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Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing (2017)
Journal Article
Batchelor, A., Buttress, A., Jones, D., Katrib, J., Way, D., Chenje, T., …Kingman, S. (2017). Towards large scale microwave treatment of ores: Part 2 - Metallurgical testing. Minerals Engineering, 111, doi:10.1016/j.mineng.2017.05.003. ISSN 0892-6875

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 generate la... Read More

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, doi:10.1016/j.mineng.2017.03.006. ISSN 0892-6875

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

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, doi:10.1016/j.minpro.2016.08.011. ISSN 0301-7516

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

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, doi:10.1016/j.mineng.2016.07.009. ISSN 0892-6875

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

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, doi:10.1016/j.mineng.2016.07.007. ISSN 0892-6875

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

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, doi:10.1007/s11947-016-1762-6. ISSN 1935-5130

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

Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment (2016)
Journal Article
Batchelor, A., Jones, D., Plint, S., & Kingman, S. (2016). Increasing the grind size for effective liberation and flotation of a porphyry copper ore by microwave treatment. Minerals Engineering, 94, doi:10.1016/j.mineng.2016.05.011. ISSN 0892-6875

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

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, doi:10.1016/j.mineng.2015.10.006. ISSN 0892-6875

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

Deriving the ideal ore texture for microwave treatment of metalliferous ores (2015)
Journal Article
Batchelor, A., Jones, D., Plint, S., & Kingman, S. (2015). Deriving the ideal ore texture for microwave treatment of metalliferous ores. Minerals Engineering, 84, doi:10.1016/j.mineng.2015.10.007. ISSN 0892-6875

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