摘要
某钨尾矿有用矿物萤石嵌布粒度细,萤石含量低,单体解离难,石英、方解石等脉石矿物含量高,试验研究了该钨尾矿萤石和脉石矿物的浮选分离行为,通过条件试验,选择HY为萤石捕收剂,酸化水玻璃+HF为脉石矿物抑制剂,研究最终确定了一段1次粗选、7次精选工艺流程.结果表明:在钨尾矿含萤石8.12%的条件下,闭路试验获得了精矿CaF2品位95.36%,回收率61.39%的选矿指标,实现了资源的综合回收.
Fluorite in a certain tungsten-tailing has the characteristics of fine dissemination size, low fluorite content and hard monomer dissociation with high content of gangue minerals, such as , quartz and calcite. Experiment is carried out to study the flotation separation of the fluorite and gangue minerals. Technological process of one roughing and seven concentrations is determined through condition experiment with HY as collectors and acidized water glass＋HF as depressants. The result shows that CaF 2 with concentrate grade of 95.36 % and recovery of 61.39 % is recovered from the tungsten-tailing with the fluorite grade of 8.12 %through the closed flotation test. Hence, the comprehensive recycling of resource is achieved.
出处
《有色金属科学与工程》
CAS
2014年第2期72-76,共5页
Nonferrous Metals Science and Engineering
关键词
萤石
浮选
钨尾矿
综合利用
fluorite
flotation
tungsten-tailing
comprehensive utilization
