某细粒浸染高硫难选铅锌矿选矿新工艺研究  

STUDY ON NEW MINERAL PROCESSING TECHNOLOGY FOR A FINELY DISSEMINATED HIGH-SULFUR REFRACTORY LEAD-ZINC ORE

作　　者：肖骏[1,2] 陈代雄[1,2] 覃文庆[1] 胡波[2] 刘锡桂[2] 

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083 [2]湖南有色金属研究院,复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室,长沙410100

出　　处：《矿冶》2014年第2期5-10,共6页Mining And Metallurgy

摘　　要：广东某特大型硫化铅锌矿床,因其特有的地质现象和选矿技术难点而闻名中外。通过系统的工艺矿物学研究查明其难选的原因,并分析总结前人已有的技术成果和有益经验,开展新工艺研究。研究采用优先浮选工艺,针对铅中矿中部分细粒方铅矿浸染于黄铁矿之间而致使传统方法无法解离的特性,创造性地引入了超细搅拌磨显著地提高了中矿解离度,有效地提高了铅回收率;同时针对该选厂传统高碱法抑制黄铁矿而引起诸多生产问题的现状,采用新型环保有机小分子抑制剂QS部分取代了石灰,并取得了更为优越的选矿指标。A large sulfide lead-zinc deposit in Guangdong Province is famous for its mineral processing technical difficulties and unique geological phenomenon.The new process technology is investigated through systematic mineralogical studies to ascertain the causes of its refractory and analyzing and summarizing the previous existing technologies and useful experience.Since some fine galena particles are disseminated within pyrite,conventional methods fail to liberate them.Aimed at this feature,selective floatation process was used in the study by creatively introducing ultrafine grinding mill,the liberation degree of the middlings being increased significantly,resulting in an effective enhancement of the lead recovery.At the same time,considering that the traditional method of high alkali inhibition on pyrite has caused many production problem,a new environmentally-friendly organic small-molecular inhibitors QS was used to partially replace lime,and a better beneficiation result has been achieved.

关 键 词：浮选 超细磨 新工艺流程 抑制剂 

分 类 号：TD923[矿业工程—选矿] TD952