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本文对用粗粒赤铁矿(-212+150微米)作为载体在油酸捕收剂系统中进行赤铁矿细粒(100％—38微米)与石英细粒(100％—75微米)的分选作了研究。并对油酸的添加量、粗粒赤铁矿的百分比、混合调整时间和氯化铁的添加量作了考察。研究发现,油酸浓度大于200克/吨及粗粒赤铁矿添加量为10％是回收细粒赤铁矿的重要条件。在较低的油酸浓度下加氯化铁调整10分钟以上的条件,有助于异聚集作用的进行。在油酸浓度低于150克/吨下,氯化铁对经预先药处理的粗粒赤铁矿起着抑制作用。当浓度超过500克/吨时,氯化铁明显地影响细粒赤铁矿背负浮选的效果。背负浮选对油酸添加量、细粒物料和粗粒物料的比例、调整时间和无机电解液存在等的变化都很敏感,显然,它只能在稳定的浮选条件下应用。
In this paper, the effects of hematite (100% -38 μm) and quartz (100% -75 μm) on hematite collector system using coarse hematite (-212 + 150 μm) Sorted for research. The amount of oleic acid, the percentage of coarse hematite, the mixing time and the amount of ferric chloride were also investigated. The study found that oleic acid concentration greater than 200 g / t and coarse hematite addition of 10% is an important condition for the recovery of fine hematite. Adjustment of the ferric chloride at lower oleic acid concentrations for more than 10 minutes helps to favor the effect of heterogluses. Ferric chloride inhibits the pre-treatment of coarse hematite at oleic acid concentrations below 150 g / t. Ferric chloride significantly affects the flotation of fine-grained hematite at concentrations above 500 g / t. Carrying flotation on the oleic acid addition, the proportion of fine and coarse materials, adjust the time and the presence of inorganic electrolytes and other changes are sensitive, it is clear that it can only be applied in the stable flotation conditions.