All Outputs (38)

Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning (2017)
Journal Article
Buttress, A., Katrib, J., Batchelor, A., Jones, D., Craig, D., Royal, T., …Kingman, S. (2017). Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning. Minerals Engineering, 109, https://doi.org/10.1016/j.mineng.2017.03.006

Despite over thirty years of work, microwave pre-treatment processes for beneficiation of ores have not progressed much further than laboratory testing. In this paper we present a scaleable pilot-scale system for the microwave treatment of ores capab... Read More about Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning.

Metal-organic frameworks in seconds via selective microwave heating (2017)
Journal Article
Laybourn, A., Katrib, J., Ferrari-John, R. S., Morris, C. G., Yang, S., Udoudo, O., …Schröder, M. (2017). Metal-organic frameworks in seconds via selective microwave heating. Journal of Materials Chemistry A, 5(16), 7333-7338. https://doi.org/10.1039/C7TA01493G

© The Royal Society of Chemistry. Synthesis of metal-organic framework (MOF) materials via microwave heating often involves shorter reaction times and offers enhanced control of particle size compared to conventional heating. However, there is little... Read More about Metal-organic frameworks in seconds via selective microwave heating.

New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction (2017)
Journal Article
Galan, A., Calinescu, I., Trifan, A., Winkworth-Smith, C., Calvo-Carrascal, M., Dodds, C., & Binner, E. (2017). New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction. Chemical Engineering and Processing: Process Intensification, 116, 29-39. https://doi.org/10.1016/j.cep.2017.03.006

We report a direct comparison of microwave heating and conventional heating in solvent extraction by using exactly the same reaction conditions (including heating rate) in the extraction of polyphenols from dried sea buckthorn leaves. We have for the... Read More about New insights into the role of selective and volumetric heating during microwave extraction: investigation of the extraction of polyphenolic compounds from sea buckthorn leaves using microwave-assisted extraction and conventional solvent extraction.

Statistical description of inhomogeneous samples by scanning microwave microscopy (2017)
Journal Article
Monti, T., Udoudo, O., Sperin, K. A., Dodds, C., Kingman, S., & Jackson, T. J. (2017). Statistical description of inhomogeneous samples by scanning microwave microscopy. IEEE Transactions on Microwave Theory and Techniques, 65(6), https://doi.org/10.1109/TMTT.2016.2642940

A quantitative analysis of the dielectric properties of a multiphase sample using a scanning microwave microscope (SMM) is proposed. The method is demonstrated using inhomogeneous samples composed of a resin containing micrometric inclusions of a kno... Read More about Statistical description of inhomogeneous samples by scanning microwave microscopy.

Utilization of dielectric properties assessment to evaluate the catalytic activity and rate of deactivation of heterogeneous catalysts (2017)
Journal Article
Sibianu, T. I., Dimitrakis, G., Katrib, J., Matei, C., Berger, D., Dodds, C., …Irvine, . D. J. (2017). Utilization of dielectric properties assessment to evaluate the catalytic activity and rate of deactivation of heterogeneous catalysts. 00 Journal not listed, 56(8), 1940–1947. https://doi.org/10.1021/acs.iecr.6b04341

Electromagnetic heating for industrial kilning of malt: a feasibility study (2016)
Journal Article
Ferrari-John, R., Katrib, J., Zerva, E., Davies, N., Cook, D. J., Dodds, C., & Kingman, S. (in press). Electromagnetic heating for industrial kilning of malt: a feasibility study. Food and Bioprocess Technology, https://doi.org/10.1007/s11947-016-1849-0

Industrial malting operations use ~800kWh/t of energy to produce the heat required to kiln malt. Electromagnetic heating technologies are suggested as a way to potentially improve the energy efficiency of the kilning processing. In this work, the pot... Read More about Electromagnetic heating for industrial kilning of malt: a feasibility study.

Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores (2016)
Journal Article
Ferrari-John, R., Batchelor, A., Katrib, J., Dodds, C., & Kingman, S. (in press). Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores. International Journal of Mineral Processing, 155, https://doi.org/10.1016/j.minpro.2016.08.011

Continuous high-throughput microwave treatment followed by infrared thermal imaging (MW-IR) has previously been shown to provide attractive separations for a number of porphyry copper ores, leading to rejection of a large proportion of barren fragmen... Read More about Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores.

Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations (2016)
Journal Article
Batchelor, A., Ferrari-John, R., Katrib, J., Udoudo, O., Jones, D., Dodds, C., & Kingman, S. (2016). Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations. Minerals Engineering, 98, 303-327. https://doi.org/10.1016/j.mineng.2016.07.007

Microwave treatment followed by infrared thermal imaging (MW–IRT) has been proposed as a potential excitation-discrimination technique to facilitate sorting of porphyry copper ores. A continuous, high throughput (up to 100t/h), belt–based microwave c... Read More about Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations.

Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials (2016)
Journal Article
Batchelor, A., Ferrari-John, R., Dodds, C., & Kingman, S. (2016). Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials. Minerals Engineering, 98, 328-338. https://doi.org/10.1016/j.mineng.2016.07.009

An experimental pilot plant was constructed, commissioned and operated at a major porphyry copper mine to understand the challenges of microwave infrared thermal (MW-IRT) sorting at scale and to compare batch laboratory performance with pilot-scale c... Read More about Pilot scale microwave sorting of porphyry copper ores: Part 2 – Pilot plant trials.

A tool for predicting heating uniformity in industrial radio frequency processing (2016)
Journal Article
Ferrari-John, R., Katrib, J., Palade, P., Batchelor, A., Dodds, C., & Kingman, S. (in press). A tool for predicting heating uniformity in industrial radio frequency processing. Food and Bioprocess Technology, https://doi.org/10.1007/s11947-016-1762-6

Radio frequency energy is utilised for heating in a wide range of applications, particularly in the food industry. A major challenge of RF processing is non-uniform heating in loads of variable and angular geometry, leading to reduced quality and pro... Read More about A tool for predicting heating uniformity in industrial radio frequency processing.

High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks (2016)
Journal Article
Monti, T., Tselev, A., Ofonime, U., Ivanov, I. N., Dodds, C., & Kingman, S. (2016). High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks. International Journal of Mineral Processing, 151, https://doi.org/10.1016/j.minpro.2016.04.003

Microwave energy was demonstrated to be potentially beneficial for reducing the cost of several steps of the mining process. Significant literature was developed about this topic but few studies are focused on understanding the interaction between mi... Read More about High-resolution dielectric characterization of minerals: a step towards understanding the basic interactions between microwaves and rocks.

Understanding microwave induced sorting of porphyry copper ores (2015)
Journal Article
John, R., Batchelor, A., Ivanov, D., Udoudo, O., Jones, D., Dodds, C., & Kingman, S. (2015). Understanding microwave induced sorting of porphyry copper ores. Minerals Engineering, 84, https://doi.org/10.1016/j.mineng.2015.10.006

Global demand for minerals and metals is increasing. It has been established that the impact of mining and mineral processing operations must be reduced to sustainably meet the demands of a low grade future. Successful incorporation of ore sorting in... Read More about Understanding microwave induced sorting of porphyry copper ores.

Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy (2015)
Journal Article
Udoudo, O., Folorunso, O., Dodds, C., Kingman, S., & Ure, A. (2015). Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy. Minerals Engineering, 82, 84-91. doi:10.1016/j.mineng.2015.03.023

This paper reports on the application of process mineralogy to understand the experimental performance of a microwave based system for the exfoliation of vermiculite type minerals. When montmorillonite type clay structures are exposed to high intensi... Read More about Understanding the performance of a pilot vermiculite exfoliation system through process mineralogy.

Understanding the scabbling of concrete using microwave energy (2015)
Journal Article
Buttress, A., Jones, D., Dodds, C., Dimitrakis, G., Dawson, A., & Kingman, S. (in press). Understanding the scabbling of concrete using microwave energy. Cement and Concrete Research, 75, https://doi.org/10.1016/j.cemconres.2015.04.009

This paper reports on the use of microwave energy to scabble concrete. While the technique is not new, little information exists relating to the controllability of the process, the effect of different types of concrete and the performance and durabil... Read More about Understanding the scabbling of concrete using microwave energy.

Microvawe pyrolysis of biomass: control of process parameters for high pyrolysis oil yields and enhanced oil quality (2015)
Journal Article
Robinson, J., Dodds, C., Stavrinides, A., Kingman, S., Katrib, J., Wu, Z., …Overend, R. (2015). Microvawe pyrolysis of biomass: control of process parameters for high pyrolysis oil yields and enhanced oil quality. Energy and Fuels, 29(3), 1701-1709. https://doi.org/10.1021/ef502403x

The oil yield and quality of pyrolysis oil from microwave heating of biomass was established by studying the behaviour of Larch in microwave processing. This is the first study in biomass pyrolysis to use a microwave processing technique and methodol... Read More about Microvawe pyrolysis of biomass: control of process parameters for high pyrolysis oil yields and enhanced oil quality.

Factors affecting the microwave coking of coals and the implications on microwave cavity design (2014)
Journal Article
Binner, E., Medeira-Munoyerro, M., Huddle, T., Kingman, S., Dodds, C., Dimitrakis, G., …Lester, E. (2014). Factors affecting the microwave coking of coals and the implications on microwave cavity design. Fuel Processing Technology, 125, 8-17. https://doi.org/10.1016/j.fuproc.2014.03.006

The work carried out in this paper assessed how processing conditions and feedstock affect the quality of the coke produced during microwave coke making. The aim was to gather information that would support the development of an optimised microwave c... Read More about Factors affecting the microwave coking of coals and the implications on microwave cavity design.

A review of microwave coal processing (2014)
Journal Article
Binner, E., Lester, E., Kingman, S., Dodds, C., Wu, T., Robinson, J. P., …Mathews, J. P. (2014). A review of microwave coal processing. Journal of Microwave Power and Electromagnetic Energy, 48(1),

This paper reviews the application of microwave energy in coal processing and utilisation. It covers a wide variety of processes including liberation of minerals, coal drying, pre-treatment to improve grindability, liquefaction enhancements and coke... Read More about A review of microwave coal processing.

On DABAL-Me? promoted formation of amides (2013)
Journal Article
Dubois, N., Glynn, D., Mcinally, T., Rhodes, B., Woodward, S., Irvine, D., & Dodds, C. (2013). On DABAL-Me? promoted formation of amides. Tetrahedron, 69(46), https://doi.org/10.1016/j.tet.2013.08.062

The range and utility of DABAL-Me3 couplings of methyl esters and free carboxylic acids with primary and secondary amines under a variety of conditions (reflux, sealed tube, microwave) has been compared for a significant range of coupling partners of... Read More about On DABAL-Me? promoted formation of amides.