七六五矿多泥质低渗透性铀矿石酸法制粒堆浸室内试验分析  

INDOOR TESTING STUDY FOR URANIUM ORE WITH MUCH CLAY AND LOW INFRILTRATION IN 765 MINE BY ACID-METHED MABING-GRAIN HEAP

作　　者：梁建龙[1] 刘乃忠[2] 刘惠娟[3] 史文革[1] 胡凯光[1] 

机构地区：[1]南华大学建筑工程与环境资源学院,衡阳421001 [2]核工业北京化工冶金研究院,北京101149 [3]南华大学数理学院,衡阳421001

出　　处：《中国矿业》2004年第10期48-52,共5页China Mining Magazine

摘　　要：对于含泥质较多,低渗透性适宜酸浸矿石,可通过制粒的方法来改善其渗透性。选择能耐酸的制粒粘合剂是其关键所在。通过几种粘合剂对比,选择了一种天然的高分子化合物,确定了粘合剂用量,制粒原矿的最佳粒度、固化时间、改善了其渗透性,完全满足了浸出要求。同时还进行了槽浸、柱浸效果的比较。在室内制粒后柱浸浸出率93％,通过串柱浸出,节约硫酸55％。(与直接渗流漫出相比)For the fitting acid-leading ores with much clay and low infiltration, its infiltration can be improved by the method of making grain. It is key to choose a kind of endured-acid making-grain binder. Compared with several binders, a kind of crude macromolecule compound is chosen. And the use amount of the binder, the most appropriate dimension of original ore and the solidifying time are determined. The infiltration of the ore is thus improved and demand for heap-leading if completed met. In the meantime, the effect for trough-leaching and column-leaching is also compared, which displays that the column leaching rate arrives at 93% after the indoor making grains and by the clustered column leaching, about 55% sulfuric acid is saved, compared of direct infiltrating leaching.

关 键 词：制粒 堆浸 酸法 低渗透 泥质矿 

分 类 号：TD868[矿业工程—金属矿开采]