国外铀资源的勘探、勘察设计、工程建设的投资与管理；勘察设计、工程建设；相关技术的开发、技术中介服务；进出口业务；对外工程承包。（企业依法自主选择经营项目，开展经营活动；依法须经批准的项目，经相关部门批准后依批准的内容开展经营活动；不得从事本市产业政策禁止和限制类项目的经营活动。）
In order to recover uranium from uranium-beryllium flotation tailings and reduce the content of beryllium in uranium products,the occurrence state of uranium and beryllium in uranium-beryllium flotation tailings was analyzed by process mineralogy,and uranium was leached by sulfuric acid leaching process.The effects of acid concentration,leaching time,leaching temperature and liquid-solid ratio on the leaching rate of uranium and beryllium were investigated,and the feasibility of recovering uranium from leaching solution was studied by anion exchange resin.The results show that the uranium in the uranium-beryllium flotation tailings is more easily leached by sulfuric acid,but the beryllium is not easily leached,the uranium can be recovered and the uranium-beryllium can be separated by ion exchange method.
