广东某低品位白钨矿选矿试验研究  

Experimental research on beneficiation of a low-grade scheelite in Guangdong

作　　者：罗仙平[1,2] 李宇宏[1] 周贺鹏[1] 高莉[1] 王兆元[1,3] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000 [3]赣州金环磁选设备有限公司,江西赣州341000

出　　处：《中国矿业》2014年第7期118-122,132,共6页China Mining Magazine

基　　金：国家科技支撑计划课题资助(编号:2012BAC11B07);"赣鄱英才555工程"领军人才培养计划;江西省教育厅科技计划项目资助(编号:GJJ11005)

摘　　要：广东某矽卡岩型钨多金属矿矿物组成复杂,钨品位低,含钙脉石矿物多。针对该矿石特点,采用"优先硫化矿-常温粗选-加温精选"工艺,即钨粗选采用(731+油酸)作捕收剂,加温精选采用水玻璃和硫化钠作抑制剂。试验结果表明,在原矿含钨0.15%情况下,采用此工艺可获得含钨60.35%、钨回收率66.33%的钨精矿,与现场原工艺相比,钨品位提高了7.25个百分点,回收率提高了7.23个百分点。A skarn-type Scheelite polymetallic ore from Guangdong is low grade and complex in composition.There are amout of calcium gangue minerals in the ore.In light of the properties of the ore,a beneficiation process of＂preferential flotation of sulfide minerals–roughing in normal temperature-cleaner in high temperature＂was applied to beneficiate the ore.In the beneficiation process,731 combined oleic acid were used as collector,sodium silicate and sodium sulfide wereused as depressant in high temperature cleaner.The test results shows：By using this beneficiation process,a tungsten concentrate,whose tungsten grade is 60.35% and recovery rate is 66.33%,can be obtain from the raw ores with the wolfram grade grade of 0.15%.Comparing to the former beneficiation process,the tungsten grade and the recovery of the tungsten tungsten concentrate increased by 7.25% and 7.23%respectively.

关 键 词：白钨矿 加温精选 抑制剂 浮选 

分 类 号：TD952[矿业工程—选矿]