All Outputs (11)

Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor (2024)
Journal Article

Challenges exist to implementing high-temperature microwave processes with changing dielectric properties that achieve uniform processing. This paper presents a new high-temperature hybrid microwave processing system which overcomes these challenges... Read More about Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor.

Microwave digestion of gibbsite and bauxite in sodium hydroxide (2020)
Journal Article

It was hypothesized that bauxite digestion may be improved by using microwave heating as it has been shown in literature that some material processes have improved efficiency. To test this hypothesis, a set of digestion experiments were conducted usi... Read More about Microwave digestion of gibbsite and bauxite in sodium hydroxide.

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.

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.

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 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.

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.

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.

Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment (2016)
Journal Article

In this paper, mineralogy, grain size, dissemination, textural consistency and mineral associations were determined for a commercially exploited porphyry copper ore using a Mineral Liberation Analyser (MLA). The ore was subjected to high power densit... Read More about Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment.

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.

Deriving the ideal ore texture for microwave treatment of metalliferous ores (2015)
Journal Article

High power density microwave treatments on metalliferous ores have historically been shown to reduce ore competency prior to beneficiation at economically feasible energy inputs. However, the relationship between mineralogical textural features and t... Read More about Deriving the ideal ore texture for microwave treatment of metalliferous ores.