NEUTRALISING MINERAL REACTIONS IN ACID MINE DRAINAGE CONTROL. The project addresses the serious environmental problem of acid and toxic element release from iron sulfides in waste rock dumps and tailings storage in the mining industry. Long-term neutralising capacity, currently not tested in laboratory assessments, is available from the reaction of some silicate and aluminosilicate minerals. This potential has not been systematically tested or modelled. The research project aims to understand th ....NEUTRALISING MINERAL REACTIONS IN ACID MINE DRAINAGE CONTROL. The project addresses the serious environmental problem of acid and toxic element release from iron sulfides in waste rock dumps and tailings storage in the mining industry. Long-term neutralising capacity, currently not tested in laboratory assessments, is available from the reaction of some silicate and aluminosilicate minerals. This potential has not been systematically tested or modelled. The research project aims to understand the relative mechanisms and rates for long-term alleviation of acid production with mineral layered and blended combinations. Improved understanding will provide methodology for assessment and control of acid mine drainage.Read moreRead less
SYNCHROTRON MICROPROBE METALLURGICAL CASE STUDIES. The micro-focus capabilities of synchrotron techniques (XRF, XRD, XAS) will enable the high resolution spatial correlations required to advance the understanding of the three systems to be studied:
- Activation for flotation of sphalerite with varying iron contents;
- Arsenic leaching as a function of local structure, phase and mineral assemblage;
- Optimisation of ferrous alloy microstructure on cryogenic treatment.
These case studies have ....SYNCHROTRON MICROPROBE METALLURGICAL CASE STUDIES. The micro-focus capabilities of synchrotron techniques (XRF, XRD, XAS) will enable the high resolution spatial correlations required to advance the understanding of the three systems to be studied:
- Activation for flotation of sphalerite with varying iron contents;
- Arsenic leaching as a function of local structure, phase and mineral assemblage;
- Optimisation of ferrous alloy microstructure on cryogenic treatment.
These case studies have been chosen to specifically target the minerals processing and manufacturing industrial sectors and will be used to increase industrial awareness of the potentials of synchrotron techniques prior to the commissioning of the Australian Synchrotron in 2007.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0345760
Funder
Australian Research Council
Funding Amount
$210,000.00
Summary
Nanoscale Interaction Forces in Particulate and Molecular Systems. We seek to establish a world-class facility for the measurement of nanoscale interaction forces. The ability to measure forces between particles, polymers, emulsion droplets, bubbles, proteins and powders will augment our research capabilities in minerals and material processing, thin film technology, structured surfaces, and in molecular and bio-technology (eg. proteins, DNA, cells, bone, bio-implants). A Molecular Force Probe ....Nanoscale Interaction Forces in Particulate and Molecular Systems. We seek to establish a world-class facility for the measurement of nanoscale interaction forces. The ability to measure forces between particles, polymers, emulsion droplets, bubbles, proteins and powders will augment our research capabilities in minerals and material processing, thin film technology, structured surfaces, and in molecular and bio-technology (eg. proteins, DNA, cells, bone, bio-implants). A Molecular Force Probe (Asylum Research) instrument will allow precise and flexible force measurements on the nano-metre scale. The proposed multi-disciplinary facility will advance research in the areas of engineering, chemistry, pharmacology and biotechnology.
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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.
Advanced Intramedullary Nailing Systems. The proposed project is aimed at developing advanced orthopaedic implants (intramedullary nails and associated locking screws) commonly used for bone fracture repair. These new generation metallic implants will be developed using a comprehensive research approach centred on physico-chemical and mechanical properties investigations. A new generation of intramedullary nailing systems with superior design and mechanical properties (small diameter and high st ....Advanced Intramedullary Nailing Systems. The proposed project is aimed at developing advanced orthopaedic implants (intramedullary nails and associated locking screws) commonly used for bone fracture repair. These new generation metallic implants will be developed using a comprehensive research approach centred on physico-chemical and mechanical properties investigations. A new generation of intramedullary nailing systems with superior design and mechanical properties (small diameter and high strength) and improved bone fixation is the key expected outcome. The knowledge generated in the project is expected to lead to the growth of the Industry Partner (Austofix). Training of a world class researcher in the multidisciplinary field of biomaterials will be an additional outcome.Read moreRead less
Covalent Immobilisation of Growth Factors on Plasma Modified Titanium for Achieving Enhanced Bone Growth and Bonding in Implant Prosthetics. This project is aimed at improving the fixation of titanium implants by combining the surface technologies expertise of University of South Australia and Flinders University with TGR BioSciences's growth factors expertise. Plasma modified and hydroxyapatite-coated implant surfaces will be used for covalent immobilisation of growth factors via tethers with ....Covalent Immobilisation of Growth Factors on Plasma Modified Titanium for Achieving Enhanced Bone Growth and Bonding in Implant Prosthetics. This project is aimed at improving the fixation of titanium implants by combining the surface technologies expertise of University of South Australia and Flinders University with TGR BioSciences's growth factors expertise. Plasma modified and hydroxyapatite-coated implant surfaces will be used for covalent immobilisation of growth factors via tethers with tailored wettability and flexibility. This innovative strategy is expected to yield high retention of growth factor bioactivity and increased bone-implant integration for long-term implant stability. Knowledge, expertise and techniques developed will help TGR BioSciences expanding its research base and business. Training of students in the emerging field of nano-biotechnology will be another major outcome.Read moreRead less
LIPID AND LIPOPROTEIN ADSORPTION AT BIOMATERIALS AND BIO-DIAGNOSTICS INTERFACES. This project aims to investigate molecular mechanisms involved in the formation of undesired biological deposits on synthetic materials and thereby help establish the scientific basis for the rational design of materials with improved compatibility with biological fluids and the engineering of a new generation of biomedical implant devices and bio-diagnostic devices. It is well known that proteins accumulate on synt ....LIPID AND LIPOPROTEIN ADSORPTION AT BIOMATERIALS AND BIO-DIAGNOSTICS INTERFACES. This project aims to investigate molecular mechanisms involved in the formation of undesired biological deposits on synthetic materials and thereby help establish the scientific basis for the rational design of materials with improved compatibility with biological fluids and the engineering of a new generation of biomedical implant devices and bio-diagnostic devices. It is well known that proteins accumulate on synthetic solid surfaces. This project proposes to investigate whether lipids and lipoproteins also play key roles in the initiation of biological adsorption processes. Combined with the study of the interfacial forces responsible, this information will guide the design of preventative strategies.Read moreRead less
Enhanced pigment weathering resistance by coating with high dielectric ceramic. The partner company, Tiwest, based in Western Australia, is a major contributor to the economy, and earns more than $A400m annually in exports. It is the only company in the world that mines, separates, refines and manufactures titania products, including pigments, in one region. The current post-titania particle formation wet-coating process, however, presents a major capital and recurrent cost and necessitates a pi ....Enhanced pigment weathering resistance by coating with high dielectric ceramic. The partner company, Tiwest, based in Western Australia, is a major contributor to the economy, and earns more than $A400m annually in exports. It is the only company in the world that mines, separates, refines and manufactures titania products, including pigments, in one region. The current post-titania particle formation wet-coating process, however, presents a major capital and recurrent cost and necessitates a pigment regrind stage. The research will investigate the development of a highly durable dry-coated pigment utilising a novel high dielectric coating. This development has the potential to ensure the partner company's future competitiveness through reduced processing costs and improved product performance.Read moreRead less
Optimisation of Coal Flotation Performance. The aim of this project is to improve the cleaning of coal by flotation across the whole particle size range with maximum rejection of mineral matter and decreased reagent consumption. The factors that influence coal flotation will be identified and used to predict coal flotation performance. In particular the ultimate separability of coal will be addressed through a unique combination of in- and ex- situ pulp chemical and physical measurements, embedd ....Optimisation of Coal Flotation Performance. The aim of this project is to improve the cleaning of coal by flotation across the whole particle size range with maximum rejection of mineral matter and decreased reagent consumption. The factors that influence coal flotation will be identified and used to predict coal flotation performance. In particular the ultimate separability of coal will be addressed through a unique combination of in- and ex- situ pulp chemical and physical measurements, embedded in a comprehensive model of coal flotation.Read moreRead less
Matching flotation concentrate composition to downstream processing in copper production at the Olympic Dam operations of BHP Billiton. This research is important for the Australian and South Australian economies. There are both large capital and operating costs benefits if a successful and robust mineral separation can be achieved. Being able to separate different copper sulphide minerals in copper concentrates will have global significance. In the particular case of Olympic Dam mine, the imp ....Matching flotation concentrate composition to downstream processing in copper production at the Olympic Dam operations of BHP Billiton. This research is important for the Australian and South Australian economies. There are both large capital and operating costs benefits if a successful and robust mineral separation can be achieved. Being able to separate different copper sulphide minerals in copper concentrates will have global significance. In the particular case of Olympic Dam mine, the impact of being able to separate the copper sulphide minerals at the mineral processing stage is a significant reduction in operating costs, which is a result of reduced ore handling, mining and smelting costs.Read moreRead less