某复杂铜硫矿石优先浮选工艺试验研究

对某铜硫硫化矿石进行详细的工艺矿物学研究，针对该矿石特点，采用“优先选铜—活化选硫”原则流程，试验对比了以丁基黄药和酯-105为铜捕收剂的选别效果，结果表明:与前者相比，以酯-105作铜捕收剂，可减少选铜阶段的石灰用量，且在选硫阶段可用新型活化剂代替硫酸，从而实现低碱优先选铜，新型活化剂活化选硫，实验室闭路试验结果表明，该工艺可获得铜品位为18.93 %，铜回收率为94.31 %的铜精矿；硫品位为33.46 %，硫回收率为55.39 %的硫精矿. 

Preferential flotation process of a complicated copper sulfide ore

Detailed study of process mineralogy was carried out on a copper sulphide ore to compare the dif-ferent effect of using butyl xanthate and ester-105 as collector by adopting the process of Cu-preference flota-tion according to the characteristic of the ore. The results show that using the ester-105 as the collector can save lime dosage in the Cu-flotation stage, and the preferential flotation of Cu can be realized by replacing the vitriol with new activator in the S-flotation stage. The closed circuit test shows the copper grade of the concen-trate obtained through the technology is 18.93 % with recovery of 94.31 %, and the sulfide grade of the con-centrate obtained is 33.46%with recovery of 55.39%.