某氧硫混合型铜矿浮选工艺研究

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。

Experimental research on flotation process of a sulfur-oxygen mixed copper oreThe China ENFI Engineering Co., Ltd

In order to achieve efficient recovery of an oxygen-sulfur mixed copper ore, and producing qualified copper sulfide concentrates and copper oxide concentrates. The flotation tests were carried out on a mixed copper ore, combining ore properties and flotation process characteristics. Use principle flowsheet of preferential flotation of copper sulfide ore, then recovery vulcanized copper oxide by the method of flotation. The flotation conditions tests of copper sulfide and copper oxide ore were carried out respectively, and the best flotation process parameters were obtained. The results show that at a combination of butyl xanthate and Z-200 is used as a copper sulfide collector, and NaHS is used as a copper oxide sulfide and amyl xanthate as a copper oxide collector. A copper sulfide concentrate with grade of 22.72% was obtained at a recovery of 64.12% by flotation process of one rougher-two scavenging-three cleaning, and a copper oxide concentrate with grade of 25.10% was obtained at a recovery of 20.00% by flotation process of one rougher-two scavenging and one cleaning-two scavenging of rough concentrate. The test results provide powerful data support and technical reference for the development of similar type copper ore.