广东惠东某含铜白钨矿石浮选试验
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摘要
广东惠东某含铜白钨矿石WO_3品位1.25%,铜品位0.15%,95.09%的钨以白钨矿的形式存在,硫化铜中的铜占总铜的95.14%。为给该矿石的开发利用提供技术支持,按铜硫混合浮选—白钨浮选原则流程进行条件试验。结果表明,原矿磨矿至-0.074 mm 68%进行1粗2精1扫铜硫混合闭路浮选,可获得铜品位5.13%、回收率93.79%的铜硫混合精矿;以碳酸钠为调整剂、水玻璃为抑制剂、ZL为捕收剂对硫化矿混合浮选尾矿进行1粗2精3扫白钨浮选—精矿1粗2精1扫加温浮选,可得到WO_3品位68.86%、回收率91.58%的白钨精矿,实现铜硫的富集和白钨矿的有效回收,可为该矿石中铜、硫、钨的回收利用提供参考,但仍需进行铜硫混合精矿的分离研究。
The grade of WO_3 is 0. 125% and Cu is 0. 15% in a Scheelite Containing Copper in Huidong,Guangdong province. 95. 09% of tungsten exists in the form of scheelite,the copper in the copper sulphide accounts 95. 14% of the total copper. In order to provide technical supports for the exploitation and utilization of the ore,condition experiments on the principle process of copper-sulphur bulk flotation-scheelite flotation were conducted. The results showed that at the grinding fineness of-0. 074 mm 68%,via one rough-two cleaning-one scavenging copper-sulphur bulk closed flotation,the copper-sulphur bulk concentrate with Cu grade of 5. 13%,recovery rate of 93. 79% was obtained. Using sodium carbonate as pH regulator,water glass as inhibitor,ZL as collector,bulk flotation tailings one rough-two cleaningthree scavenging scheelite flotation-concentrate one rough-two cleaning-one scavenging heating flotation could obtain the scheelite concentrate with WO_3 grade of 68. 86% and recovery rate of 91. 58 %. The enrichment of copper,sulphur and the effective recovery of scheelite were realized,which could provide references for the recovery and utilization of copper,sulphur and tungsten,but the separation of copper-sulphur bulk concentrate still needs to be researched.
The grade of WO_3 is 0. 125% and Cu is 0. 15% in a Scheelite Containing Copper in Huidong,Guangdong province. 95. 09% of tungsten exists in the form of scheelite,the copper in the copper sulphide accounts 95. 14% of the total copper. In order to provide technical supports for the exploitation and utilization of the ore,condition experiments on the principle process of copper-sulphur bulk flotation-scheelite flotation were conducted. The results showed that at the grinding fineness of-0. 074 mm 68%,via one rough-two cleaning-one scavenging copper-sulphur bulk closed flotation,the copper-sulphur bulk concentrate with Cu grade of 5. 13%,recovery rate of 93. 79% was obtained. Using sodium carbonate as pH regulator,water glass as inhibitor,ZL as collector,bulk flotation tailings one rough-two cleaningthree scavenging scheelite flotation-concentrate one rough-two cleaning-one scavenging heating flotation could obtain the scheelite concentrate with WO_3 grade of 68. 86% and recovery rate of 91. 58 %. The enrichment of copper,sulphur and the effective recovery of scheelite were realized,which could provide references for the recovery and utilization of copper,sulphur and tungsten,but the separation of copper-sulphur bulk concentrate still needs to be researched.
引文
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[5]张英,胡岳华,王毓华,等.硅酸钠对含钙矿物浮选行为的影响及作用机理[J].中国有色金属学报,2014(9):2366-2372.
[2]艾光华,邬海滨,李继福,等.湖南某白钨矿选矿试验研究[J].有色金属工程,2017(3):55-59.
[3]江庆梅,戴子林.混合脂肪酸在白钨矿与萤石、方解石分离中的作用[J].矿冶工程,2012,32(2):42-44.
[4]杨帆,杨耀辉,刘红尾,等.新型季铵盐捕收剂对白钨矿和方解石的常温浮选分离[J].中国有色金属学报,2012,22(5):1448-1454.
[5]张英,胡岳华,王毓华,等.硅酸钠对含钙矿物浮选行为的影响及作用机理[J].中国有色金属学报,2014(9):2366-2372.