An Experimental Investigation on the Copper Recovery from Flotation Tailing Dams by Reflotation
- Authors: Mousavinezhad S.K.1, Pourghahramani P.2, Aghazadeh S.1
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Affiliations:
- School of Mining Engineering
- Department of Mining Engineering
- Issue: Vol 59, No 1 (2018)
- Pages: 23-31
- Section: Mineral Processing of Nonferrous Metals
- URL: https://journals.rcsi.science/1067-8212/article/view/226408
- DOI: https://doi.org/10.3103/S1067821218010133
- ID: 226408
Cite item
Abstract
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.
About the authors
Seyed Kamal Mousavinezhad
School of Mining Engineering
Author for correspondence.
Email: k.mousavinezhad@gmail.com
Iran, Islamic Republic of, Tehran
Parviz Pourghahramani
Department of Mining Engineering
Email: k.mousavinezhad@gmail.com
Iran, Islamic Republic of, Tabriz
Sajjad Aghazadeh
School of Mining Engineering
Email: k.mousavinezhad@gmail.com
Iran, Islamic Republic of, Tehran