Laboratory and Miniplant Studies on Cu/Ni Separation

摘要：

During the flowsheet development for a potential commercial Cu/Ni separation plant at the Incos Sudbury operation, extensive laboratory and miniplant studies were carried out. There are two potential feed streams for Cu/Ni separation at the existing operation. It is shown that Cu/Ni separation from the rougher concentrate is relatively simple without need of reglind. However,Cu/Ni separation can be difficult from the bulk concentrate because of the presence of excess flotation reagents in the bulk concentrate slurry and locked particles. Excess flotation reagents created excess froth increasing entrainment. By replacing the slurry water with tap water and with addition of some hydrogen peroxide, entrainment is minimized and good Cu/Ni separation is achieved on the bulk concentrate. Fine regrind is required to increase liberation of the locked particles for ultimately high copper recovery at the minimal nickel content.

关键词： Chalcopyrite Pentlandite Pyrrhotite Flotation Depression

作者: M. Q. Xu P. F. Wells

作者单位: Vale Inco Technical Services Limited, Mississauga, Ontario, Canada

会议类型: 国际会议

会议名称: XXIV International Mineral Processing Congress(第24届国际矿物加工大会)

会议地点: 北京

会议语种:英文

页码: 1653-1657

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）