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为了解决铜矿石浸出速度慢、浸出率低的问题,在浸出液中加入表面活性剂进行摇瓶试验.通过测量浸出前后溶液表面张力以及铜浸出率,考察了三种不同类型的表面活性剂对铜矿石浸出的影响.研究发现溶液表面张力对矿石浸出影响较大,阴离子表面活性剂的强化浸出作用最为明显,铜浸出率达62.5%.在柱浸试验中,添加阴离子表面活性剂使铜浸出率提高了近10%.利用物理化学和渗流力学对表面活性剂强化浸出机理的分析表明,溶液表面张力和表面活性剂在矿石表面的吸附对矿石表面润湿作用影响较大,表面活性剂在浸出液的持久性也是影响浸出的因素之一.
In order to solve the problem of slow leaching rate of copper ore and low leaching rate, surfactant was added to the leaching solution for shake flask test.Through measuring the surface tension of the solution before and after leaching and the copper leaching rate, three different types of surfactant pairs Copper ore leaching.The study found that the surface tension of the solution has a significant impact on the leaching of ore, the most obvious enhancement of anionic surfactant leaching, copper leaching rate of 62.5% in the column immersion test, adding anionic surfactant copper Leaching rate increased by nearly 10% .Physics and mechanics and percolation mechanics of surfactant leaching mechanism analysis showed that the solution surface tension and surfactant adsorption on the ore surface of the ore surface wetting greater impact on the surface of the surfactant The durability of the leachate is also one of the factors that affect leaching.