难选白钨矿选矿新工艺的研究  

Study on a new technology of processing refractory scheelite

作　　者：张忠汉[1] 张先华[1] 林日孝[1] 周晓彤[1] 叶志平[1] 李英霞[1] 

机构地区：[1]广州有色金属研究院选矿研究所,广东广州510651

出　　处：《广东有色金属学报》2000年第2期84-87,共4页Journal of Guangdong Non-Ferrous Metals

摘　　要：依据白钨矿矿石性质 ,采用一次磨细的单一浮选流程 ,在 Na2 CO3碱性介质中用改性 Na2 Si O3和改性脂肪酸进行白钨矿粗选 ,采用水玻璃 +YN进行白钨加温精选 .小型试验和工业试验均获得良好的指标 .在原矿含 WO31.4 5%的工业试验中 ,获得白钨精矿品位 68.19%,回收率 82 .16%.On the basis of study on the ore property of scheelite, a single flotation flowsheet with fine grinding at one stage is adopted, the roughing of scheelite is carried out with a modified Na\-2SiO\-3 and modified fatty acid in an alkaline (Na\-2CO\-3) medium, the scheelite rougher concentrate is then cleaned with an agent, YN and water glass at elevated temperature. Good results have been achieved in both lab test and commercial test. A commercial test on a raw ore containing 1\^45% of WO\-3 resulted in a scheelite concentrate with the grade of 68\^19% and the recovery of 82\^16%.

关 键 词：白钨矿 浮选 水玻璃 脂肪酸 选矿 

分 类 号：TD954.3[矿业工程—选矿] TD923