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目前,堆浸法提金工艺已经在我国的一些黄金矿山,尤其是小型的民采矿山得到了广泛的应用.生产实践证明:这种提金工艺简单易行,投资少,成本低,见效快,已被人们公认是一种处理低品位含金氧化矿石行之有效的方法.然而,在实际生产中,由于矿石中矿泥及粘土质含量高,影响矿堆的渗透性,阻碍浸出液均匀地通过矿难以致造成沟流和偏析现象,使得金的浸出率下降,也降低了堆浸的经济效益.河南省某金矿在进行堆浸半工业试验的过程中就遇到了困难,为解决这一实际问题,结合矿山生产,进行了制粒-堆浸法提金试验,取得了较好的浸出效果并为矿山将来的实际应用提供了可靠的依据.
At present, heap leaching method gold extraction process has been widely used in some gold mines in our country, especially in small mining mines.Production practice has proved that this gold extraction process is simple and easy with low investment, low cost and quick response , Has been widely recognized as an effective method to deal with low-grade gold-bearing oxide ore.However, in actual production, due to the high content of slime and clay in the ore, it affects the permeability of the ore pile and hinder the leaching solution evenly Due to the difficulties in channeling and segregation caused by the mine, the leaching rate of gold is reduced and the economic benefits of heap leaching are also reduced. A gold mine in Henan Province encountered difficulties in semi-industrial tests of heap leaching. To solve this problem Practical problems, combined with mine production, granulation - heap leaching method of gold extraction, and achieved good leaching effect and mine for the practical application of the future provided a reliable basis.