All Outputs (42)

Selective molecular annealing: in situ small angle X-ray scattering study of microwave-assisted annealing of block copolymers (2017)
Journal Article

Microwave annealing has emerged as an alternative to traditional thermal annealing approaches for optimising block copolymer self-assembly. A novel sample environment enabling small angle X-ray scattering to be performed in situ during microwave anne... Read More about Selective molecular annealing: in situ small angle X-ray scattering study of microwave-assisted annealing of block copolymers.

Microwave assisted hydro-distillation of essential oils from fresh ginger root (Zingiber officinale Roscoe) (2017)
Journal Article

A solvent free in situ microwave hydro-distillation method for extraction of essential oil from fresh ginger root it presented. Extraction was conducted in a TE10n single-mode microwave cavity and variable power 2 kW generator operating at 2.45GHz. T... Read More about Microwave assisted hydro-distillation of essential oils from fresh ginger root (Zingiber officinale Roscoe).

Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing (2017)
Journal Article

© 2017 A pilot scale microwave treatment system capable of treating 10–150t/h of material at 10–200kW was designed, constructed and commissioned in order to understand the engineering challenges of microwave-induced fracture of ores at scale and gene... Read More about Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing.

Calibrated X-ray micro-tomography for mineral ore quantification (2017)
Journal Article

Scanning Electron Microscopy (SEM) based assessments are the most widely used and trusted imaging technique for mineral ore quantification. X-ray micro tomography (XMT) is a more recent addition to the mineralogy toolbox, but with the potential to ex... Read More about Calibrated X-ray micro-tomography for mineral ore quantification.

Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning (2017)
Journal Article

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

© 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

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

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

Electromagnetic heating for industrial kilning of malt: a feasibility study (2016)
Journal Article

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

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

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

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

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

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

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

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

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

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

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.