组合捕收剂从含钙矿物浮选体系中回收微细粒白钨矿研究

本文针对白钨矿一般与萤石、方解石和磷灰石等含钙盐类矿物共生,它们之间表面性质相似、溶解组分作用复杂以及存在矿物表面的相互转化现象,导致白钨矿与含钙盐类脉石矿物分离难的问题,利用捕收剂混合使用时药剂之间产生的协同效应,分别考察组合捕收剂对含钙矿物的单矿物浮选行为,揭示含钙矿物浮选体系中三种含钙矿物可浮性的差异规律,用于指导含钙矿物浮选分离。对栾川某尾矿中WO3含量为0.21%的实际矿石,采用水玻璃作抑制剂、GYR与水杨醛肟为组合捕收剂,进行白钨常温浮选工艺流程试验,获得了钨品位WO3 62.34%、回收率73.78%的浮选指标,白钨矿与方解石、萤石得到了较好的分离,实现了尾矿中微细粒级白钨矿较好的回收利用,为微细粒白钨矿物的高效回收提供了一条新的技术路径。

Fine-scheelite selective-recovery from Ca-containing mineral systems using Combination-collector

In this paper, scheelite general and fluorite, calcite and apatite mineral salts such as calcium symbiosis between them similar surface properties, and the presence of dissolved components of the complex role of mineral surface phenomena into each other, resulting in scheelite containing gangue minerals calcium class separation difficult problem, when the use of the synergies collectors mix produced between agents, were investigated collector combination of single calcium mineral flotation behavior, revealing with three calcium mineral floating of the law can be differences in calcium mineral flotation system, used to guide calcium mineral flotation separation. On a tailings luanchuan 0.21% WO3 actual content of ore, using water glass as inhibitors, GYR combination with salicylaldoxime collector, carried out at room temperature scheelite flotation process test, won the tungsten grade WO3 62.34% , 73.78% of the flotation recoveries, scheelite and calcite, fluorite get better separation to achieve the tailings - fine scheelite better recycling of micro-fine mineral scheelite efficient recycling offers a new technical.