Behavior of iron magnetization and magnetic separation during roasting cyanide tailings

Zhao Hui Zhang*, Bai Long Liu, Hong Zhou Ma, Wu Qiang Wei, Jian Tao Ju

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Given the comprehensive utilization problems of tailings in gold smelting, the behavior of iron in the roasting process is discussed in this paper and the optimal conditions are obtained through reduction roasting of the cyanide tailings. The results show that the amount of iron in the cyanide tailings is 35.55%, but the amount of magnetic iron is only 0.28% of all the iron. An iron ore concentrate with iron grade of 52.81% and recovery of only 20.43% can be obtained by high-intensity magnetic separation to the cyanide tailings. After being reduction roasted at the conditions of 750C,addition volume of pulverized coal 6%,1h and water cooling, the magnetic iron reached up to 84.83%. Have low-intensity magnetic separation on the roasted tailing, the iron grade of the iron ore concentrate is 64.39% and the recovery is 84.67%.

Original languageEnglish
Title of host publicationICMREE2011 - Proceedings 2011 International Conference on Materials for Renewable Energy and Environment
Pages874-877
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 International Conference on Materials for Renewable Energy and Environment, ICMREE2011 - Shanghai, China
Duration: 20 May 201122 May 2011

Publication series

NameICMREE2011 - Proceedings 2011 International Conference on Materials for Renewable Energy and Environment
Volume1

Conference

Conference2011 International Conference on Materials for Renewable Energy and Environment, ICMREE2011
Country/TerritoryChina
CityShanghai
Period20/05/1122/05/11

Keywords

  • magnetic iron
  • magnetic separation
  • recovery
  • reduction
  • roasting
  • tailings

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