The geological condition and the leaching process of in situ fragmentation leaching uranium in volcanic uranium deposits of Zhegan Area are analyzed The main minerals in the volcanic rock uranium deposit are calcite, fluorite, pyrite and galena The uranium is dominantly transferred in the forms of [UO 2(CO 3) 3] 4- , [UO 2(CO 3) 2] 2- and - in the liquid of hydrothermal deposit The leaching of the ores is favorable in the oxidizing ambient, the lack of the oxygen in the heap bottom can be supplied by addition of the oxidizing agents, sublevel dispersing solution with the pre buried pipe net Th...
