Gravity Separation and Desliming of Fine Particles. This project will be of benefit to the Australian coal and mineral processing industries, worth tens of billions of dollars to the Australian economy each year. The objective is to establish an innovative system of cascading Reflux Classifiers for achieving both gravity separation and desliming of fine particles. Presently millions of tonnes of fine coal exist in tailings dams, unrecoverable by existing technologies such as flotation. This rese ....Gravity Separation and Desliming of Fine Particles. This project will be of benefit to the Australian coal and mineral processing industries, worth tens of billions of dollars to the Australian economy each year. The objective is to establish an innovative system of cascading Reflux Classifiers for achieving both gravity separation and desliming of fine particles. Presently millions of tonnes of fine coal exist in tailings dams, unrecoverable by existing technologies such as flotation. This research will provide options for the recovery of this resource, making the remediation of these sites economically viable. The project will also support the education and training of researchers in this field of importance to Australia’s future.Read moreRead less
A high-rate process for mineral flotation. Flotation is an important operation in the minerals industry, the bedrock of Australia's prosperity. Currently it is hard to recover the finest valuable particles. A new device has been discovered that is up to a 100 times faster, giving improved recoveries and much lower capital cost. This project will investigate new phenomena used in the device.
Flotation of composite particles. This project will address an important problem in the flotation process for the minerals industry, the recovery of composite particles, which are mixtures of pure mineral and host rock. The project will investigate several remarkable discoveries recently reported that have the potential to improve significantly the recovery of composites and, surprisingly, of particles of pure mineral as well. New flotation devices will be developed in which the flow conditions ....Flotation of composite particles. This project will address an important problem in the flotation process for the minerals industry, the recovery of composite particles, which are mixtures of pure mineral and host rock. The project will investigate several remarkable discoveries recently reported that have the potential to improve significantly the recovery of composites and, surprisingly, of particles of pure mineral as well. New flotation devices will be developed in which the flow conditions are highly favourable to the recovery of coarse and ultrafine particles, with potential to reduce the costs of grinding energy and milling media in concentrators by half.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100085
Funder
Australian Research Council
Funding Amount
$340,000.00
Summary
Soft matter and responsive materials characterisation facility. The processing of minerals, foods and pharmaceutical materials underpins the delivery of these materials to the community. The industries associated with the named areas have cost-driven demands for higher throughput and constraints imposed by water and energy conservation requirements. Technological advances in the processing of soft matter and responsive materials therefore offer a gateway to revolutionary changes in many aspects ....Soft matter and responsive materials characterisation facility. The processing of minerals, foods and pharmaceutical materials underpins the delivery of these materials to the community. The industries associated with the named areas have cost-driven demands for higher throughput and constraints imposed by water and energy conservation requirements. Technological advances in the processing of soft matter and responsive materials therefore offer a gateway to revolutionary changes in many aspects of our everyday lives. The outcomes from research addressing these classes of advanced materials will translate into improvements in Australian industries and in training the next generation of world leading Australian scientists and engineers using state-of-the-art technology.Read moreRead less
Triboelectric separation - fundamentals and practice. Triboelectric separation is a novel way to refine mineral ores without using scarce water resources, based on the familiar generation of electrostatic charge by friction. This project will provide a practical dry particle separation process, and a better understanding of a common and important problem in electrostatics.
Depressing pyrite in selective flotation of complex polymetallic ores . This project aims to understand the reactions taking place on the major gangue (waste) mineral during the recovery of base-metal and precious minerals. The mining industry is processing low grade complex ores and experiencing difficulties in rejecting gangue minerals in mineral separation and metal extraction plants. The project will develop new technologies that manipulate these reactions to achieve mineral separation and ....Depressing pyrite in selective flotation of complex polymetallic ores . This project aims to understand the reactions taking place on the major gangue (waste) mineral during the recovery of base-metal and precious minerals. The mining industry is processing low grade complex ores and experiencing difficulties in rejecting gangue minerals in mineral separation and metal extraction plants. The project will develop new technologies that manipulate these reactions to achieve mineral separation and metal extraction efficiently and economically. These technologies may provide value in processing low quality complex polymetallic resources using low quality water, whilst halving the operating costs of mineral concentrators and providing corresponding reductions in harmful emissions.Read moreRead less
Depressing pyrrhotite in copper and gold flotation. The mining industry is processing low-grade ores associated with high amounts of waste minerals. Extracting metals from low-grade ores is very difficult with technical challenges in rejecting waste minerals. This project aims to understand the surface properties and the behaviour of a major waste mineral which is becoming increasingly problematic during the processing of copper and gold ores. New chemistry and chemical reagents will be develope ....Depressing pyrrhotite in copper and gold flotation. The mining industry is processing low-grade ores associated with high amounts of waste minerals. Extracting metals from low-grade ores is very difficult with technical challenges in rejecting waste minerals. This project aims to understand the surface properties and the behaviour of a major waste mineral which is becoming increasingly problematic during the processing of copper and gold ores. New chemistry and chemical reagents will be developed to efficiently and economically reject the waste mineral by manipulating the reactions that take place on its surface. This project expects to have immediate economic and environmental impacts through increasing metal production, cutting greenhouse gas emissions and applying new green reagents.Read moreRead less
Engineering the sulphidising reactions for flotation of low quality ores. Engineering the sulphidising reactions for flotation of low quality ores. This project aims to engineer sulphidisation reactions to enhance the flotation of low quality ores for the minerals industry. Sulphidisation uses flotation to enrich base metal and precious minerals from low quality ores containing oxides and oxidised sulphides before expensive leaching or smelting. However, the current sulphidisation method is neit ....Engineering the sulphidising reactions for flotation of low quality ores. Engineering the sulphidising reactions for flotation of low quality ores. This project aims to engineer sulphidisation reactions to enhance the flotation of low quality ores for the minerals industry. Sulphidisation uses flotation to enrich base metal and precious minerals from low quality ores containing oxides and oxidised sulphides before expensive leaching or smelting. However, the current sulphidisation method is neither efficient nor widely used. This project will tailor sulphidisation reactions to generate desirable surface products that are not sensitive to flotation conditions. The intended outcome of this project is to provide a step change value in processing low quality resources while minimising the environmental effects of stockpiles.Read moreRead less
Regrinding chemistry and particle breakage mechanisms in increased surface hydrophobicity on fine and ultra-fine particles in mineral flotation. This project will study the effect of regrinding chemistry and particle breakage mechanisms on the redistribution of flotation collectors and the evolution of the metal oxidation species on mineral surfaces. New technologies will be developed to increase mineral surface hydrophobicity and therefore increase fine and ultra-fine particle flotation.