为了综合回收四川省独狼沟金矿浮选尾矿中的有价矿物，根据尾矿中自然金与载金矿物（黄铁矿）、白钨矿的密度差异，在不磨矿的情况下，开展了重选试验设备及流程选择、金钨分离浮选试验和重选尾矿回收石英砂的选矿试验。经过对比分析，最终采用“重选（尼尔森+摇床）—浮选（金钨分离）—磁选”联合工艺流程，获得了金品位为107.00×10^-6、金回收率为2.34%的金精矿，WO₃品位为52.95%、WO₃回收率为47.23%的钨精矿，以及SiO₂品位为96.32%、SiO₂回收率为72.68%的石英精矿，且石英精矿达到了铸造型石英砂2S等级。该尾矿选矿工艺流程具有成本低、易于现场操作以及对环境友好等优点。

The flotation tailings came from Dulanggou gold mine in Sichuan Province，with the particle size of -0.074 mm 27%.The results of chemical analysis show that the grade of Au，WO₃ and SiO₂ is 0.42×10^-6， 0.039%，and 94.01% respectively.The main valuable metal minerals are natural gold，scheelite and pyrite，and the gangue minerals are mainly quartz，mica and feldspar，which belong to the tailings that can be recycled. In order to comprehensively recover the valuable minerals in the flotation tailings of Dulanggou gold mine，according to the density difference between natural gold and gold-bearing minerals（pyrite） and scheelite in the tailings，without grinding，the gravity separation test equipment and process selection，gold-tungsten separation flotation test and beneficiation test of quartz sand recovery from gravity tailings were carried out.Finally，through detailed comparative analysis，the combined process of gravity separation （Nielsen+shaking table）-flotation （gold tungsten separation）-magnetic separation was adopted.The flotation process has got a better classification index.The gold concentrate Au grade is 107.00×10^-6 and Au recovery is 2.34%.Tungsten concentrate（WO₃ grade） is 52.95% and WO₃ recovery is 47.23%.Quartz sand concentrate（SiO₂ grade） is 96.32% and SiO₂ recovery is 75.68%，and the quartz sand concentrate reaches 2S level.The tailings bene-ficiation process has the advantages of low cost，easy on-site operation and environmental protection.