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通常从矿石或精矿中回收铀主要采用硫酸浸出法,浸出温度大约在25℃至100℃,然后进行离子交换、淋洗或萃取、反萃取,最后沉淀铀氧化物和硫酸盐的混合物。对于那些耗酸量大的矿石,也常用碳酸钠-碳酸氢钠溶液或碳酸铵-碳酸氢铵溶液浸出。在酸浸和碱浸两种情况下,均可加氧化剂使铀完全氧化成更易溶解的正六价状态。酸浸可用 NaClO_3、O_2或
Uranium is usually recovered from ores or concentrates by the sulfuric acid leaching process, with leaching temperatures ranging from 25 ° C to 100 ° C, followed by ion exchange, rinsing or extraction, back extraction and finally the precipitation of a mixture of uranium oxide and sulphate. For those who consume large amounts of acid ore, sodium carbonate - sodium bicarbonate solution or ammonium carbonate - ammonium bicarbonate solution leaching. In acid leaching and alkali leaching two cases, can add oxidant uranium can be completely oxidized into more soluble hexavalent state. Acid leaching available NaClO_3, O_2 or