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1973年以来,我矿采用多种选矿工艺处理粗精矿,获得高品位精矿;对于难选钨矿泥,则用碱浸—离子交换工艺处理,产出优质三氧化钨(含WO_399.95%),提高了技术经济指标。1980年与1973年比较,钨精矿品位从68.13%提高到74.05%钨一级品率从36.1%提高到100%,钨精选回收率从93.54%提高到96.90%,其中水冶回收率80.87%。水冶作业的材料消耗及成本如表1。送水冶的钨矿泥的化学成份如表2,其粒度是-200目占87～91%。
Since 1973, our mine has adopted a number of beneficiation processes for the treatment of coarse concentrates to obtain high-grade concentrates. For refractory tungsten mines, they have been treated with alkali-ion-exchange processes to produce high quality tungsten trioxide (containing WO_399.95 %), Raising the technical and economic indicators. Compared with 1973, the grade of tungsten concentrates increased from 68.13% to 74.05% in 1980 and from 36.1% to 100%, while that of tungsten concentrates increased from 93.54% to 96.90%, of which the recovery rate was 80.87 %. Material consumption and cost of hydrometallurgy are shown in Table 1. Send water metallurgical tungsten ore chemical composition shown in Table 2, the -200 mesh size is 87 to 91%.