Aerosol collector addition in flotation – evaluation of delivery options
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1
Julius Kruttschnitt Mineral Research Centre, University of Queensland, Indooroopilly, Australia
 
2
ARC Centre of Excellence on Eco-Efficient Beneficiation of Minerals (CE200100009), University of Newcastle, Callaghan, Australia
 
 
Publication date: 2023-10-27
 
 
Corresponding author
Candice Jeanine Brill   

Julius Kruttschnitt Mineral Research Centre, University of Queensland, Indooroopilly, Australia
 
 
Physicochem. Probl. Miner. Process. 2023;59(5):174475
 
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ABSTRACT
In conventional flotation systems, the collector is adsorbed onto mineral particles from the aqueous phase at the solid/liquid interface. Aerosol collector addition is a concept whereby collector molecules are introduced to mineral surfaces via the surfaces of bubbles or the solid/gas interface. Several studies have demonstrated this concept, ranging from the analysis of ideal mineral surfaces to laboratory-scale flotation of complex water systems. However, the physical addition of a collector to the surfaces of bubbles is not a common process and has no uniform methodology. If aerosol collector addition is to be studied as a viable reagent addition technique, it becomes necessary to develop and test appropriate methods that could be replicated across several different studies. This work examines two aerosol addition methods: a conventional Venturi-style gas liquid nozzle, as well as a purpose-built atomiser developed for use in pharmacological applications. Both were compared to a standard “upfront conditioning” batch dosage method and were found to be safe, simple to use and produced comparable flotation outcomes.
eISSN:2084-4735
ISSN:1643-1049
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