Microwave Treatment of Ores

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Microwave test work is the newest addition to Sepro Labs. Microwave treatment offers several unique benefits due to the differences in heating response between valuable minerals and waste minerals.

Different minerals have different heating responses when subjected to microwave energy, and valuable minerals often heat more quickly than waste minerals. This unique heating behaviour creates thermal stress and fractures along grain boundaries of target and waste minerals. The result is reduced ore competency and improved mineral liberation, which allows for a coarser grind compared to untreated ores. Differential heating patterns can also be detected with a thermal camera. Our proprietary sorting algorithm uses this heating information to reject barren rocks prior to grinding.

The coarser grind size, improved mineral liberation, and higher ore grade can improve downstream processes such as gravity concentration, flotation, cyanidation, dewatering, and tailings management. The overall benefits of microwave treatment include increased plant throughput, reduced water use and GHG emissions, and potential energy savings of over 50%.

To find out more about how we can apply microwave technology to your project, reach out to our team at Sepro Labs. We are happy to discuss the various aspects of our test program and how we can tailor our approach to each of your projects. We also have an existing database on the microwave response of dozens of ores, so even with limited mineralogical information, we can provide an educated guess about the microwave response of the ore and what the potential benefit could be.

Watch and Learn

Dr. Erin Bobicki: Microwave Treatment of Ores FAQs

Microwave Treatment of Ores

How Microwave Testing Works

Innovative Mineral Processing With Microwave Technology | CanMicro Technology

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