某低品位钼矿浮选工艺研究  

Research on Floatation Technology of a Low Grade Molybdenum Ore

作　　者：刘海营[1] 李崇德[1] 

机构地区：[1]北京矿冶研究总院矿物加工科学与技术国家重点实验室,北京100260

出　　处：《有色金属（选矿部分）》2013年第1期35-39,共5页Nonferrous Metals（Mineral Processing Section）

摘　　要：某钼矿含钼0.045%,含硫3.16%,钼主要以独立的辉钼矿形式存在,其他硫矿物以黄铁矿、黄铜矿为主,脉石矿物主要为石英、云母、长石。辉钼矿以中细粒嵌布为主,其粒度分布范围较宽,与黄铁矿等硫化矿关系比较紧密。采用粗磨浮钼—粗精矿细磨精选—钼粗选尾矿选硫的工艺流程,获得了合格的钼精矿,并综合回收硫。浮选闭路试验指标为:钼精矿品位45.13%、钼回收率83.97%,硫精矿品位51.06%、硫回收率95.36%。A molybdenum ore contains 0.045% Mo and 3.16% S, in which molybdenite supplies Mo overwhelmingly, pyrite and chaleopyrite contribute other S mainly. Quartz, mica and feldspar are the main gangue minerals. Molybdenite ore with wide particle size distribution is embed in other sulfide minerals, and characterized by a fine-grained dissemination characteristics. A process consisting of preferential Mo flotation, rough Mo-eoncentrate regrinding and sulfur dressing of rough Mo-tailings is used in the test. In the closed circuit test, molybdenum concentrate can be acquired with Mo content 45.13% and recovery 83.97%, and sulphur concentrate with S content 51.06% and recovery 95.36%.

关 键 词：低品位钼矿 粗磨 综合回收 

分 类 号：TD954[矿业工程—选矿] TD923