Reducing the deleterious impacts of clay particle interactions with valuable minerals in copper and gold processing. This project seeks to understand the rheological behaviour of clay minerals and the effect of the viscosity caused by clay minerals on gas dispersion, the transport of network structures and the locking of the structures in the froth in mineral flotation. Novel methods will be developed to improve flotation separation by reducing the viscosity.
Uncertainty and Risk Quantifying Optimistion for Open Pit Mine Design and Production Scheduling. Open pit mine design and production scheduling (OPDPS) deals with the management of cash flows in the order of hundreds of millions of dollars, and is a critical aspect of mining ventures. To enhance decision-making under conditions of uncertainty, this proposal aims to develop a new methodology for OPDPS based on mathematical and statistical techniques which model uncertainty in key parameters, geol ....Uncertainty and Risk Quantifying Optimistion for Open Pit Mine Design and Production Scheduling. Open pit mine design and production scheduling (OPDPS) deals with the management of cash flows in the order of hundreds of millions of dollars, and is a critical aspect of mining ventures. To enhance decision-making under conditions of uncertainty, this proposal aims to develop a new methodology for OPDPS based on mathematical and statistical techniques which model uncertainty in key parameters, geological, mining and market/cost and their effects on economic forecasts. The new formulation is founded on stochastic integer programming, and its integration with spatial stochastic simulations of geological attributes. Methods developed are computerised and tested in field studies.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
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
Hot stage separation of non-ferrous fraction during iron ore reduction. The project aims to provide in-situ investigation of the behaviour and properties of the non-ferrous fraction in iron ore during reduction. The results aim to allow industry to: improve the quality of the final metallic iron product; economically separate and recover high-value non-ferrous impurities in the iron ore; reduce waste generated by ironmaking; and enable utilisation of, and add value to, iron ores that currently a ....Hot stage separation of non-ferrous fraction during iron ore reduction. The project aims to provide in-situ investigation of the behaviour and properties of the non-ferrous fraction in iron ore during reduction. The results aim to allow industry to: improve the quality of the final metallic iron product; economically separate and recover high-value non-ferrous impurities in the iron ore; reduce waste generated by ironmaking; and enable utilisation of, and add value to, iron ores that currently are not commercially viable due to their high impurity levels and low iron contents. The project aims to help expand the mining potential of the currently unviable iron ore deposits and enable industry to maintain the economic benefits from iron ore production in the years to come.Read moreRead less
Mitigating the negative effects of process water on recovering gold. Low quality water has been used in the minerals industry to save fresh water but shows harmful effects on gold extraction. This project aims to understand the interactions of organic and inorganic components, existing in process water, with gold and determine problematic components that inhibit gold extraction. Expected outcomes will be developed bio-sorbents, based on agriculture waste, that can remove the problematic componen ....Mitigating the negative effects of process water on recovering gold. Low quality water has been used in the minerals industry to save fresh water but shows harmful effects on gold extraction. This project aims to understand the interactions of organic and inorganic components, existing in process water, with gold and determine problematic components that inhibit gold extraction. Expected outcomes will be developed bio-sorbents, based on agriculture waste, that can remove the problematic components in process water efficiently and economically. This will provide major benefits for the minerals industry by providing options to respond and adapt to the impacts of water quality change, leading to increases in yield, revenue and growth of the precious metal sector whilst cutting poisonous chemical consumptions.Read moreRead less
Improving the processing of low-grade copper ores . The project aims to investigate the electrochemical interaction occurring during the grinding of low-grade copper ores and understand how the interaction affects the recovery of copper minerals and rejection of waste minerals in the subsequent separation process. This project expects to generate new knowledge in the area of minerals processing and materials engineering using interdisciplinary approaches. Expected outcomes of this project includ ....Improving the processing of low-grade copper ores . The project aims to investigate the electrochemical interaction occurring during the grinding of low-grade copper ores and understand how the interaction affects the recovery of copper minerals and rejection of waste minerals in the subsequent separation process. This project expects to generate new knowledge in the area of minerals processing and materials engineering using interdisciplinary approaches. Expected outcomes of this project include cost-effective new steel products used for grinding copper ores and new chemical solutions to selectively reject waste minerals during mineral separation. This should significantly reduce the operating costs in copper processing plants and increase the copper production from low-grade copper ores.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
Optimising non-explosive rock breaking technology. Non-explosive rock breaking technology has the potential to significantly improve safety and production in mining and construction industries. This project will quantify a non-explosive hydraulic rock breaking technology through innovative theoretical and numerical investigations. The influences of all the key factors on the efficiency of this technology will the examined. It is envisaged that the outcomes from this proposal will optimise the no ....Optimising non-explosive rock breaking technology. Non-explosive rock breaking technology has the potential to significantly improve safety and production in mining and construction industries. This project will quantify a non-explosive hydraulic rock breaking technology through innovative theoretical and numerical investigations. The influences of all the key factors on the efficiency of this technology will the examined. It is envisaged that the outcomes from this proposal will optimise the non-explosive rock breaking technology, greatly improve its application and guide our industry partner to develop reliable equipment.Read moreRead less
Enhancing Direct Cu Recovery through Increased Gas Processing Understanding. This project aims to investigate mechanisms of copper loss during smelting and find new ways to reduce the loss. Smelting, which produces copper matte product and slag tailings, is an important step of the copper-making process from copper sulphides. The loss of copper to slag can be as high as 12 per cent. The project aims to create new knowledge about copper loss by matte droplets floated with gas bubbles generated by ....Enhancing Direct Cu Recovery through Increased Gas Processing Understanding. This project aims to investigate mechanisms of copper loss during smelting and find new ways to reduce the loss. Smelting, which produces copper matte product and slag tailings, is an important step of the copper-making process from copper sulphides. The loss of copper to slag can be as high as 12 per cent. The project aims to create new knowledge about copper loss by matte droplets floated with gas bubbles generated by chemical reactions to the slag phase. The outcomes are intended to enable copper smelters to maximise direct copper recovery, reduce copper production costs and increase the productivity of the smelting process.Read moreRead less