Spectroscopic study of mixed collector adsorption on pyrite to enhance refractory gold ore beneficiation by flotation

A. Otsuki, Y. Zhao

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

Abstract

This paper discusses the primary collector adsorption onto a sulphide mineral in mixed collector systems to understand its adsorption mechanism. UV-vis measurements were performed to identify the primary collector concentration adsorbed on pyrite, and the adsorption kinetics under different conditions were compared to distinguish their difference between single and mixed collector systems. Small amount of secondary collector addition prior to the primary collector addition significantly improved the adsorption kinetics of primary one. The result was explained by the combination of two previously proposed mechanisms (i.e., different adsorption site mechanism and multi-layer product mechanism). This study showed UV-vis measurement as an effective tool to study mixed collector adsorption behaviour.

Original languageEnglish
Title of host publicationIMPC 2016 - 28th International Mineral Processing Congress
PublisherCanadian Institute of Mining, Metallurgy and Petroleum
ISBN (Electronic)9781926872292
StatePublished - 2016
Externally publishedYes
Event28th International Mineral Processing Congress, IMPC 2016 - Quebec City, Canada
Duration: 11 Sep 201615 Sep 2016

Publication series

NameIMPC 2016 - 28th International Mineral Processing Congress
Volume2016-September

Conference

Conference28th International Mineral Processing Congress, IMPC 2016
Country/TerritoryCanada
CityQuebec City
Period11/09/1615/09/16

Keywords

  • Adsorption mechanism
  • Flotation
  • Primary collector
  • Pyrite
  • Secondary collector
  • UV-vis

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