Flotation of a Complex Sulphide Ore: Raw Material Characterization and Optimization of Process Parameters

Abu Huraira

Research output: ThesisMaster's Thesis


This master thesis investigates the separation of complex sulphide minerals present in a fluorite-barite ore. The industrial sample analyzed in this work contains significant amounts of copper and silver-bearing phases. These phases are enriched into a valuable concentrate by flotation, with the long-term objective of maximizing the recovery of the valuable components through process optimization. Grinding tests are first conducted at a laboratory scale using a wet-operated rod mill. Critical flotation feed characteristics and comminution indexes are determined from the grinding products such as particle size distributions and specific energy consumption. Lab-scale flotation tests are thus conducted to evaluate the effects of feed particle size, conditioning parameters, collector types and dosages, and the number of flotation stages. Particle size class-specific analyses in the form of Henry-Reinhardt diagrams for the flotation tailings are finally conducted to refine the process parameters and to gain knowledge about its limits.
Translated title of the contributionFlotation komplexer Sulfiderze: Rohgut-Charakterisierung und Optimierung von Prozessparametern
Original languageEnglish
Awarding Institution
  • Montanuniversität
  • Flachberger, Helmut, Supervisor (internal)
  • Prem, Dominic, Co-Supervisor (internal)
Award date28 Jun 2024
Publication statusPublished - 2024

Bibliographical note

embargoed until 05-06-2029


  • Grinding
  • Particle Size Distribution
  • Bond Work Index
  • Henry-Reinhardt Diagrams
  • Flotation
  • Reagents
  • Yield

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