铜钼混合精矿高效分离试验研究与应用

为提高铜钼分离效率,在小型试验和流程考查的基础上,对多宝山铜(钼)矿铜钼分离工艺进行了改进和药剂制度优化,将粗扫选流程由一次粗选、两次扫选改为两次粗选、一次扫选,捕收剂由煤油调整为煤油+废机油.工业生产表明:改造后,钼精矿钼品位、铜品位分别为45.939％、1.862％,铜精矿铜品位、钼品位分别为20.830％、0.1...

Experimental research of efficient separation of copper and molybdenum in mixed concentrates and its application

In order to improve copper and molybdenum separation efficiency,the copper and molybdenum separation process in Duobaoshan Copper(Molybdenum)Mine is renovated and the reagent regime is optimized based on small-scale test and flowsheet investigation,during which the roughing scavenging flowsheet shifts to twice roughing and once scavenging from once roughing and twice scavenging,and the collector shifts from kerosene to kerosene+used oil.Industrial production shows that after renovation molybdenum grade is 45.939%and copper grade is 1.862%in molybdenum concentrate;copper grade is 20.830%and molybdenum grade is 0.143%in copper concentrate;for copper and molybdenum separation operation,molybdenum recovery rate is increased to around 85%,and comprehensive molybdenum recovery rate exceeds 70%,about 10 percentage points higher than that(59.60%)before the renovation,living up to the idea of“recover as early as possible”for mineral processing operation;in the meantime,used oil is recovered and reused,saving mineral processing cost and increasing economic profits.