The University of Newcastle, Australia

P20 – Flotation Kinetics of Ultrafine Mineral Particles using a Sparger in a Downcomer

Closing Date: 31 December 2020Apply Now

PhD Scholarship

Supervisor: Laureate Professor Kevin Galvin - The ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals is seeking creative and innovative PhD applicants to join our national collaborative Centre, to develop transformational technologies to reduce energy and water consumption and increase metals recovery. This project investigates the enhanced bubble-particle collision kinetics of ultrafine particles in a novel downcomer.

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The Centre’s inclusive and equitable culture is supported by specific equity and diversity initiatives, which will support all members to achieve their career goals.

The aim of this study is to relate the extreme kinetics produced in a downcomer formed using a gas sparger arrangement to measurable quantities including the shear rate, bubble volume fraction, bubble size and particle size. In turn the project seeks to determine the fundamental limits on bubble-particle collision and attachment rates.

A well-defined sparger geometry will be used in the experimental investigation to quantify the internal shear rate of the gas and liquid fluxes, and particle size using high speed flow visualisation to achieve in situ bubble size measurements. The work will involve collaboration with researchers from the University of Queensland.

This project has the potential to deliver improved kinetics for bubble-particle attachment, especially at finer particle sizes, offering the transformational change needed in recovery of valuable minerals. Old tailings dams might be reprocessed to recover minerals for metals, allowing and even funding the rehabilitation of the land.

For more information on our Centre please visit

PhD Scholarship details

Funding: $33,092 per annum (2020 rate). For a PhD candidate, the living allowance scholarship is for 3.5 years and the tuition fee scholarship is for four years. Scholarships also include up to $1,500 relocation allowance and Overseas Student Health Cover at single rate, for an international candidate.

Supervisor: Laureate Professor Kevin Galvin

Available to: Domestic and International students


Eligibility Criteria

The applicant will need to meet the minimum eligibility criteria for admission.

Application Procedure

Interested applicants should send an email expressing their interest along with scanned copies of their academic transcripts, CV, a brief statement of their research interests and a proposal that specifically links them to the research project.

Please send the email expressing interest to by 5pm on 31 December 2020.

Applications Close 31 December 2020 Apply Now

Contact Laureate Professor Kevin Galvin
Phone +61 2 4033 9077

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