The High Voltage Pulse Comminution (HVP) Pretreatment technology has the potential to be a game changer for the industry, reducing energy use and separation efficiencies by preweakening the ore; promoting selective breakage to enable preconcentation by screening and improving liberation.  The JKMRC's Separation program has conducted experimental testwork to evaluate the potential of this technology for two major mining companies.

HVP technology uses a short-pulsed high voltage discharge, akin to a lightning strike, to selectively break mineralised ores whilst keeping barren rocks intact. This selectivity makes it possible to choose the material which should go to the processing plant and leaving behind material which contains little or no metal.

The reported benefits of HVP are:
  1. Preconcentration - potential to unlock low-grade reserves, upgrading feed grade, allows for early-gangue rejection, increase processing efficiencies
  2. Preweakening - reduces energy demand in downstream energy intensive comminution stages
  3. Improved liberation - potential for recoveries at coarser grind sizes, improved metal recoveries.

Project lead

Dr Christian Antonio
View Christian Antonio's research profile

Key researchers

Associate Professor Kym Runge
View Kym Runge's research profile

Dr Daniel Lay
View Daniel Lay's research profile

Flávio Pereira André
View Flávio Pereira André's research profile

The commercialisation of JKMRC's HVP technology is being supported by the Resources Technology and Critical Minerals Trailblazer, which is building new research capabilities and driving commercialisation in priority areas across the Australian resources sector.

Contact us

Get in touch to learn more about our research.

Dr Christian Antonio

Senior Research Fellow,
Julius Kruttschnitt Mineral Research Centre

+61 7 3365 5977

This project is conducted by the Separation research group within the Julius Kruttschnitt Mineral Research Centre.

JKMRC webpage