针对蛇纹石脉石矿物的浮选特性 ,进行了蛇纹石纯矿物、铜镍硫化矿矿石浮选试验研究 .在确定疏水絮凝为微细粒铜镍矿物浮选的重要过程的同时 ,借助OLMPUS矿物显微镜水中观测结果分析 ,推断部分脉石矿泥被有用矿物疏水絮团机械夹带一起进入精矿是精矿中MgO含量降不下去的主要原因 In view of the flotation characteristics of serpentine gangue minerals, the flotation experiments of serpentine pure minerals and copper-nickel sulfide ores have been carried out.While the hydrophobic flocculation is an important process of fine-grained copper-nickel mineral flotation, Analysis of mineral microscopic observations in the water, inferred that some of the gangue slime ore is effectively entangled with useful mineral hydrophobic flocculants into the concentrate concentrate is the main reason for the MgO content does not go down