摘要
云南某低品位钨矿中WO3主要赋存于黑钨矿,杂质矿物以石英为主,少量硫化矿物和磁性铁矿物,钨矿物嵌布粒度粗细不均,属低品位难选钨矿。针对该钨矿的特点,论述了磨矿细度、药剂用量和磁场强度对该钨矿选别效果的影响,对该低品位钨矿采用了"磨矿—摇床抛废(产出部分钨精矿)—中矿再磨—浮选脱硫—磁选除铁—摇床重选"的联合工艺回收钨矿物,在原矿含WO30.31%的条件下,最终获得了含WO363.40%、WO3回收率为79.76%的钨精矿,实现了对该低品位钨矿的有效回收。
In a low-grade tungsten ore in Yunnan Province,WO3 mainly occurs in wolframite,and the impurity minerals are mainly quartz,and a small amount of sulfide minerals and magnetic iron ores.The dispersion size of tungsten minerals is not uniform.Thus,the ore belongs to low-grade refractory tungsten ore.In view of the characteristics of the tungsten ore,the influence of grinding fineness,reagent dosage and magnetic field intensity on the recovery of tungsten ore is discussed,a combined process of"grinding-discarding by table concentrator(producing part of qualified tungsten concentrate)-regrinding of middling-flotation desulfurization-magnetic separation for iron removal-shaking-gravity separation by table concentrator"was adopted to recover tungsten minerals from the low-grade tungsten ore.A tungsten concentrates with WO3 grade of 63.40%and WO3 recovery of 79.76%was finally obtained under the condition that the raw ore contained 0.31%WO3.The effective recovery of this low-grade tungsten ore was realized.
作者
邱廷省
严华山
艾光华
何发钰
盛园萍
QIU Tingsheng;YAN Huashan;AI Guanghua;HE Fayu;SHENG Yuanping(Faculty of Resource&Environmental Engineering,Jiangxi University of Science&Technology,Ganzhou 341000,Jiangxi,China;Jiangxi Key Laboratory of Mining Engineering,Ganzhou 341000,Jiangxi,China;China Minmetals Corporation,Beijing 100010,China;Dexing Copper Mine,Jiangxi Copper Corporation Limited,Shangrao 334200,Jiangxi,China)
出处
《中国钨业》
CAS
2018年第5期36-40,共5页
China Tungsten Industry
基金
国家自然科学基金资助项目(51564014
51874150)
江西省重点研发计划项目(20171BBG70043)
江西省研究生创新专项资金项目(YC2014-S347)
关键词
钨矿
重选
摇床
联合工艺
tungsten ore
gravity separation
table concentrator
combined process
