福建某低品位钾长石矿石选矿试验  

Experimental Research on Beneficiation of a Low-grade K-feldspar Ore in Fujian

作　　者：方夕辉[1] 庄杜娟[1] 张林龙[1] 

机构地区：[1]江西理工大学资源与环境工程学院

出　　处：《金属矿山》2012年第12期50-53,61,共5页Metal Mine

摘　　要：为了给福建某低品位钾长石矿石的开发利用提供依据,对该矿石进行了选矿试验。结果表明,以硫酸为调整剂、十二胺+柴油为浮云母的捕收剂、氢氟酸和十二胺分别为浮钾长石的活化剂和捕收剂,采用强磁选除铁—脱泥—浮选除云母—钾长石与石英浮选分离工艺处理该矿石,可以获得K2O含量和回收率分别为9.84%和82.82%的钾长石精矿及SiO2含量和回收率分别为98.80%和26.07%的石英精矿,钾长石精矿达到陶瓷工业对一级品钾长石原料的质量要求,石英精矿符合玻璃工业对低档石英砂原料的质量要求。In order to provide a basis for the development and utilization of a low-grade K-feldspar ore in Fujian,,the beneficiation tests on this ore was carried out.The results showed that with sulfuric acid as modifier,dodecylamine＋diesel as collector of floating mica,hydrofluoric acid and dodecylamine as activator and collector of floating K-feldspar separately,K-feldspar concentrate with K2O content of 9.84% and recovery of 82.82% and quartz concentrate with SiO2 content of 98.80% and recovery of 26.07% were obtained through the flow-sheet of high intensity magnetic separation for iron removal-desliming-flotation for mica removal-flotation separation of K-feldspar and quartz.K-feldspar concentrate can meet the requirement of A-level K-feldspar raw materials for the ceramic industry,and quartz concentrates comes in line with the requirements of low-grade quartz sand for the glass industry.

关 键 词：钾长石 强磁选 脱泥 浮选 

分 类 号：TD973.5[矿业工程—选矿]