Investigation of Coupled Processes During Underground Coal Gasification. Coal values could be extracted directly from coal seams through underground coal gasification (UCG) without the need for mining. The practical application of UCG is restricted primarily by lack of satisfactory quantitative descriptions of the processes involved. The proposed study will address this critical issue through an intergated approach of computer modelling and its verification against real field trials.
A novel low-energy process route for primary copper production utilising synergistic hydro- and pyro-metallurgical processes. With increasing demand for copper metal, there is an urgent need to find new ways to efficiently treat lower grade ores. The new process offers a way of significantly reducing energy consumption and greenhouse gas emissions in primary copper production and making more efficient use of the world's copper resources.
Enhanced Fractionation of Mineral Particles According to Density. Aims: -to achieve a significant advance in the hydrodynamic fractionation of particles on the basis of density, and develop an algorithm to deconvolve the fractionation data to produce the underlying density distribution of the particles. Significance: This density distribution, which is used in resource assessment, plant design, and process evaluation in mineral processing, is currently produced using toxic, and environmentally d ....Enhanced Fractionation of Mineral Particles According to Density. Aims: -to achieve a significant advance in the hydrodynamic fractionation of particles on the basis of density, and develop an algorithm to deconvolve the fractionation data to produce the underlying density distribution of the particles. Significance: This density distribution, which is used in resource assessment, plant design, and process evaluation in mineral processing, is currently produced using toxic, and environmentally damaging heavy liquids, despite the emergence of alternative mineral analysers. Expected Outcomes: -a safe, cost effective basis for generating the density distribution. Benefits: -increasing mineral resource recovery through improved access to critical data, while eliminating the need for the toxic heavy liquids.
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Transport of metals in vapours and brines: new insights into the formation of the Earth's mineral deposits. Traditional models for the formation of hydrothermal ore deposits assume that aqueous fluids transported the metals. This view is challenged by new observations showing that gold and copper are preferentially enriched in vapours coexisting with salty aqueous fluids in some deposits. This project uses state-of-the-art techniques and develops new instruments to measure experimentally the par ....Transport of metals in vapours and brines: new insights into the formation of the Earth's mineral deposits. Traditional models for the formation of hydrothermal ore deposits assume that aqueous fluids transported the metals. This view is challenged by new observations showing that gold and copper are preferentially enriched in vapours coexisting with salty aqueous fluids in some deposits. This project uses state-of-the-art techniques and develops new instruments to measure experimentally the partitioning of metals between solid, fluid and vapour at temperatures typical for natural ore deposits (350-550C, pressures varying for vapour saturated to 1 kb). By improving our understanding of metal transport within the Earth's crust, these data will lead to improved models and technologies for exploring and processing base and precious metals.Read moreRead less
Understanding Droplet Interactions in Solvent Extraction. The aim of this project is to develop an understanding of how organic drops behave in a water phase. This would enable a new generation of more detailed mechanistic models to be used to optimise the performance of Australia’s large investment in solvent extraction technology. The solvent extraction industry is undergoing a transformation with the introduction of short-contact-time contactors to reduce solvent inventory and a change to mor ....Understanding Droplet Interactions in Solvent Extraction. The aim of this project is to develop an understanding of how organic drops behave in a water phase. This would enable a new generation of more detailed mechanistic models to be used to optimise the performance of Australia’s large investment in solvent extraction technology. The solvent extraction industry is undergoing a transformation with the introduction of short-contact-time contactors to reduce solvent inventory and a change to more sustainable solvents. The project aims to develop efficient and innovative contactors for this industry and to develop confidence in the application of new contactor technology offering enhanced competitive performance to Australia's minerals industry.Read moreRead less
Influence of additives in solvent extraction processes. This project directly supports innovative change in the solvent extraction industry in Australia. This industry is responsible for generating in excess of $600 million dollars annually of export earnings for Australia. This project aims directly at developing efficient and innovative processes for this industry.
Inorganic membrane percrystallisation in hydrometallurgy. This project aims is to develop the scientific and engineering basis for a new Australian inorganic membrane technology for the crystallisation of metal compounds. Inorganic membrane percrystallisation is a recent breakthrough promising improved productivity, energy savings and the ability to tailor particle properties. This project will develop a mechanistic model encompassing solution transport phenomena, crystal nucleation-growth-agglo ....Inorganic membrane percrystallisation in hydrometallurgy. This project aims is to develop the scientific and engineering basis for a new Australian inorganic membrane technology for the crystallisation of metal compounds. Inorganic membrane percrystallisation is a recent breakthrough promising improved productivity, energy savings and the ability to tailor particle properties. This project will develop a mechanistic model encompassing solution transport phenomena, crystal nucleation-growth-agglomeration and engineering process parameters affecting single and binary salt systems. This model will provide a basis for technology development benefiting Australia, such as the improvement of the production of nickel sulphate for the growing battery materials market.Read moreRead less
Three-dimensional flotation of fine particles. Three-dimensional flotation of fine particles. This project aims to research three-dimensional flotation of fine particles under both batch and continuous steady state conditions. In flotation, fine hydrophobic particles adhere to the two-dimensional surface of rising air bubbles, forming concentrate. In three-dimensional flotation, however, the particles adhere to and become embedded in a novel binder, forming a highly buoyant product. The process ....Three-dimensional flotation of fine particles. Three-dimensional flotation of fine particles. This project aims to research three-dimensional flotation of fine particles under both batch and continuous steady state conditions. In flotation, fine hydrophobic particles adhere to the two-dimensional surface of rising air bubbles, forming concentrate. In three-dimensional flotation, however, the particles adhere to and become embedded in a novel binder, forming a highly buoyant product. The process is very selective and arguably 1000 times faster than conventional flotation. The project is expected to provide the knowledge required to achieve scale-up, so the technology can be used to recover high value product from tailings waste, eliminating the capital impediment and possibly transforming the entire mining industry.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.
Maximizing the kinetics of flotation processes. The purpose of this project is to develop a new flotation technology that can be operated at feed rates vastly higher than existing technologies. The technology will be applicable to low grade feeds often discarded to tailings, delivering billions of dollars in additional exports of Australian resources and contributing to the growth in the mining services sector.