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Metal Mine ›› 2014, Vol. 43 ›› Issue (06): 69-74.

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Beneficiation Test of Copper, Iron and Sulfur Recovery from Hekou Copper Ore

Xiao Junhui1,2,3,Shi Zhe3,Sun Hongjuan1,Fan Shanping1,Wang Zhen1   

  1. 1.School of Environment and Resource, Southwest University of Science and Technology,Mianyang 621010,China;2.Sichuan Non-ferrous Technology Group Co.,Ltd.,Chengdu 610081,China;3.Faculty Metallurgical and Energy Engineering, Kunming University of Science and Technology,Kunming 650093,China
  • Online:2014-06-16 Published:2015-01-07

Abstract: Hekou copper ore in Yunnan contains Cu grade of 0.59%, S grade of 4.57% and Fe grade of 26.98%.It belongs to the S-Fe associated low grade copper sulphide ore, among which Cu, S and Fe exist in the form of chalcopyrite, pyrite and magnetite respectively.But there are a small amount of chalcopyrite and pyrite formed solid solution.Comprehensive recovery tests of copper, sulfur and iron were conducted by the process of copper-sulfur bulk flotation, copper-sulfur separated flotation, and low intensity magnetic separation of flotation tailings.Then, copper concentrate with Cu grade of 18.03% and Cu recovery of 93.07%, sulfur concentrate with S grade of 52.02% and S recovery of 52.02%, and iron concentrate with Fe grade of 61.90% and Fe recovery of 27.38% were obtained separately.This provides a technical basis for development and utilization of the ore.

Key words: S-Fe associated low grade copper sulphide ore, Copper-sulfur bulk flotation, Copper-sulfur separated Flotation, Low intensity magnetic separation