The development of resin and polymer based technologies for the recovery of copper and cyanide from gold processing tailings streams. This is a fundamental study on the use of resin and polymer-based ligands to recover copper and cyanide from gold cyanidation tailings. This process is environmentally more acceptable than other recovery methods, as it does not involve the use or generation of harmful species, such as HCN. It also has the advantage that copper metal and cyanide are recovered as pr ....The development of resin and polymer based technologies for the recovery of copper and cyanide from gold processing tailings streams. This is a fundamental study on the use of resin and polymer-based ligands to recover copper and cyanide from gold cyanidation tailings. This process is environmentally more acceptable than other recovery methods, as it does not involve the use or generation of harmful species, such as HCN. It also has the advantage that copper metal and cyanide are recovered as products from the copper cyanide containing streams. Thus the proposed project has the potential to substantially alter the gold recovery process, particularly in an era where environmental and public concerns exist over the discharge of cyanide species into tailings dams.Read moreRead less
Optimising gold recovery whilst minimising cyanide and copper discharges during the processing of gold ores containing copper. The presence of copper is a major problem in Australia's gold industry. We have proposed an innovative method for treating copper containing ores which eliminates discharge of copper and cyanide to the tailings dam. The copper is recovered, and the cyanide is either recycled or destroyed within the plant. Another advantage of the process is a reduction in the cyanide req ....Optimising gold recovery whilst minimising cyanide and copper discharges during the processing of gold ores containing copper. The presence of copper is a major problem in Australia's gold industry. We have proposed an innovative method for treating copper containing ores which eliminates discharge of copper and cyanide to the tailings dam. The copper is recovered, and the cyanide is either recycled or destroyed within the plant. Another advantage of the process is a reduction in the cyanide requirement, hence reducing the risk associated with cyanide transport and storage. Thus the proposed project has the potential to substantially improve the gold recovery process, particularly in an era where environmental and public concerns exist over the use of cyanide.Read moreRead less
Redox processes in Bayer liquors. Alumina, and the aluminium produced from it, are amongst Australia's most important mineral commodities, earning about $8 billion p.a. in exports. However, ongoing technological improvements are needed for Australian producers to remain globally competitive. This project addresses a key problem in alumina production - the behaviour of organic impurities - which will help to increase industrial productivity and reduce energy consumption. Insights gained from this ....Redox processes in Bayer liquors. Alumina, and the aluminium produced from it, are amongst Australia's most important mineral commodities, earning about $8 billion p.a. in exports. However, ongoing technological improvements are needed for Australian producers to remain globally competitive. This project addresses a key problem in alumina production - the behaviour of organic impurities - which will help to increase industrial productivity and reduce energy consumption. Insights gained from this research will also minimize the environmental and occupational health impacts of various process emissions, making the industry more sustainable.Read moreRead less
Development of an efficient oxygen-thiosulfate process for the recovery of gold from ores. Gold is currently recovered from the ore by a cyanide leaching process. This high risk procedure is used because there is currently no safe alternative. The research we propose to undertake will investigate a novel thiosulfate-oxygen process to dissolve gold. Successful completion of the project will identify the mechanism of the process and could lead to the replacement of the highly toxic cyanide with th ....Development of an efficient oxygen-thiosulfate process for the recovery of gold from ores. Gold is currently recovered from the ore by a cyanide leaching process. This high risk procedure is used because there is currently no safe alternative. The research we propose to undertake will investigate a novel thiosulfate-oxygen process to dissolve gold. Successful completion of the project will identify the mechanism of the process and could lead to the replacement of the highly toxic cyanide with the non toxic thiosulfate. Thus the proposed project has the potential to substantially alter the gold recovery process, particularly in an era where environmental and public concerns exist over the use of cyanide.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0667984
Funder
Australian Research Council
Funding Amount
$210,000.00
Summary
Near Excitation Raman Micro Spectrometer. The unique properties of nanomaterials have recently been fully realized, and their use has resulted in new technologies, transforming industrial processes. Our research teams at Griffith, Monash and Queensland University of Technology develop optimal, nanostructured materials for technological applications. To maintain a competitive edge in this research, we require a near excitation Raman spectrometer. Used in-situ, it rapidly yields structural infor ....Near Excitation Raman Micro Spectrometer. The unique properties of nanomaterials have recently been fully realized, and their use has resulted in new technologies, transforming industrial processes. Our research teams at Griffith, Monash and Queensland University of Technology develop optimal, nanostructured materials for technological applications. To maintain a competitive edge in this research, we require a near excitation Raman spectrometer. Used in-situ, it rapidly yields structural information on the materials, enabling their formation and function to be better understood. This information will allow enhanced design and synthesis of nanomaterials, producing advanced products and processes for the energy, biotechnology, environmental and mining fields.Read moreRead less
Advanced studies on the hydrometallurgy and electrochemistry of primary copper sulphide ores. The exploitation of low quality copper ores is hampered by our poor understanding of the fundamental chemistry involved. In this project, advanced techniques will be developed to understand the leaching of copper to a level of detail not obtained before. This will allow mining companies to extract copper with minimal environmental footprint.
Medium temperature electrolysis for low-cost carbon dioxide utilization. Carbon dioxide is a notorious greenhouse gas. Its capture, and subsequent storage or utilization, is a major focus not only for researchers, but also for governments trying to meet their obligations of the Paris Agreement on climate change and for industries managing their legal and social responsibilities. This project aims to develop commercially viable medium temperature electrolysers to convert carbon dioxide into value ....Medium temperature electrolysis for low-cost carbon dioxide utilization. Carbon dioxide is a notorious greenhouse gas. Its capture, and subsequent storage or utilization, is a major focus not only for researchers, but also for governments trying to meet their obligations of the Paris Agreement on climate change and for industries managing their legal and social responsibilities. This project aims to develop commercially viable medium temperature electrolysers to convert carbon dioxide into value added chemicals using electricity from renewable sources. New design principles will be developed to generate highly active and selective catalysts with long-term stability. These electrolyzers will be integrated with carbon capture technologies to directly utilize captured carbon dioxide with high energy efficiency.Read moreRead less
Engineering the kinetic stability of alloys for advanced stainless material development. A framework for understanding and designing metals and alloys with kinetic stability in mind will allow for discovery and breakthrough science to underpin technological innovation. This work has potential benefits for multiple industry sectors, with the ultimate intent of developing advanced materials for use in transport, construction, energy generation and medicine; all sectors of which can improve our qua ....Engineering the kinetic stability of alloys for advanced stainless material development. A framework for understanding and designing metals and alloys with kinetic stability in mind will allow for discovery and breakthrough science to underpin technological innovation. This work has potential benefits for multiple industry sectors, with the ultimate intent of developing advanced materials for use in transport, construction, energy generation and medicine; all sectors of which can improve our quality of life, whilst also addressing the multi-billion dollars of loss attributed to metallic corrosion each year. Such work will also benefit Australia through the development of a strategic international capability in a highly interdisciplinary field.Read moreRead less
A fundamental study of the simultaneous gold dissolution during the alkaline oxidation of sulfide containing refractory gold ores and concentrates. The gold industry is Australia's second largest export earner and therefore is immensely important to the Australian economy. The proposed project aims to develop an environmentally acceptable process for treating gold containing sulfidic ores and concentrates that are not amenable to conventional cyanidation. This would provide an enormous benefit t ....A fundamental study of the simultaneous gold dissolution during the alkaline oxidation of sulfide containing refractory gold ores and concentrates. The gold industry is Australia's second largest export earner and therefore is immensely important to the Australian economy. The proposed project aims to develop an environmentally acceptable process for treating gold containing sulfidic ores and concentrates that are not amenable to conventional cyanidation. This would provide an enormous benefit to both the Australian gold industry and the Australian environment. A successful outcome in the research project would also lead to export earnings emanating from technology transfer and enhance Australia's reputation for high quality research and academic endeavours.Read moreRead less
The flotation of oxide minerals using hydroxamate collectors. Australian and world mineral resources are declining in quality as we exploit the richest sulfidic ore deposits. This is increasing our reliance on concentration and beneficiation processes to improve the economics of the selective recovery of minerals from lower grade and, increasingly, oxide or lateritic ore bodies. In addition, greater emphasis is being placed on our environmental stewardship and the need to remove hazardous mater ....The flotation of oxide minerals using hydroxamate collectors. Australian and world mineral resources are declining in quality as we exploit the richest sulfidic ore deposits. This is increasing our reliance on concentration and beneficiation processes to improve the economics of the selective recovery of minerals from lower grade and, increasingly, oxide or lateritic ore bodies. In addition, greater emphasis is being placed on our environmental stewardship and the need to remove hazardous material from the concentrate streams. This proposal will develop improved methods and techniques that will facilitate better, cleaner separations and recovery of the valuable oxide mineral components using Australian-developed flotation reagents.Read moreRead less