Particle-based Sb distribution model for Cu–Pbflotation as part of geometallurgical modelling atthe polymetallic Rockliden deposit, north-central Sweden
Number of Authors: 6
2016 (English)In: Transactions of the Institution of Mining and Metallurgy Section C - Mineral Processing and Extractive Metallurgy, ISSN 0371-9553, E-ISSN 1743-2855Article in journal (Refereed) Epub ahead of print
The polymetallic Cu–Zn ore of the Rockliden massive sulphide deposit in the Skellefte District innorth-central Sweden contains a number of deleterious elements in relevant concentrations. Ofparticular concern is the amount of antimony (Sb) reporting to the Cu–Pb concentrate. The aimof this study was to compare different model options to simulate the distribution of Sb minerals ina laboratory flotation test based on different degrees of details in the mineralogical information ofthe flotation feed. Experimental data obtained from four composites were used for the modellingand simulation. The following different simulation levels were run (sorted from least to highestlevel of detail of their mineralogical information): chemical assays, unsized bulk mineralogy,sized bulk mineralogy and particle information. It was shown that recoveries simulated based onbulk mineralogy are mostly within the error margin acceptable in the exploration stage of theRockliden deposit. Unexpected high deviation in the simulation using particle information fromthe original recovery has been partly attributed to the fact that recovery of non-liberated particlescannot be modelled appropriately in the present version of the modelling and simulationsoftware. It is expected that the implementation of full particle information in simulation willimprove the Sb distribution model for the mineralogically complex Rockliden deposit.
Place, publisher, year, edition, pages
Geology Metallurgy and Metallic Materials
Research subject Ore Geology; Mineral Processing
IdentifiersURN: urn:nbn:se:ltu:diva-59915DOI: 10.1080/03719553.2016.1224048ScopusID: 2-s2.0-84989221066OAI: oai:DiVA.org:ltu-59915DiVA: diva2:1039533