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
Application of Water Based Fractionation in the Assessment of Metallurgical Coal. The metallurgical coal market (13% of coal market) is highly specialized, and competitive. The coal, which is utilized as a reducing agent in iron making, represents more than 52% of Australian coal exports. This study addresses growing evidence that organic liquids used to fractionate and in turn assess metallurgical coals lead to negative assessments, hence loss of markets, and lost opportunities. A new water bas ....Application of Water Based Fractionation in the Assessment of Metallurgical Coal. The metallurgical coal market (13% of coal market) is highly specialized, and competitive. The coal, which is utilized as a reducing agent in iron making, represents more than 52% of Australian coal exports. This study addresses growing evidence that organic liquids used to fractionate and in turn assess metallurgical coals lead to negative assessments, hence loss of markets, and lost opportunities. A new water based fractionation method will be established, and a systematic investigation into the effects of the organic liquids will be undertaken. These results will be used to build a case for replacing the organic liquids used in the industry, which are known to have negative health and environmental impacts. Read moreRead less
Experimental and numerical studies of the packing and piling of coal. This project is oriented to the coal and steel industries, which are important to Australia. In fact, the coal industry creates a significant employment and produces 80% of electricity in Australia. Australia is also the world's biggest coal exporter. This project will develop methods to control the packing and piling processes of coal, which are of fundamental importance to many granular processes. The benefits from the proje ....Experimental and numerical studies of the packing and piling of coal. This project is oriented to the coal and steel industries, which are important to Australia. In fact, the coal industry creates a significant employment and produces 80% of electricity in Australia. Australia is also the world's biggest coal exporter. This project will develop methods to control the packing and piling processes of coal, which are of fundamental importance to many granular processes. The benefits from the project include improvements in productivity, coke quality and fuel efficiency, which will lead reduced energy consumption and pollution emission and thereby improve the competitiveness of Australia's coal and steel industries. Read moreRead less
Fundamental studies of screening processes in coal preparation. Screening is a most important unit operation widely used in industries but not well understood. This project will investigate the fundamentals governing the dynamic behaviour of coal slurry on desliming screens by a combined theoretical and experimental program. Its aim is to develop and validate a computer model that can simulate the operation under various conditions at a particle level, providing a cost effective way to quantify ....Fundamental studies of screening processes in coal preparation. Screening is a most important unit operation widely used in industries but not well understood. This project will investigate the fundamentals governing the dynamic behaviour of coal slurry on desliming screens by a combined theoretical and experimental program. Its aim is to develop and validate a computer model that can simulate the operation under various conditions at a particle level, providing a cost effective way to quantify the screening performance in relation to materials, machine and operation conditions. It will generate a basis for developing better design and control strategies of screen operation, resulting in an improved competitiveness of Australia's mineral industry.Read moreRead less
Managing Contaminant Metals in Complex Hydrometallurgical Processes; Meeting techno-economic, environmental and operability objectives. Sustainability of the minerals industry is predicated on being able to refine metals from increasingly lower-grade ores. This brings with it the critical problem of managing all contaminant elements present to ensure overall economic and environmental performance. Hydrometallurgical processes are favoured, though difficulties arise in controlling product charact ....Managing Contaminant Metals in Complex Hydrometallurgical Processes; Meeting techno-economic, environmental and operability objectives. Sustainability of the minerals industry is predicated on being able to refine metals from increasingly lower-grade ores. This brings with it the critical problem of managing all contaminant elements present to ensure overall economic and environmental performance. Hydrometallurgical processes are favoured, though difficulties arise in controlling product character to suit downstream processing. This project will develop a fundamental understanding of precipitation processes for optimal recovery of contaminant elements (for a novel zinc process case study), considering the quantitative relationship between all major physico-chemical and engineering features. This will lead to enhanced process designs to meet techno-economic, environmental and operability objectivesRead moreRead less
Thermal and environmental investigation of particle degradation during high temperature processing of iron ores. The proposed project aims to understand particle formation and emissions during high temperature processing of iron ores. The project will lead to improvement of particle emission control from existing iron processing technologies and assist in further improvement of their overall performance achieving increased product output and process economics.
Thermal characterisation of iron ores and coals for HIsmelt operation. Substantial developments in direct reduction ironmaking (DRI) have been recently conducted providing sustainable way for metallurgical operations. The largest advantage of DRI is that it does not require cokemaking and sintering, two processes which are consistently causing environmental concerns. This project aims to thermally investigate coals and iron ores for optimising direct smelting, and to provide insight into effect ....Thermal characterisation of iron ores and coals for HIsmelt operation. Substantial developments in direct reduction ironmaking (DRI) have been recently conducted providing sustainable way for metallurgical operations. The largest advantage of DRI is that it does not require cokemaking and sintering, two processes which are consistently causing environmental concerns. This project aims to thermally investigate coals and iron ores for optimising direct smelting, and to provide insight into effect of the properties of ores and coals on the process. Structural changes using hot stage optical microscopy will be carefully clarified. Finally, a predictive model for DRI and energy requirements for direct smelting based on the experimental outcomes will be developed.Read moreRead less
Mercury emissions from direct iron smelting technology. The proposed research will enhance the environmental performance of the first Australian direct ironmaking industry. This industry will maintain the commitment to environmental responsibility offering cleaner technologies and production. The project will enhance the social acceptability of this metallurgical operation within the regional and global communities. Optimisation of emission reduction technologies will ensure improved environment ....Mercury emissions from direct iron smelting technology. The proposed research will enhance the environmental performance of the first Australian direct ironmaking industry. This industry will maintain the commitment to environmental responsibility offering cleaner technologies and production. The project will enhance the social acceptability of this metallurgical operation within the regional and global communities. Optimisation of emission reduction technologies will ensure improved environmental standards and awareness of the industry's commitment to improved environmental performance among the local communities. The proposed work will also ensure Australia remains at the forefront of energy and ore utilisation technology, ensuring sustainable resource and environmental management control.Read moreRead less
Particle scale modelling of dense medium cyclones in coal preparation. Australia is the world's biggest coal exporter, and black coal is Australia's largest export, worth around $A13.5 billion annually. Dense medium cyclones process the vast majority of tonnes fed to Australian coal preparation plants, and hence play a critical economic role in coal production. This project aims at providing substantial design and operational improvements through the application of a novel combined continuum and ....Particle scale modelling of dense medium cyclones in coal preparation. Australia is the world's biggest coal exporter, and black coal is Australia's largest export, worth around $A13.5 billion annually. Dense medium cyclones process the vast majority of tonnes fed to Australian coal preparation plants, and hence play a critical economic role in coal production. This project aims at providing substantial design and operational improvements through the application of a novel combined continuum and discrete modelling method. Specifically, the improvements targeted relate to better process and product control, a decrease in unit energy consumption and improvements in productivity, which, together with the research training offered, will further enhance Australia's leading position in global coal industry.Read moreRead less
Optimum control of the in-use performance of talc-based compositions. It is important to improve the quality of their Talcom body powder, baby powder and other cosmetic products involving talc. The areas that can and need to be improved are shining characteristics, assessing the slip properties as well as developing the cosmetic chemistry of talc and other additives. The proposed project will generate: a) simple but reliable test methods for measuring slip and shine, b) methods for control of t ....Optimum control of the in-use performance of talc-based compositions. It is important to improve the quality of their Talcom body powder, baby powder and other cosmetic products involving talc. The areas that can and need to be improved are shining characteristics, assessing the slip properties as well as developing the cosmetic chemistry of talc and other additives. The proposed project will generate: a) simple but reliable test methods for measuring slip and shine, b) methods for control of the physical and chemical characteristics of talc blends, c) mathematical model(s) for property and process control, which is useful to improvement of the final talc properties and in-use service.Read moreRead less