Ehanced Hydrodynamic Fractionation of Particles. The coal industry, which is a major contributor to the Australian economy, urgently needs a new washability method following its decision to abandon the existing laboratory standard. The existing method relies on the use of heavy organic liquids which are known to be toxic to human health. The 'water-based' approach proposed in this study overcomes the problem of risk to human health, thus benefiting Australian workers, the immediate industry, and ....Ehanced Hydrodynamic Fractionation of Particles. The coal industry, which is a major contributor to the Australian economy, urgently needs a new washability method following its decision to abandon the existing laboratory standard. The existing method relies on the use of heavy organic liquids which are known to be toxic to human health. The 'water-based' approach proposed in this study overcomes the problem of risk to human health, thus benefiting Australian workers, the immediate industry, and wider community. New separation technologies that could benefit the minerals industries and other key industries should follow. The project will also result in the education and training of two postgraduate students, and the advancement of two postdoctoral researchers in this area of industry. Read moreRead less
Optimizing tailings dewatering through interfacial chemistry and particle interactions. This project aims to improve the dewatering behaviour of waste tailings from mineral processing activites. Dewatering and disposal of tailings containing fine particles are serious issues which confront the mineral industry. Effective dewatering of tailings is determined by particle-solution interfacial chemistry and particle interactions. These properties will be manipulated by matching the molecular arch ....Optimizing tailings dewatering through interfacial chemistry and particle interactions. This project aims to improve the dewatering behaviour of waste tailings from mineral processing activites. Dewatering and disposal of tailings containing fine particles are serious issues which confront the mineral industry. Effective dewatering of tailings is determined by particle-solution interfacial chemistry and particle interactions. These properties will be manipulated by matching the molecular architecture and functionality of flocculants to mineral particle surface chemistry. Optimization of tails interfacial chemistry and particle interactions through conventional and non-conventional flocculants will be investigated and electoosmosis will be applied to achieve maximum dewatering behaviour.The scientific and environmental outcomes will be beneficial to all stakeholders.Read moreRead less
Development of a novel technology for DSP separation and soda recovery in alumina refineries. The successful completion of this project will provide economic and environmental benefits to the Australian alumina industry. For example, this project will provide an effective and economical method for separation of DSP (desilication product) from red mud (thus reducing the pollution by the long-term alkalinity) as well as a new solution to soda recovery. The technology developed will be able to be u ....Development of a novel technology for DSP separation and soda recovery in alumina refineries. The successful completion of this project will provide economic and environmental benefits to the Australian alumina industry. For example, this project will provide an effective and economical method for separation of DSP (desilication product) from red mud (thus reducing the pollution by the long-term alkalinity) as well as a new solution to soda recovery. The technology developed will be able to be used as an example to the waste management and recovery of other Australian mineral, energy and chemical industries. The modelling and mechanism studies will also contribute to materials separation and processing.Read moreRead less
A Fundamental Study of the Breakage of Gibbsite and Smelter Grade Alumina. This project aims to develop a fundamental understanding of the cracking of gibbsite and smelter grade alumina, thus providing useful guidance for the alumina refineries to control the particle size distribution of the smelter grade alumina. This addresses an important issue in alumina refineries in terms of providing a high quality product for the downstream aluminium smelter.
Development of a Novel Flue Gas Desulphurization Technology for Alumina Refineries. This project aims to develop a novel technology of flue gas desulphurization for alumina industry. The successful completion of this project will provide a practical solution to the SOx emission problem in alumina refineries. Specifically, we aim to make use of the waste causticiser sludge discharged during the causticisation of the liquor streams and the used filter aid after the polishing filtration of the ref ....Development of a Novel Flue Gas Desulphurization Technology for Alumina Refineries. This project aims to develop a novel technology of flue gas desulphurization for alumina industry. The successful completion of this project will provide a practical solution to the SOx emission problem in alumina refineries. Specifically, we aim to make use of the waste causticiser sludge discharged during the causticisation of the liquor streams and the used filter aid after the polishing filtration of the refinery pregnant liquors as reagent to remove SOx emitted by the power house and the alumina calciners. We also aim to recover some alumina during the process of flue gas desulphurization thus further reducing the cost of air pollution control.Read moreRead less
Iron and Silica Co-precipitation from Industrial Zinc solutions. The aim of this research project is to gain a molecular level understanding of the physical processes that occur during the co-precipitation of iron and silica from electrolytic zinc liquors. The research program will be specifically focussed on systems in which similar concentrations of iron and silica are present in the liquor. Such systems are of interest to the industry partner as they represent the expected characteristics of ....Iron and Silica Co-precipitation from Industrial Zinc solutions. The aim of this research project is to gain a molecular level understanding of the physical processes that occur during the co-precipitation of iron and silica from electrolytic zinc liquors. The research program will be specifically focussed on systems in which similar concentrations of iron and silica are present in the liquor. Such systems are of interest to the industry partner as they represent the expected characteristics of future process requirements, but they are also of broader relevance to a range of mineral processing industries, as iron and silica occur as impurities in many mineral ores.Read moreRead less
Control Of Aggregate Structure, Settling And Dewatering In Mineral Tailings Processing. Modification of aggregate structures in mineral processing will lead to improved dewatering in tailings operations. In mine site rehabilitation and tailings utilisation, technology developed in this project may save not only millions of dollars in more efficient processing and tailing deposition but also help to better reuse our limited national water resources.
Mineral Physics and Crystal Chemistry of Ni-Co-Laterite Deposits. Ni-Co laterite deposits host more than 50% of the mineable Ni-Co resources on the planet. Australia and Australian mining companies have been major producers of Ni and Co in the past. To continue to play a significant role in the exploration, production, and environmentally sound remediation of Ni-Co laterite mining sites, Australian mining companies must increase their understanding of the mineralogy of Ni-Co-deposits. This res ....Mineral Physics and Crystal Chemistry of Ni-Co-Laterite Deposits. Ni-Co laterite deposits host more than 50% of the mineable Ni-Co resources on the planet. Australia and Australian mining companies have been major producers of Ni and Co in the past. To continue to play a significant role in the exploration, production, and environmentally sound remediation of Ni-Co laterite mining sites, Australian mining companies must increase their understanding of the mineralogy of Ni-Co-deposits. This research program proposes strategic micro-analytical and synchrotron-based research on the fundamental physical properties and crystal chemistry of Ni-Co-laterite minerals from selected deposits in Australia and around the globe.Read moreRead less
Particle Transport and Separation in High Aspect Ratio Inclined Channels. 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 new options for the processing of particles as large as 50mm, and smaller than 50 microns in size, and hence significantly extend the operating size range of the Reflux Classifier. The development of new resources, especially those of ....Particle Transport and Separation in High Aspect Ratio Inclined Channels. 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 new options for the processing of particles as large as 50mm, and smaller than 50 microns in size, and hence significantly extend the operating size range of the Reflux Classifier. The development of new resources, especially those of poorer grade, requires more effective separation technology. Success in this project will significantly benefit the end users of the technology and also contribute to Australia's Mining Services industry.Read moreRead less
Fundamental investigation of the briquetting behaviour of iron ore fines. Handling, including transport and processing, may account for up to 60 per cent of the total delivered price of iron ore. This project will develop an integrated computer model for an improved briquetting process of ore fines with reduced operation cost and less environmental impact, leading to a more competitive and sustainable mineral industry in Australia.