期刊论文

中文

矿冶工程

0253-6099

2015

35

5

42-45

10.3969/j.issn.0253-6099.2015.05.0012

国家高技术研究发展计划（“863”计划）项目（2007AA06Z129）； 西南科技大学教育部重点实验室开放基金（13zxgk01）；

本校为其他机构

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。

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 railings 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 min...