高砷高硫金矿石或金精矿氰化浸金工艺

The cyanide leaching of high-arsenic and high sulphur gold concentrate

在氰化过程中 ,通过加入活化剂SMD后 ,使处理矿样中含砷 (1%～ 5 % )、硫 (2 0 %～30 % )不干扰金的浸出。可使金的浸出率从 30 %～ 6 0 %提高至 92 %～ 98% ,浸出速度也大大提高 。

The high arsenic and sulphur gold concentrate are refracting, since they contain arsenic 1%～5% and sulphur 20%～30%,The gold leaching rate by cyanide was as low as 30%～60%.Adding activating agent SMD,the gold leaching rate improved as high as from 92% to 98%.The leaching velocity is also rasied greatly.