某氧硫混合型铜矿浮选工艺研究

Study on Flotation Process of an Oxygen-Sulfur Mixed Copper Ore

为了实现某氧硫混合型铜矿的高效回收,产出合格的硫化铜精矿和氧化铜精矿。根据矿石性质和浮选工艺特点,采用先浮选硫化铜矿物,然后在硫化条件下浮选氧化铜矿物的选矿原则流程。针对该流程,分别开展了硫化铜矿物和氧化铜矿物的浮选条件试验,获得了最佳工艺参数,并进行了浮选闭路试验。试验结果表明,以丁基黄药和Z-200的组合作为硫化铜物的捕收剂,以NaHS作为氧化铜矿物的硫化剂、戊基黄药作为氧化铜物的捕收剂,硫化铜矿物浮选采用一粗两扫两精的选别流程,氧化铜矿物浮选采用一粗两扫两精+两精扫的选别流程,可以获得Cu品位为22.72%、Cu回收率为64.12%的硫化铜精矿和Cu品位为25.15%,Cu回收率为20.00%的氧化铜精矿,研究结果为同类型的铜矿开发提供了数据支持和技术参考。

In order to realize the efficient recovery of an oxygen-sulfur mixed copper ore,qualified copper sulfide concentrate and copper oxide concentrate were produced.According to the ore properties and the characteristics of flotation process,the principle flowsheet of flotation of copper sulfide minerals first and then flotation of copper oxide minerals under sulfide conditions was adopted.According to this process,the flotation condition tests of copper sulfide minerals and copper oxide minerals were carried out respectively,and the optimum process parameters were obtained,under which the flotation closed-circuit test was carried out.The test results show that with the combination of butyl xanthate and Z-200 as the collector of copper sulfide,NaHS as the vulcanizer of copper oxide minerals and amyl xanthate as the collector of copper oxide minerals,the flotation flowsheet of one rougher-two scavengers-two cleaners is adopted for copper sulfide minerals,and the flotation flowsheet of one rougher-two scavengers-two cleaners and two cleaners and scavengers is adopted for copper oxide minerals.Copper sulfide concentrate with Cu grade of 22.72%and Cu recovery of 64.12%and copper oxide concentrate with Cu grade of 25.15%and Cu recovery of 20.00%can be obtained.Research results provide data support and technical reference for the development of the same type of copper mine.