Fundamental investigation of particle-fluid flow in the IsaMill grinding process

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The Australian mining and minerals processing industries generated exports of about $56 billion in 2004/5, representing approximately 44 per cent of Australia's total exports. Grinding is a basic operation that liberates valuable minerals from the host rock. However, conventional grinding technologies are very inefficient. The newly developed IsaMill technique greatly improves the power efficiency of the grinding process. This project aims to understand the flow of particles and fluids within IsaMill through combined experimental and numerical studies, leading to improved grinding performance and lower energy consumption. Such work will provide a significant economic benefit not only to Xstrata but also to the Australian mineral processing industry.