Study on step - by - step preferential flotation of refractory oxidized copper ore and middling ore selection 某难选氧化铜矿分步优先浮选和中矿处理工艺研究
2.
Novel pb - zn separation process of pb preferential flotation with zinc depressing by potential controlled flotation for intricate pb - zn sulphide ore from huili lead - zinc mine 会理难选铅锌矿石电位调控抑锌浮铅优先浮选新工艺