Experimental results demonstrate that direet cyanide leaching has yielded gold recovery of 12.46% whereas cyanide leaching o bil-oxidizing residues if the Fe oxidizing ratio is 67.02%, has resulted in gold recovery of 86.86%.

• 试验结果表明:细菌氧化该矿；如果铁的氧化率达到67.；02%25；则氰化浸出生物氧化滤渣的金浸出率为86