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
Improving the Performance of Lead Anodes in the Electrowinning of Copper. The aim of this project is the development of a fundamental understanding of the role of certain metal ions such as cobalt and manganese in modifying the electrochemical and corrosion performance of lead alloy materials used as anodes in the electrowinning of base metals such as copper, zinc and nickel.
The development of improved anodes will be of major benefit to the industry in terms of anode cost and particularly ener ....Improving the Performance of Lead Anodes in the Electrowinning of Copper. The aim of this project is the development of a fundamental understanding of the role of certain metal ions such as cobalt and manganese in modifying the electrochemical and corrosion performance of lead alloy materials used as anodes in the electrowinning of base metals such as copper, zinc and nickel.
The development of improved anodes will be of major benefit to the industry in terms of anode cost and particularly energy consumption. This project will lead to a better understanding of the performance of these anodes and could result in the design of improved anode materials and/or operating strategies.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
Electrocatalytic Generation of Ammonia from Air and Water. The aim is to directly convert nitrogen under mild conditions, using renewable power, to form ammonia for fertilisers and fuels, enabled by new, nanostructured, electrocatalysts based on single-sheet and composite materials. Unlike nitrogen fixation using a three-electrode system, the project will use a novel mixed gas- and liquid-phase electrocatalytic nitrogen reduction two-electrode reactor. Based on fuel cells, it is designed to acce ....Electrocatalytic Generation of Ammonia from Air and Water. The aim is to directly convert nitrogen under mild conditions, using renewable power, to form ammonia for fertilisers and fuels, enabled by new, nanostructured, electrocatalysts based on single-sheet and composite materials. Unlike nitrogen fixation using a three-electrode system, the project will use a novel mixed gas- and liquid-phase electrocatalytic nitrogen reduction two-electrode reactor. Based on fuel cells, it is designed to accelerate the naturally sluggish nitrogen reduction reaction, NRR, significantly improving the reaction rate and selectivity. The project will also gain atomic-level understanding of the mechanism of NRR, based on in-situ spectroscopies used under operando conditions, e.g., Raman or X-ray absorption.Read moreRead less
Heat capacities of Bayer liquors to 300C. Alumina refining is one of Australia's most important industries, earning ~$6 billion per year export income. However, major productivity gains are required for Australian producers to remain globally competitive. More accurate thermodynamic calculations, covering the full plant operating range, are seen by the industry as an important way to increase productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must e ....Heat capacities of Bayer liquors to 300C. Alumina refining is one of Australia's most important industries, earning ~$6 billion per year export income. However, major productivity gains are required for Australian producers to remain globally competitive. More accurate thermodynamic calculations, covering the full plant operating range, are seen by the industry as an important way to increase productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must extend current theoretical understanding and establish an experimental capability, hitherto unavailable in Australia, for measuring heat capacities and densities of solutions to temperatures as high as 300 C.Read moreRead less
Modelling Bayer Plant Liquors for Industrial Process Simulations. Alumina refining is one of Australia's most important industries but it exists within an increasingly competitive global market. More meaningful computer simulations of the Bayer process, covering conditions far beyond current plant operating ranges, are seen by Australian producers as an important way to increase future productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must develop ....Modelling Bayer Plant Liquors for Industrial Process Simulations. Alumina refining is one of Australia's most important industries but it exists within an increasingly competitive global market. More meaningful computer simulations of the Bayer process, covering conditions far beyond current plant operating ranges, are seen by Australian producers as an important way to increase future productivity, minimise energy consumption and cut greenhouse emissions. To achieve these aims, we must develop hitherto unavailable modelling capabilities for predicting the behaviour of Bayer plant liquors. The more robust thermodynamic models developed in this project will enable more realistic simulations, which are a prerequisite for innovative process design and optimisation.Read moreRead less
Reforming of Liquid Hydrocarbon Fuels for Application in Solid Oxide Fuel Cells Technology. The project will aim at developing a fuel processing system for solid oxide fuel cells which will have the advantages of being fuel flexible through the conversion of liquid fuels (gasoline, LPG, diesel) for application in small to medium stationary power generation systems. This investigation will also generate fundamental information and understanding concerning the catalytic reforming of liquid hydroca ....Reforming of Liquid Hydrocarbon Fuels for Application in Solid Oxide Fuel Cells Technology. The project will aim at developing a fuel processing system for solid oxide fuel cells which will have the advantages of being fuel flexible through the conversion of liquid fuels (gasoline, LPG, diesel) for application in small to medium stationary power generation systems. This investigation will also generate fundamental information and understanding concerning the catalytic reforming of liquid hydrocarbon fuels to produce adequate feeds for SOFCs. These distributed energy devices are of high efficiency and with a novel technology the industrial partner will aim to offer products with high value propositions in the critical areas of price, reliability and service.Read moreRead less
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
High Efficiency Electrochemical Cells. This project will study a recently developed, energy efficient ‘capillary-fed’ electrochemical cell architecture in the facilitation of various electro-energy and electro-synthetic transformations. The new cell architecture will be examined as a hydrogen-oxygen fuel cell and as a cell for extracting pure hydrogen from a 5-10% mixture of hydrogen in methane (natural gas), amongst others. The work seeks to improve upon the electrochemical performance of the b ....High Efficiency Electrochemical Cells. This project will study a recently developed, energy efficient ‘capillary-fed’ electrochemical cell architecture in the facilitation of various electro-energy and electro-synthetic transformations. The new cell architecture will be examined as a hydrogen-oxygen fuel cell and as a cell for extracting pure hydrogen from a 5-10% mixture of hydrogen in methane (natural gas), amongst others. The work seeks to improve upon the electrochemical performance of the best commercial and academic cells of such types, if possible. In increasing the efficiency with which renewable electricity can be converted into renewable hydrogen and back, this project will support the national priority of net-zero carbon emissions by 2050.Read moreRead less