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
Experimental and numerical studies of the packing of alumina powders. This project is to investigate the packing of alumina powders at both microscopic and macroscopic levels by means of physical and numerical experiments, aiming to develop a comprehensive understanding of the underlying physics and computer models for predicting the packing properties under conditions corresponding to different operations in alumina refining and smelting processes. It will generate an effective method to solve ....Experimental and numerical studies of the packing of alumina powders. This project is to investigate the packing of alumina powders at both microscopic and macroscopic levels by means of physical and numerical experiments, aiming to develop a comprehensive understanding of the underlying physics and computer models for predicting the packing properties under conditions corresponding to different operations in alumina refining and smelting processes. It will generate an effective method to solve the complex packing problems for process and/or property control in alumina/aluminium industry.Read moreRead less
Microdynamic study of the flow of granular materials in bladed mixers. This project aims to develop a comprehensive understanding of granular mixing mechanics in bladed mixers. The study will be carried out by means of newly developed advanced numerical and experimental techniques to generate particle scale information. The flow and mixing behaviour of particles under different conditions will be analysed at both micro- and macro-scopic levels. The research outcomes such as predictive equations ....Microdynamic study of the flow of granular materials in bladed mixers. This project aims to develop a comprehensive understanding of granular mixing mechanics in bladed mixers. The study will be carried out by means of newly developed advanced numerical and experimental techniques to generate particle scale information. The flow and mixing behaviour of particles under different conditions will be analysed at both micro- and macro-scopic levels. The research outcomes such as predictive equations will be tested by simulating and analysing complicated industrial mixing processes; modelling to improve granulation and breakage will be targets. It will significantly improve the design, optimisation and control of mixing processes that are widely used in many industries.Read moreRead less
Particle scale studies of powder mixing in bladed mixers. Powder handling and processing are widely used in both conventional and modern industries but rarely reach more than 60% of design capacity because of poor fundamental understanding. Such operations are important to Australia in view of the heavy dependence on raw materials processing (about 40% of the GNP). This project will tackle the core problems in powder mixing which is a key operation in many industries. Application of the research ....Particle scale studies of powder mixing in bladed mixers. Powder handling and processing are widely used in both conventional and modern industries but rarely reach more than 60% of design capacity because of poor fundamental understanding. Such operations are important to Australia in view of the heavy dependence on raw materials processing (about 40% of the GNP). This project will tackle the core problems in powder mixing which is a key operation in many industries. Application of the research outcomes can lead to better process or product control, a decrease in energy consumption and an improvement in productivity, which is very helpful to maintaining Australia's leading position in resource, energy, process and allied industries.Read moreRead less
The effect of contaminant carbon films on the leaching of gold. A major problem in cyanidation is preg-robbing, which results in severe gold losses to tailings. Too much emphasis has been placed on the blinding and characterisation of free carbon or graphite particles, instead of considering carbon or graphite as a layer on top of other ore particles. It is the aim of this project to investigate the effect of contaminant carbon layers on the leaching of gold from sulphide ores. The understanding ....The effect of contaminant carbon films on the leaching of gold. A major problem in cyanidation is preg-robbing, which results in severe gold losses to tailings. Too much emphasis has been placed on the blinding and characterisation of free carbon or graphite particles, instead of considering carbon or graphite as a layer on top of other ore particles. It is the aim of this project to investigate the effect of contaminant carbon layers on the leaching of gold from sulphide ores. The understanding of the exact role of carbon layers on mineral surfaces in both preg-robbing and leaching is essential to devise process strategies that could lead to improved extraction.Read moreRead less
Fundamental studies of the packing and compaction of fine particles. This project will investigate the fundamentals of the packing and compaction of fine particles at both microscopic and macroscopic levels through a combined theoretical and experimental program. It involves the use of advanced techniques to generate particle scale information, so that a packing and compaction process can be assessed at various time and length scales. It will produce a comprehensive understanding of the underlyi ....Fundamental studies of the packing and compaction of fine particles. This project will investigate the fundamentals of the packing and compaction of fine particles at both microscopic and macroscopic levels through a combined theoretical and experimental program. It involves the use of advanced techniques to generate particle scale information, so that a packing and compaction process can be assessed at various time and length scales. It will produce a comprehensive understanding of the underlying physics, computer models capable of predicting the micromechanic and transport properties of porous media, and an effective means to solve many packing and compaction problems widely encountered in minerals and materials processing 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
Modified activated carbons for recovery of gold from thiosulphate solutions. Thiosulphate is currently being considered by various international mining companies as an environmentally friendly alternative to cyanide for gold extraction. Although little is available in the open literature, most confidential research on recovery from thiosulphate leach slurries has focused on ion-exchange technology. Activated carbon as a more practical sorbent has been ignored completely owing to the general perc ....Modified activated carbons for recovery of gold from thiosulphate solutions. Thiosulphate is currently being considered by various international mining companies as an environmentally friendly alternative to cyanide for gold extraction. Although little is available in the open literature, most confidential research on recovery from thiosulphate leach slurries has focused on ion-exchange technology. Activated carbon as a more practical sorbent has been ignored completely owing to the general perception that it has a very low affinity for gold thiosulphate. On the basis of promising preliminary work, the aim of this project is to develop physically and chemically modified activated carbons with a high affinity for the sterically large gold thiosulphate complex. This project will aim to prove the hypothesis that the graphitic edges of an active carbon should be maximised and the organic active sites minimised for optimal adsorption.Read moreRead less
Separating gold from silica by tailored hydrometallurgical processes. Australia is one of the world's largest producers of gold, and the ability to more efficiently separate gold from its ores will benefit the Australian economy by maximising the value of every tonne of ore which is removed from the ground. Inefficiencies in processing technology can lead to the loss of gold from extraction processes, and the reasons for some of these losses are poorly understood but are believed to be related t ....Separating gold from silica by tailored hydrometallurgical processes. Australia is one of the world's largest producers of gold, and the ability to more efficiently separate gold from its ores will benefit the Australian economy by maximising the value of every tonne of ore which is removed from the ground. Inefficiencies in processing technology can lead to the loss of gold from extraction processes, and the reasons for some of these losses are poorly understood but are believed to be related to interactions between gold and silicate minerals. We will study these interactions with a view towards improving the percentage of gold present in the ores which is able to be extracted and used.Read moreRead less
Special Research Initiatives - Grant ID: SR0354672
Funder
Australian Research Council
Funding Amount
$20,000.00
Summary
ARC Network in Mineral Processing, Extraction and Refining. The Network aims to develop long-term, collaborative research and training links between world-class researchers and research centres in mineral processing, extraction and refining. The goal is to ensure that Australia's major export industry is sustainable, environmentally acceptable and technically at the cutting edge.
Networking key researchers with complementary skills and expertise will enhance research quality, encourage a hol ....ARC Network in Mineral Processing, Extraction and Refining. The Network aims to develop long-term, collaborative research and training links between world-class researchers and research centres in mineral processing, extraction and refining. The goal is to ensure that Australia's major export industry is sustainable, environmentally acceptable and technically at the cutting edge.
Networking key researchers with complementary skills and expertise will enhance research quality, encourage a holistic approach to problem solving and support researchers to tackle big challenges, beyond their usual scope, that will transform the industry. The outcomes will be greater international competitiveness, better resource utilisation, and the incubation of new research leaders, enhancing Australia's minerals R&D infrastructure.Read moreRead less