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本文介绍了越南农松盆地砂岩铀矿石中铀的浸出实验及结果。静态浸出的结果表明,浸出效率在很大程度上取决于矿石的风化程度和粒度。为了回收重铀酸镁形式的铀,处理了农松地区的砂岩铀矿石。根据风化程度和相应化学成分的不同(表1),将这些矿石划分为3种类型。在温度和时间均不相同的条件下(表2),与盐酸起反应的碳酸钙的量(g CaCO3/100 g矿石)显示,搅拌方法耗酸量高。
In this paper, the leaching experiments and results of uranium in sandstone uranium ore from Nongsong basin in Vietnam are introduced. Static leaching results show that the leaching efficiency depends largely on the degree of weathering and particle size of the ore. In order to recover uranium in the form of heavy uranium magnesium, sandstone uranium ore in the Nongson area was treated. According to the degree of weathering and the corresponding chemical composition (Table 1), the ore is divided into three types. The amount of calcium carbonate reacted with hydrochloric acid (g CaCO3 / 100 g ore) shows that the stirring method consumes a high amount of acid, both under different conditions of temperature and time (Table 2).