一、绪言在硫化矿优先浮选工艺中,广泛使用廉价的石灰作为黄铁矿的抑制剂。关于氢氧离子对黄铁矿的抑制作用,一般认为与黄药离子的竞争吸附有关。Luyken 等说明了石灰对黄铁矿的抑制作用是与氢氧化钠抑制作用相同,石灰增加了氢氧离子的浓度,使黄铁矿表面生成胶状水和氧化铁(针铁矿与氢氧化铁)使表面亲水,阻止了扑收剂吸附作 I. INTRODUCTION In the preferential flotation process of sulfide ores, cheap lime is widely used as an inhibitor of pyrite. On the hydroxide ion on pyrite inhibition, generally believed that the competition with the adsorption of xanthate ions. Luyken et al. Show that the inhibition of lime on pyrite is the same as that of sodium hydroxide. Lime increases the concentration of hydroxide ions to produce gelatinous water and iron oxide on the pyrite surface (goethite and iron hydroxide ) Make the surface hydrophilic, preventing the absorption of the collector