Research Output per year
Personal profile
Biography
I obtained my Bachelor from the Universiti Sains Malaysia and a PhD from the University of Melbourne in 1989. I have over 110 journal publications and more than 50 refereed conference publications. I received more than google scholar citations 3000 citations and a H-index of 29. Some my research works and data were reproduced in two very well-regarded chemical Engineering Textbook; Rheology and Structure of Complex Fluids (1999) and Colloidal Suspension Rheology (2012).
Roles and responsibilities
I control the suspension rheology by employing surface chemistry tools to regulate the surface or interparticle forces in slurry processing.
Problems encountered and solved:
I) ability to solve gelation problem in the production of ammonium phosphate slurries
ii) ability to reduce the pumping cost of mineral/tailings slurries with low cost composite additives
iii) ability to enhance the performance clay/mineral separation in iron ore slurries.
Future research
I) Clay gel, surface chemistry, microstructure and ageing rheological behaviour
ii) Hydrometallurgical methods of enhancing rare Earth Metal extraction.
iii) Sequential layering of polyelectrolytes on ceramic oxide particles in suspension and its rheological behaviour.
iv) Iron oxide separation methods and purity
ii) Hydrometallurgical methods of enhancing rare Earth Metal extraction.
iii) Sequential layering of polyelectrolytes on ceramic oxide particles in suspension and its rheological behaviour.
iv) Iron oxide separation methods and purity
Funding overview
I have received ARC Linkage, Discovery and LIEF grants over the past 20 years. I have also received funding from industry such as OSD pty ltd, Active Minerals Inc, QNI, WMC Fertilizers, Zinifex Century and a few others
Current projects
I) Rare Earth Extraction
ii) Iron ore processing
iii) Suspension rheology
ii) Iron ore processing
iii) Suspension rheology
Industrial relevance
My research generates new fundamental and applied knowledge that can be used to solve industrial suspension problems in rheology, thickening and consolidation, flotation and other hydrometallurgical processes. Clay suspension processing problems are of particular interest to me. Over the past 10 years, I have conducted extensive research on surface chemistry, rheology, microstructure and ageing properties of a range of clays such as kaolin, bentonite, sodium and calcium montmorillonite and Laponite.
Teaching overview
I) Reaction Engineering/Design
ii) Particle Mechanics and Solids Handling
iii) Particle Technology
iV) Mass Transfer Operation/Process modules
v) Thermodynamics
ii) Particle Mechanics and Solids Handling
iii) Particle Technology
iV) Mass Transfer Operation/Process modules
v) Thermodynamics
Research
Surface Chemistry/force and Rheology of Suspension: Control of suspension processing behaviour;
Microstructure and Rheology of clay and oxide suspensions;
Ageing and Microstructure of Swelling Clay Suspensions - Thickening of low density suspensions;
Coal and biochar slurry fuel preparation;
Experiment and Population balance modelling of flocculation and flocs fragmentation.
Microstructure and Rheology of clay and oxide suspensions;
Ageing and Microstructure of Swelling Clay Suspensions - Thickening of low density suspensions;
Coal and biochar slurry fuel preparation;
Experiment and Population balance modelling of flocculation and flocs fragmentation.
Languages
English
Bahasa and Chinese dialect
Bahasa and Chinese dialect
Keywords
- Optimising fertiliser slurries—monoammonium phosphate (MAP) and diammonium phosphate (DAP), processing in flow reactors via surface chemistry controls
- Optimising clay and mineral suspension processing via surface force control
- Surface chemistry and rheology of emulsions and dispersions
- Rheometry and slip flow
- Clay and ceramic slurries zeta potential and yield stress
- Dewatering and thickening of slimes
- Particle network strength enhancement
- Slip casting
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Research Output
Analytical solutions for multi-stage fractured shale gas reservoirs with damaged fractures and stimulated reservoir volumes
Zeng, J., Li, W., Liu, J., Leong, Y. K., Elsworth, D., Tian, J., Guo, J. & Zeng, F., 1 Apr 2020, In : Journal of Petroleum Science and Engineering. 187, 106686.Research output: Contribution to journal › Article
1
Citation
(Scopus)
Effect of compact spherical potassium 12-tungstosilicate and lithium heteropolytungstate additives on the rheology and surface chemistry of washed spherical and platelet α-Al2O3 suspensions: Patch charge bridging
Zhang, W., Sun, C., Leong, Y. K. & Parsons, D., 15 Jan 2020, In : Powder Technology. 360, p. 937-943Research output: Contribution to journal › Article
A 3-D analytical model for multi-stage fractured shale gas reservoirs with damaged fractures
Zeng, J., Li, W., Liu, J., Leong, Y. K., Elsworth, D., Tian, J. & Guo, J., 2019, Society of Petroleum Engineers - SPE Europec Featured at 81st EAGE Conference and Exhibition 2019. USA: Society of Petroleum Engineers, (Society of Petroleum Engineers - SPE Europec Featured at 81st EAGE Conference and Exhibition 2019).Research output: Chapter in Book/Conference paper › Conference paper
A dynamic fractal permeability model for heterogeneous coalbed reservoir considering multiphysics and flow regimes
Tian, J., Liu, J., Elsworth, D., Leong, Y. K., Li, W. & Zeng, J., 2019, Proceedings of the 7th Unconventional Resources Technology Conference. USA: Unconventional Resources Technology Conference (URTEC), 18 p. 250Research output: Chapter in Book/Conference paper › Conference paper
Effect of sequentially adsorbed multilayers, citric acid(CA)-PEI-CA-PEI and PEI-CA-PEI-CA, on the surface chemistry and rheology of spherical α-alumina suspensions
Zhang, W., Leong, Y. K., Sun, C., Fan, H. & Zhang, X., 3 Aug 2019, In : Journal of Dispersion Science and Technology. 40, 8, p. 1179-1188 10 p.Research output: Contribution to journal › Article
2
Citations
(Scopus)
Projects
- 7 Finished
Integrated Magnetic Resonance Gas and Oil Analyser
Johns, M., May, E., St Pierre, T., Leong, Y., Boxall, J., Arns, C., Zhu, J., Grice, K., Wu, J. & Evans, B.
1/01/11 → 31/12/11
Project: Research
Integrated Magnetic Resonance Gas and Oil Analyser
Johns, M., May, E., St Pierre, T., Leong, Y., Boxall, J., Arns, C., Zhu, J., Grice, K., Wu, J. & Evans, B.
1/01/11 → 31/12/11
Project: Research
Joint Effort in Developing a National Centre of Excellence in Gas Processing & Utilisation
Zhang, D., May, E., Rufford, T., Yang, H., Liu, Y., Chua, H., Leong, Y., Chan, Y., Bussemaker, M., Tong, C., Zhu, J., Rudolph, V., Diniz da Costa, J., Steel, K., Shukla, P. & Wei Zhou, W.
University of Western Australia
1/01/11 → 31/12/11
Project: Research
Integrated Magnetic Resonance Gas and Oil Analyser
Johns, M., May, E., St Pierre, T., Leong, Y., Boxall, J., Arns, C., Zhu, J., Grice, K., Wu, J. & Evans, B.
1/01/11 → 31/12/11
Project: Research
Integrated Magnetic Resonance Gas and Oil Analyser
Johns, M., May, E., St Pierre, T., Leong, Y., Boxall, J., Arns, C., Zhu, J., Grice, K., Wu, J. & Evans, B.
1/01/11 → 31/12/11
Project: Research