摘要
对某微细粒嵌布复杂铜铅锌多金属矿进行了详尽的工艺矿物学和选矿工艺研究。采用铜铅锌顺序优先浮选,通过新型捕收剂BK905和起泡剂BK204配合使用及添加硫酸锌、亚硫酸钠抑制铅、锌进行铜的浮选;通过添加新型锌抑制剂VA6、新型铅捕收剂BK906和乙硫氮的配合使用以达到提高铅品位和回收率的目的;该矿石中铅的嵌布粒度细,将铅粗精进行再磨,考察了不同的再磨磨矿细度条件下铅粗精矿的品位和回收率,探讨进一步提高铅精矿品位的可能性;浮铅尾矿选锌,得到合格的锌精矿。结果表明,新型捕收剂BK905和起泡剂BK204配合使用,对铜矿物浮选具有优越性,和Z-200相比,其在保证铜回收率的同时,可以减少铜粗精矿中铅、锌等矿物的含量;选铅时加入新型抑制剂VA6可以抑制铅粗精中的锌等矿物,可以进一步提高铅精矿的品质;将铅粗精矿进行再磨至-0.038 mm 92%时,铅粗精再磨精选一次后得到的铅精矿品位为29.52%,回收率为73.21%。闭路试验结果为铜精矿品位18.34%,回收率81.08%;铅精矿品位58.09%,铅回收率为83.70%;锌精矿品位51.96%,锌回收率87.89%。
The mineralogy examination and floatation process of the Cu-Pb-Zn polymetallic ore were studied.The preferential separation floatation method was adopted.The combination of zinc sulfate and sodium sulfite was added as depressant and new collector BK905+new frother BK204 were added during Cu mineral floatation step;the combination of BK906 and SN-9# was added as collector and new reagent VA6 was added as ZnS depressant during PbS floatation step.In order to further improve the Pb grade and recovery rate,the ...
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2010年第5期731-736,共6页
Chinese Journal of Rare Metals
基金
青海省科技计划资助项目(2006-G-157)
