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某铁矿为一典型含铀铁矿岩矿床,矿石中铀和铁均达到工业品位(U0.10％,Fe>50％),铀铁共生关系密切。 在通常的高炉炼铁条件下,铀与铁能达到良好分离,铀几乎完全转入炉渣。但从炉渣中尚不能经济而有效地回收铀。从铁矿原矿中提取铀受矿石岩性和铀的赋存状态的影响。含铀褐铁矿样经焙烧后用常规酸浸出法处理,铀浸出率可提高15.6～60％。高温焙烧过程加入Na_2CO_3或V_2O_5,铀的浸出率可以达到90％以上。 根据该含铀铁矿的特性,作者在结论中提出了先提铀后炼铁的综合利用原则流程。
An iron ore deposit is a typical uranium-bearing iron ore deposit. Both uranium and iron in the ore have reached the industrial grade (U0.10%, Fe> 50%), and the uranium-iron symbiosis is closely related. Under the usual blast furnace conditions, uranium and iron are well separated and uranium is almost completely transferred to the slag. However, recovery of uranium from slags can not be economically and effectively carried out yet. Extraction of Uranium from Iron Ore Minerals Influenced by Ore Lithology and Uranium Occurrence. Uranium-containing limonite samples after roasting with conventional acid leaching method, uranium leaching rate can be increased 15.6 ~ 60%. Adding Na_2CO_3 or V_2O_5 during high temperature roasting process, the leaching rate of uranium can reach more than 90%. According to the characteristics of the uranium-bearing iron ore, the author put forward in the conclusion the first principle of comprehensive utilization of iron making uranium after the process.