The gold oxide ore from Guizhou was included in quartz, limonite, actinolite, amphibole and sericite in fine grain shape.The effect factors of gold leaching were determined by orthogonal heap leaching test.The order of these factors were grain size＞leaching time＞ addition of NaCN＞addition of lime.The index of leaching rate of 90％ could be achieved under the optimum conditions.%贵州某氧化金矿金以极微细粒形态包裹于石英、褐铁矿、阳起石、角闪石、绢云母等矿物中;本研究通过正交堆浸试验,得出影响金浸出效果的因素依次为:矿石粒度＞浸出时间＞NaCN用量＞石灰用量.按照最佳条件组合,获得金浸出率为90%以上的较佳指标.
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