云南元阳华西白钨矿选矿试验研究

Experimental Research on Mineral Processing Technology for Huaxi Scheelite in Yuanyang Yunnan

针对云南元阳华西白钨矿开展了选矿试验研究,试验研究表明,采用预选脱硫—常温浮选白钨矿的工艺流程。丁黄与丁胺为脱硫混合捕收剂,当用量分别为60g/t和30g/t,硫化物的脱除率为85.78%,钨的损失率为7.66%。脱硫尾矿回收白钨矿,以Na2CO3调浆,水玻璃作抑制剂,731为捕收剂,经过一粗二扫五精流程,获得了WO371.78%,回收率81.18%的白钨精矿。

Experimental research on mineral processing technology was carried on according to the properties of Huaxi seheelite in Yuanyang Yunnan. When the technical flowsheet of pre-desulfurization--flotation of seheelite at the normal temperature was adopted and butyl xanthate and butylamine were acted as combined collectors and their dosage was 60g/t and 30g/t respectively,the removal rate of sulfide was 85.78% and the loss rate was 7.66%. To recover scheelite from the railings of desulfurization, adopting Na2CO3as pulp-mixing, sodium silicate as inhibitor and 731 as collector, through the flowsheet of one roughing--two scavenging--five cleaning flotation, the scheelite concentrate with the WO3 grade of 71.78% and the recovery of 81.18% was obtained.