【摘要】 采用胶结充填采矿法,混入矿石中的胶结充填料（水泥、砾石和细砂）严重影响硫化镍矿石的浮选,明显降低回收率。硅酸盐水泥在无限量水中的水化产物Ca（OH）₂+Fe₂O₃·aq+Al₂O₃·aq+SiO₂·aq显著降低镍黄铁矿的可浮性,Ca（OH）₂是抑制镍黄铁矿的主要成分。更多还原

【Abstract】 Cemented filling materials in ore affect greatly the flotation of nickel sulphate mineral, reducing its recovery. In an unlimited quantity of water, hydrate Ca（OH）₂+Fe₂O₃.aq+Al₂O₃.aq + SiO₂.aq of silicate cement can reduce greatly the flotability of pyrite. Among them, Ca（OH）₂ is a main component for depressing nickel-pyrite mineral.更多还原