红透山选矿工艺的进展

THE PROGRESS OF FLOTATION TECHNOLOGY IN HONGTOUSHAN COPPER MINE

用阶段磨矿部分混合浮选处理铜锌硫多金属硫化矿石，铜锌分离效果差，锌回收率低。两段磨矿，铜锌硫顺序优先浮选，辅以铜中矿再磨，锌精尾脱硫，锌尾浓缩选硫等技术措施，实现了无抑制剂铜锌分离，使锌回收率大幅度提高。如果进一步加强细磨，混合应用捕收剂，技术经济指标还会有新的突破。

] Processing polymetallic sulfide ores bearing Cu , Zn and S by a stage grinding partial bulk flotation flowsheet results in poor separation of copper from zinc and low zinc recovery. A series of technological measures such as two - stage grinding, Cu - Zn - S selectitve flotation in order, assisted with regrinding of middlings, desulphurization of tailings from zinc cleaning,and Zn tailings thickening followed by S flotation, can lead to Cu - Zn separation from each other without depressant and great increase of zinc recovery.The technical-economical index will make a new breakthrough when regrinding further and adding collectors into bulk flotation process.