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采用ＤＸ 低碱度抑制剂， 用ＮａＯＨ 调节ｐＨ， 在ｐＨ＝ ９ ～１０ 的范围内浮铜抑硫， 使混合精矿中的有价金属与黄铁矿分离， 再选精矿产率２０ ％ ～３０ ％ ， 尾矿含金低于３ ．０ ｇ／ｔ。在较低的压力下（ 氧压０ ．４ ～０ ．６ ＭＰａ） 对所得精矿进行氧压氨浸， 使硫转化为硫酸铵， 铜进入溶液， 金银留在浸渣中。分选中金、银、铜回收率分别为９５ ％ ，９０ ％ 和８５ ％ ； 分选条件为ｐＨ＝ ９ ．５ ， 捕收剂用量２００ ｇ／ｔ， ＤＸ 抑制剂３ｋｇ／ｔ。低压氨浸铜浸出率为９５ ％ ， 浸出压力０ ．５ ＭＰａ， 温度１２０ ℃， 时间３ ｈ ， 氨浓度４５ ｇ／Ｌ。氰化浸出金、银浸出率为９７ ％ 和９５ ％ ， 置换率９９ ％ 和９８ ％ 。金、银、铜总回收率分别为９４ ％ ，８４ ％ 和８１ ％ 。
Using DX low alkalinity inhibitor, adjusting the pH with NaOH, floating copper inhibiting sulfur in the range of pH = 9-10, separating the valuable metal in the mixed concentrate from the pyrite, and selecting the concentrate yield of 20% 30%, gold tailings less than 3. 0 g / t. The resulting concentrate was subjected to oxygen pressure ammonia leaching at a lower pressure (oxygen pressure 0 .4 to 0 .6 MPa) to convert sulfur to ammonium sulfate, copper entering the solution, and gold and silver remaining in the leachate. Sorting gold, silver, copper recovery rates were 95%, 90% and 85%; sorting conditions for the pH = 9. 5, collector dosage 200 g / t, DX inhibitor 3kg / t. Low pressure ammonia leaching copper leaching rate of 95%, leaching pressure 0. 5 MPa, temperature 120 ℃, time 3 h, ammonia concentration 45 g / L. Cyanide leaching gold, silver leaching rate of 97% and 95%, the replacement rate of 99% and 98%. The total gold, silver and copper recovery rates were 94%, 84% and 81% respectively.