陕西某低品位钼矿选矿试验研究  

EXPERIMENTAL STUDY ON PROCESSING OF A LOW GRADE MOLYBDEMUM ORE IN SHANXI PROVINCE

作　　者：陶坤[1,2] 刘水红[1,2] 

机构地区：[1]矿物加工科学与技术国家重点试验室,北京100160 [2]北京矿冶研究总院,北京100160

出　　处：《矿冶》2017年第1期11-15,共5页Mining And Metallurgy

基　　金：国家863科技计划项目(2006AA06Z138)

摘　　要：对陕西某矿区钼原矿进行了工艺矿物学研究和选矿试验研究。矿石中主要回收的金属矿物为辉钼矿,整体嵌布粒度较粗,与其他金属矿物共生较少。结果表明,对含钼0.092%的原矿,一段粗磨使细度达到65%-74μm,采用自主研发的高选择性捕收刘APIV进行二次粗选、一次扫选铜钼混合浮选;钼粗精矿再磨至90%-45μm后,利用水玻璃和硫化钠作为调整剂,经过8次钼铜分离精选,得到合格钼精矿。闭路流程试验可得到品位为48%,回收率为91.04%的钼精矿。Process mineralogy study and mineral processing tests have been carried out for the ore from a molybdenum deposit in Shanxi province.The main metal mineral to be recovered is molybdenite which has a relatively coarse dissemination size and simple association ralation with other metal minerals.The test results show that by grinding the crude ore to the fineness of 65%-74 μm and using self-developed collector APIV for molybdenumcopper bulk flotation with two stages of roughing and one stage of scavenging,a Mo-Cu bulk concentrate can be obtained from the crude ore containing 0.092% Mo.The Mo-Cu bulk concentrate was then reground to the fineness of90%-45μm.Using sodium silicate and sodium sulfide as regulating reagents,a qualified molybdenum concentrate can be obtained after eight stages of Mo-Cu separation and cleaning flotation.The locked-cycle test obtained a molybdenum concentrate containing 48% Mo with a Mo recovery of 91.04%.

关 键 词：钼粗精矿 混合浮选 钼铜分离 再磨 调整剂 

分 类 号：TD954[矿业工程—选矿]