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.
出处
《中国矿业》
北大核心
2004年第10期48-52,共5页
China Mining Magazine
关键词
制粒
堆浸
酸法
低渗透
泥质矿
Make-grain, Heap, Acid-method, Low-infiltration, Clay-mine
