地球—地质矿产勘探]