Solvent Extraction & Recycling Specialists
Mixer-Settler Systems Engineered for Performance
No Interstage Pumps. No Unnecessary Complexity. Just SX That Works.
Over 45 years designing and manufacturing advanced mixer-settler units for mineral extraction and material recovery — from pilot plants to full commercial operations.
Why QPEC
Key Design Advantages
No Interstage Pumps
Specially designed impellers mix and pump feed streams at the mixer eye, eliminating interstage pumps and simplifying system control.
Equal Liquid Levels
Equal levels in mixer and settler allow straightforward startup and shutdown — no surge tanks needed to handle backflow.
Flexible Configurations
Available in simplex, duplex, or triplex configurations with auxiliary axial flow mixers. Wide variety of construction materials.
Pilot to Commercial Scale
From 100 ml/min pilot units to 2,000 GPM commercial systems. Handles negative pH levels.
Mineral Extraction
From Mine to Metal
Our mixer-settler systems are integral to efficient mineral extraction, handling a broad range of materials across pilot and commercial-scale operations worldwide.
Material Recovery
Recycling & Recovery
We apply the same advanced technologies to material recovery through recycling, ensuring sustainable practices and maximum resource efficiency — from spent battery acid to hazardous waste metal recovery.
Materials We Process
Broad Range of Minerals & Rare Earths
Ready to Discuss Your Project?
Whether you need a pilot plant unit or a full commercial system, our team has the experience to deliver reliable, high-performance equipment tailored to your specific needs.