摘要
本文在分析常规铀水冶技术存在的问题和薄层浸出法局限性的基础上，叙述了一种新的浸出体系－浓酸熟化－高铁淋滤浸出法。该法采用硫酸高铁溶液淋滤熟化矿石，完成了薄层浸出法所不能完成的残余浸出反应。浓酸熟化－高铁淋滤浸出法对我国铀矿石具有很强的适应性，是一种可与常规搅拌浸出法相竞争的粗粒矿石提取技术。以该法为基础的铀矿加工流程将可成为我国新一代铀水冶基本流程之一。该流程省去了矿石细磨，因而从根本上克服了由矿石磨细所带来的一系列困难；同时不排放工艺流出液，可改变当前铀水冶的面貌。
On the basis of analysis of the problems present in the technology of the traditional uranium hydrometallurgy and the limitations of thin layer leaching process (TLL), a new leaching system--acid--curing and ferric sulphate--trickle leaching (AFL) process (NGJ in Chinese) has developed for extraction of uranium from the coarse ore. The ferric sulphate solution was used for trickling the acid-cured uranium ore and the residual leaching reaction incomplete in TLL process can be improved in this process. And the AFL process has a wide applicability to China's uranium ores, being in competition with the traditional agitation leaching process for treating coarse ores. The uranium ore processing technology based on the AFL process will become one of the new basic technologies of uranium hydrometallurgy.A series of difficulties will be basically overcome associated with fine grinding because of its elimination in the presented process. Moreover, the face of the present uranium hydrometallurgy can be also changed owing to without technological effluent discharge.
出处
《铀矿冶》
CAS
1994年第3期156-164,共9页
Uranium Mining and Metallurgy
关键词
高铁淋滤
铀矿物
浸出
炼铀
Uranium ore processing Concentrated acid curing Ferric sulphate-trickle Technology with zero-discharged effluent
