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随着放射性矿石盐酸浸出工艺研究的开展,从常规铀水冶尾砂中选择性消除镭的研究也有了一定进展,但至今还没有人想到过在浸铀以前将镭从铀矿石中除去的问题。如果铀矿石中的含镭量能降低到相当低的水平,例如25～35微微居里/克,则用常规的硫酸浸出法就能使尾砂符合环境标准。甚至高品位的络合物铀矿石中的含镭量也能大为减少,则盐酸浸出工艺即可使尾砂达到环境容许标准。
With the development of radioactive leaching of hydrochloric acid from ore, there has been some progress in the study of selective elimination of radium from conventional uranium hydrometallurgy tailings. However, no one has yet thought of the problem of removing radium from uranium ore before leaching uranium . If the amount of uranium ore contained in the laser can be reduced to a very low level, such as 25 to 35 pico-Curie / g, the tailings can be made to environmental standards by conventional sulfuric acid leaching. Even the high-grade complex uranium ore containing the amount of laser can be greatly reduced, then hydrochloric acid leaching process tailings can reach the environmental standards.