A chemical-free mineral liberation system that improves recovery, cuts energy use, and strengthens circuit performance.
HPSA uses the slurry itself as the grinding medium, eliminating the need for balls, rods, or abrasive media.
High-velocity slurry jets create particle-on-particle collisions that fracture ore along natural boundaries for cleaner, coarser liberation.
Validated on more than 25 ore types, including base metals, precious metals, critical minerals, industrial minerals, and tailings.
High-Pressure Slurry Ablation (HPSA) is a patented, chemical-free mineral liberation technology developed by DISA Technologies. It uses high-velocity slurry jets to create controlled particle-to-particle collisions, breaking ore along natural mineral boundaries without grinding media or chemical reagents.
Because the process relies on mechanical energy and uses the slurry itself as the medium, it reduces wear, eliminates steel contamination and produces cleaner particle size profiles that enhance downstream flotation, leaching and gravity separation.
HPSA has demonstrated strong performance across more than 150 ore campaigns, including copper, nickel, gold, iron ore, graphite, lithium, rare earth elements, phosphate and complex tailings. As a modular, water-based system, it integrates easily into new or existing circuits and supports both primary treatment and tailings re-treatment.
High-pressure slurry ablation inside the chamber breaks down ore on impact, creating rapid mineral liberation without grinding media.
Material and water are blended into a pumpable slurry that feeds the HPSA module at controlled pressure and flow rates.
Inside the chamber, slurry accelerates through engineered nozzles that generate high-velocity jets, driving particle-on-particle collisions.
The jets cause controlled internal collisions that fracture ore along natural grain boundaries, achieving cleaner liberation with fewer fines.
Ablated slurry exits the chamber with improved mineral exposure, ready for flotation, leaching or further processing.
A 100% mechanical system with no grinding media or chemical reagents, eliminating consumable costs and steel contamination.
With no media, liners or mill internals, HPSA reduces wear and lowers maintenance requirements across the circuit.
Particle-to-particle collisions fracture ore along natural boundaries, reducing fines and improving downstream separation efficiency.
HPSA provides a flexible, water-based solution for improving mineral liberation across a range of ores, tailings and processing conditions, helping enhance recovery while reducing energy and consumable use.
HPSA pilot and production units are deployed across a wide range of mineral processing circuits.
HPSA is proven across a wide range of ore types and processing conditions. Its selective liberation mechanism supports both primary treatment and the retreatment of tailings and middlings, helping operators improve recovery and overall circuit efficiency.
Suitable for copper, nickel, zinc, molybdenum, gold, silver and PGM ores where improved liberation enhances downstream recovery.
Effective for graphite, lithium and rare earth elements, supporting cleaner liberation and improved processing efficiency.
Applicable to iron ore, phosphate, chromite, fluorspar and similar materials requiring enhanced mineral exposure.
HPSA increases mineral exposure in complex tailings and middlings, improving recovery from materials previously considered uneconomic.
HPSA delivers measurable improvements in mineral liberation and downstream processing efficiency. Testing and field campaigns show cleaner particle size profiles, reduced fines and higher recovery potential at coarser grind sizes.
Selective breakage exposes mineral surfaces more effectively, improving concentrate grade and recovery in flotation, leaching and related downstream processes.
The media-free process reduces energy demand and eliminates grinding media consumption, lowering wear on downstream equipment and reducing operating costs.
HPSA reduces fines generation and produces a more uniform particle size profile, enhancing separation efficiency and improving circuit performance.
HPSA is engineered as a modular, scalable system that adapts to a wide range of processing capacities. Units are skid-mounted for rapid installation and can be expanded, relocated or integrated into existing circuits with minimal infrastructure changes. This flexibility allows operators to scale from pilot to full-production throughput as project needs evolve.
HPSA integrates easily into both new and existing processing circuits. Its compact, skid-mounted design allows flexible placement in the flowsheet, enabling operators to position the system where improved liberation delivers the greatest downstream benefit.
HPSA modules can be positioned at various points in the flowsheet to target liberation where it has the strongest impact on circuit efficiency and product quality.
The compact, skid-mounted design installs with modest civil works and minimal tie-ins, reducing project complexity and allowing rapid commissioning on constrained sites.
By improving liberation at coarser sizes and reducing fines generation, HPSA strengthens flotation, leaching and gravity separation performance without major flowsheet changes.
DISA provides laboratory testing, pilot-scale validation and technical support to help operators assess HPSA performance and determine the best flowsheet placement. With more than 150 ore campaigns completed, DISA’s team delivers data-driven guidance from initial evaluation through to full-scale implementation. Samples from Western Australia can be coordinated locally for testing through DISA’s approved laboratory network.
Material characterisation and bench-scale liberation assessments are conducted through DISA laboratories in Perth, providing detailed insight into ore response and particle size outcomes.
DISA operates a global fleet of skid-mounted pilot systems for onsite testing, enabling operators to validate HPSA performance under realistic conditions and confirm processing benefits at scale.
DISA provides integration advice, flowsheet optimisation, operator training and ongoing lifecycle support through a global technical network, ensuring reliable performance from pilot work through full-scale deployment.
Explainer video showing how HPSA integrates into mineral processing circuits to deliver faster, cleaner mineral liberation with no grinding media and reduced energy use.
As official sales agents for Disa Technologies, Oreflow is proud to introduce an advanced process technology that complements our existing capabilities in mining equipment and material handling.
This partnership reflects our commitment to offering innovative solutions that reduce reliance on grinding media, minimise wear on downstream equipment and support the treatment of a wide range of challenging materials.
With High-Pressure Slurry Ablation (HPSA), we are adding a forward-looking technology to our portfolio and helping mining and remediation projects explore new approaches to resource recovery and material treatment.
In-depth overview of Disa’s sustainable mineral processing solutions.
Official patent numbers for Disa’s HPSA technology.
Case studies showcasing performance and outcomes.
If you’d like to evaluate HPSA for your site, request testing, or discuss integration options, our team can help guide you through the next steps.