高钙白钨粗精矿加温精选捕收剂优化研究  

Optimization of Collectors for Heated Concentration of High-calcium Scheelite Rough Concentrat

作　　者：杨长安 廖德进 李春娜 郭江旭 谭孝飞 曾海涛 YANG Chang’an;LIAO Dejin;LI Chunna;GUO Jiangxu;TAN Xiaofei;ZENG Haitao(China Tungsten Shared Services(Hunan)Co.,Ltd.,Chenzhou 432000,Hunan,China;China Tungsten High tech Materials Co.,Ltd.,Zhuzhou 412000,Hunan,China;Hunan Yaogangxian Mining Co.,Ltd.,Chenzhou 432000,Hunan,China)

机构地区：[1]中钨共享服务(湖南)有限公司,湖南郴州432000 [2]中钨高新材料股份有限公司,湖南株洲412000 [3]湖南瑶岗仙矿业有限责任公司,湖南郴州432000

出　　处：《中国钨业》2024年第5期15-18,76,共5页China Tungsten Industry

摘　　要：湖南某白钨浮选粗精矿采用经典的“彼德洛夫法”进行加温精选,原工艺采用单一氧化石蜡皂作为捕收剂,经常出现浮选泡沫不稳定从而造成钨金属损失的问题。为此,本研究开展了系统的工艺技术研究,通过采用氧化石蜡皂与油酸组合作为加温精选捕收剂,同时优化加温精选系列参数,在钨粗精矿WO_(3)品位为8.47%、CaCO_(3)品位为65.31%、CaF_(2)品位为9.64%的情况下,经过一粗三精一扫全流程闭路试验,获得了WO_(3)品位为62.74%、回收率为97.13%的钨精矿。实现了高钙条件下白钨矿的选矿指标优化,为同类型钨矿浮选分离处理提供借鉴。This study addresses the challenges encountered in the conventional Petrov process for temperature-controlled cleaning of a scheelite flotation bulk concentrate from a Hunan tungsten operation,where the sole use of oxidized paraffin soap as collector frequently led to unstable flotation froth and consequent tungsten metal losses.Systematic process optimization was conducted by employing a combined collector system of oxidized paraffin soap and oleic acid,coupled with parameter refinement in the thermal beneficiation stage.Starting with a feed material containing 8.47%WO_(3),65.31%CaCO_(3),and 9.64%CaF_(2),the optimized process achieved exceptional performance through a closed-circuit flowsheet comprising one roughing,three cleaning,and one scavenging stage.The final tungsten concentrate attained a WO_(3)grade of 62.74%with a remarkable recovery rate of 97.13%.Optimization of beneficiation indicators for scheelite under high calcium conditions has been achieved,providing reference for flotation separation of similar tungsten ores.

关 键 词：彼德洛夫法 氧化石蜡皂 油酸 加温精选 

分 类 号：TD923[矿业工程—选矿] TD952