Development of AERO(R) MX3048 Promoter for Oxianas Sepon Concentrator, South Central Laos
Oxiana Sepons mineral processing facility in south central Laos produces copper cathode using leach-autoclave-SX/EW flotation technology. Pyrite recovery in the flotation circuit is critical to the operation, as it is used to generate acid for the leach circuit. However, low pyrite recovery has been an ongoing challenge in the flotation circuit. Tailings characterization work done by Ian Wark Research Institute showed that the pyrite losses to the tail are made up of a combination of coarse liberated particles and finer particles that have been coated by clay fines.In December of 2005, a joint Cytec-Oxiana technical program was initiated to address the pyrite recovery issue. A series of diagnostic tests were performed in the Cytec Stamford Research Facility using synthetic plant water showing that the collector was precipitating as a metal salt, and was unavailable for mineral attachment. The tests also identified several collector chemistries that would likely be robust in the Sepon low pH, high dissolved metal ion environment, and will not complex with ferric, ferrous, or copper in solution. With the support of the Sepon on-site engineers, an extensive, successful laboratory program was completed, which then was followed by on plant testing that showed a step wise improvement in pyrite recovery.
Flotation Pyrite Sulphur recovery leaching Scanning Electron Microscopy X-ray Photoelectron Spectroscopy
Peter Riccio Tony Moore
CYTEC, Stamford, CT., USA Applications Technology Group Oxiana, Sepon Concentrator
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1532-1541
2008-09-24(万方平台首次上网日期,不代表论文的发表时间)