CAJ | 학술논문

针对镍钼矿中钼酸钙浮选回收率低、丢弃造成资源浪费和环境污染等问题,在工艺矿物学研究基础上,对镍钼矿中硫化矿物浮选尾矿进行了开路实验和闭路实验,设计了氧化钼浮选流程,并利用分子动力学模拟研究了捕收剂分子在矿物解离面的吸附过程,结果表明:镍钼矿中硫化矿物浮选尾矿主要含钼矿物为钼酸钙,脉石矿物主要为氟磷灰石和黄铁矿;通过闭路浮选试验得到了Mo品位3.24%、Ni品位3.37%、Mo回收率69.15%、Ni回收率62.44%的精矿;捕收剂油酸分子在钼酸钙(111)面吸附强于氟磷灰石(010)面和黄铁矿( 110)面,从而实现了浮选过程中钼酸钙和脉石矿物的分离,说明捕收剂CSU-Y可浮选分离钼酸钙和脉石矿物.
침대얼목광중목산개부선회수솔저、주기조성자원낭비화배경오염등문제,재공예광물학연구기출상,대얼목광중류화광물부선미광진행료개로실험화폐로실험,설계료양화목부선류정,병이용분자동역학모의연구료포수제분자재광물해리면적흡부과정,결과표명:얼목광중류화광물부선미광주요함목광물위목산개,맥석광물주요위불린회석화황철광;통과폐로부선시험득도료Mo품위3.24%、Ni품위3.37%、Mo회수솔69.15%、Ni회수솔62.44%적정광;포수제유산분자재목산개(111)면흡부강우불린회석(010)면화황철광( 110)면,종이실현료부선과정중목산개화맥석광물적분리,설명포수제CSU-Y가부선분리목산개화맥석광물.
To avoid problems such as low recovery, resource loss and environmental pollution generated during the flotation of calcium molybdate in Ni-Mo ore, open-circuit and closed-circuit tests were carried out to treat flotation tailings of sulfide minerals based on the mineralogical analysis, and a flotation process for oxidized molybdenum ore was proposed while the method of molecular dynamics simulation was introduced to study the absorption behavior of the collector on calcium molybdate and pyrite. The results show that, the primary molybdenum mineral in sulfide mineral flotation tailings is calcium molybdate, while the main gangues are fluorapatite and pyrite. The closed-circuit flotation test resulted in a concentrate grading 3.24% Mo and 3.37% Ni with corresponding recoveries of 69.15% and 62.44%. Collector CSU-Y can be easily absorbed on (111) surface of calcium molybdate, while hardly on (010) plane of apatite and (110) plane of pyrite, through which an efficient flotation separation of calcium molybdate and gangues in tailings can be attained.