Russian Journal of Non-Ferrous Metals

, Volume 59, Issue 1, pp 23–31 | Cite as

An Experimental Investigation on the Copper Recovery from Flotation Tailing Dams by Reflotation

  • Seyed Kamal Mousavinezhad
  • Parviz Pourghahramani
  • Sajjad Aghazadeh
Mineral Processing of Nonferrous Metals


In this study, the possibility of copper recovery from flotation tailing of Mazraeh copper mine was investigated. Magnetic separation method was used for concentration of non-magnetic minerals, especially copper bearing minerals, from iron minerals. As a result, copper grade increased up to 0.18% and its recovery reached 86%. Due to mineral’s oxidized surface, accompanied oxide minerals and large quantities of fine particles (i.e. about 80% and 57% were finer than 37 and 15 μm in the sample, respectively), flotation of copper was very difficult. In this regard, the effects of important factors including solution pH, type and collector dosage, dispersant, impeller speed, type of frother, percent solid and surface sulfurization were studied. It was concluded that copper recovery of 52% and copper grade of 2.7% could be obtained under following conditions: pH: 11, Collector: Z11 with 40 g/t, Impeller speed: 1400 rpm, Frother: A65, percent solid: 10% and surface sulfurization by Na2S with 1000 g/t. On the other hand, the addition of sodium silicate as a dispersant showed a negative effect on the flotation performance.


Mazraeh mine tailing copper flotation Z11 A65 


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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • Seyed Kamal Mousavinezhad
    • 1
  • Parviz Pourghahramani
    • 2
  • Sajjad Aghazadeh
    • 1
  1. 1.School of Mining EngineeringUniversity of TehranTehranIran
  2. 2.Department of Mining EngineeringSahand University of TechnologyTabrizIran

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