某铜钼浮选尾矿浮选试验研究  

FLOTATION TESTS ON FLOTATION TAILINGS OF A COPPER-MOLYBDENUM ORE

作　　者：谭鑫[1,2] 何发钰[3] 谭欣[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110819 [2]北京矿冶研究总院矿物加工科学与技术国家重点实验室,北京102628 [3]中国五矿集团公司,北京100010

出　　处：《矿冶》2015年第6期1-6,18,共7页Mining And Metallurgy

基　　金：国家高技术研究发展计划(863计划)项目(2013AA064101)

摘　　要：为了提升铜钼资源利用效率,对某铜钼尾矿开展铜钼再回收利用浮选试验研究。针对该矿石有用矿物品位低,矿物嵌布粒度较细,且铜的氧化率较高、矿石成分复杂的特点,采用"矿石脱泥—粗砂铜钼部分优先浮选—粗精矿再磨精选—铜钼硫混合浮选—混合精矿再磨后铜钼-硫分离—分离尾矿选硫"的浮选工艺流程,从铜、钼含量分别为0.086%和0.011%的原矿,获得铜钼混合精矿1含铜19.05%,含钼4.32%,铜、钼回收率分别为25.57%、49.71%;铜钼混合精矿2含铜2.49%,含钼0.22%,铜、钼回收率分别为3.73%、2.82%,较好地实现了铜钼资源的再回收利用。In order to improve the beneficiation efficiency of copper-molybdenum resources,a flotation test study was carried out on the flotation tailings of a copper-molybdenum ore. For the material was low in grade of valuable minerals,fine in particle size distribution,complex in compositions and high in oxidation rate of cooper,a process of ＂desliming,Cu-Mo partially-selective flotation for coarse fraction,regrinding of rough concentrate followed by multistage cleaning,Cu-Mo-S bulk flotation,regrinding of bulk concentrate followed by separation of CuMo from S and recovering sulfur from the separation tailings ＂was developed to recover valuable minerals. For the raw tailings with Cu grade of 0. 086% and Mo grade of 0. 011%,the final locked-cycle experiments obtained a good results that the copper molybdenum mixed concentrate 1 contained Cu 19. 05%,Mo 4. 32%,with recoveries of 25. 57% for Cu and 49. 71% for Mo respectively,and the copper molybdenum mixed concentrate 2 contained Cu2. 49%,Mo 0. 22%,with Cu recovery 3. 73% and Mo recovery 2. 82%.

关 键 词：铜钼尾矿 再回收 铜钼混合精矿 脱泥 

分 类 号：TD952[矿业工程—选矿]