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由于选矿产品中的砷在冶炼过程中将造成环境污染,影响冶炼和制酸工艺的产品质量,因此对选矿产品含砷量的要求越来越严格,对于铜精矿含砷要求在0.3%(甚至0.2%)以下,致使一些矿石中含有砷矿物的铜矿山,精矿含砷量高于冶炼要求(有的高达2%以上),造成产品销路滞塞,不能正常生产,甚至被迫停产。本研究就是为了寻求合适的药剂制度和合理的工艺流程,使毒砂与黄铜矿有效分离,以选出合于冶炼要求的铜精矿。毒砂(FeAsS)是分布较广的砷矿物。它常是铜、铅、锌等有色金属矿石浮选过程中的有害矿物;它的可浮性较好,与黄铁矿很近似,因此在进行铜浮选的条件下,如果没有强有力的抑制措施,就以杂质混入精矿
As arsenic in mineral processing products in the smelting process will cause environmental pollution, affecting the quality of smelting and acid production process, so the dressing of arsenic content requirements more stringent requirements for copper concentrate containing arsenic 0.3% ( Even 0.2%), resulting in some mines containing arsenic minerals in copper mines, concentrates containing arsenic higher than the smelting requirements (some as high as 2% or more), resulting in product sales congestion, can not be normal production, and even forced to stop production . The purpose of this study is to find a suitable pharmaceutical system and a reasonable process so that arsenopyrite and chalcopyrite can be effectively separated to select the copper concentrate suitable for smelting. Arsenopyrite (FeAsS) is a widely distributed arsenic mineral. It is often harmful minerals such as copper, lead, zinc and other nonferrous metal flotation process; its flotability is good, and pyrite is very similar, so under the conditions of copper flotation, if there is no strong Suppression measures, mixed with impurities on the concentrate