布朗斯威克矿山公司研究了用氮气在微型浮选槽(5升)连续回路中从铜铅尾矿中浮选黄铁矿的新工艺。这种微型浮选槽是诺兰达工艺中心设计的。起先用氮气而不加捕收剂进行黄铁矿浮选。结果表明,铁的回收率只有3%,精矿铁品位为33%。当使用少量黄原酸盐捕收剂时,达到了良好的黄铁矿优先浮选效果,获得了铁品位39%的精矿,回 Bronswick Mining has investigated a new process for flotation of pyrite from copper-lead tailings in a continuous flotation cell (5 liters) of nitrogen in nitrogen. This miniature flotation cell is designed by Nolanda Technology Center. Initially flotation of pyrite with nitrogen gas without any collector. The results show that the iron recovery rate of only 3%, concentrate grade of 33%. When a small amount of xanthate collector is used, a good flotation effect of pyrite is achieved, a concentrate of 39% iron grade is obtained, back