Abstract
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 contribution | Flotation komplexer Sulfiderze: Rohgut-Charakterisierung und Optimierung von Prozessparametern |
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Original language | English |
Qualification | MSc |
Awarding Institution |
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Supervisors/Advisors |
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Award date | 28 Jun 2024 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
embargoed until 05-06-2029Keywords
- Grinding
- Particle Size Distribution
- Bond Work Index
- Henry-Reinhardt Diagrams
- Flotation
- Reagents
- Yield