某复杂多金属钨矿工艺矿物学研究

Process Mineralogy of a Refractory Poly-metallic Tungsten Ore

为了给选矿试验确定回收的目标矿物和合理的试验方案,通过多元素分析、物相、显微镜观察、筛析、重液分离等手段,对某钨矿进行工艺矿物学研究。研究结果表明样品中可供回收的元素为钨,主要钨矿物为白钨矿,占原矿钨金属量的61.28%,次为黑钨矿,占原矿钨金属量的38.72%。钨矿物属粗细不均匀嵌布,单体解离度黑钨矿比白钨矿更低。钨矿物主要与脉石矿物(黑云母、石英、长石等)、含铁矿物、含铜矿物有密切共生组合关系。白钨矿在矿石中嵌布粒度较黑钨矿粗,且与之连生的矿物在破碎过程易于和白钨矿发生分离。

To determine the target recovery minerals and efficient plan for mineral processing test,this paper studied the process mineralogy characteristics of a tungsten ore by the methods of multi -element analysis, phase, microscopic observation, sieving and heavy liquid separation. The sample results showed that tungsten is the major recycled element, including scheelite （61.28 % in the rude ore） and wolframite （38.72 % in the rude ore）. The size of tungsten ore is unevenly distributed. The monomer dissociation degree of wolframite is lower than that of scheelite. Tungsten ore is in close symbiotic combination with gangue （ biotite, quartz, feldspar, etc.）, iron and copper. The embedded grain size of scheelite is larger than that of wolframite.