2015
DOI: 10.1016/j.mineng.2015.10.006
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Understanding microwave induced sorting of porphyry copper ores

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Cited by 32 publications
(24 citation statements)
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“…It is suggested that this is due to the higher proportion of microwave absorbent phases in these ores , which may be contained in as little as 30% ore the particles. (John et al, 2015). Due to the random distribution of the particles in the applicator, the distribution if heated phases is very different on each repeat measurement of the scatting parameters, because the ore is replaced with new material each time by jogging the apron feeder.…”
Section: Optimum Short Positionmentioning
confidence: 99%
“…It is suggested that this is due to the higher proportion of microwave absorbent phases in these ores , which may be contained in as little as 30% ore the particles. (John et al, 2015). Due to the random distribution of the particles in the applicator, the distribution if heated phases is very different on each repeat measurement of the scatting parameters, because the ore is replaced with new material each time by jogging the apron feeder.…”
Section: Optimum Short Positionmentioning
confidence: 99%
“…These samples were from the batch of rocks used for a microwave heating test work, which results were recently reported by John, et al (2015). The heated phase selected for that investigation was a copper concentrate sample.…”
Section: Methodsmentioning
confidence: 99%
“…John et al (2015) and Rizmanoski and Jokovic (2016) conducted MW-IRT trials on synthetic ore particles to determine the effects of microwaveabsorbent mineral dissemination on the surface thermal response observed. It was elucidated that the coarser the microwave-absorbent grains (and/or the greater the degree of clustering of finer grains) and the closer to the surface they occur, the higher the surface temperature measurement recorded for a given equilibration time after treatment.…”
Section: Fragment Presentationmentioning
confidence: 99%
“…Investigations combining microwave heating with infrared thermal imaging (MW-IRT) have been carried out since the 1980s by a number of authors on lead-zinc sulphide, gold, copper sulphide, molybdenum sulphide and iron ores (Berglund and Forssberg, 1980;Ghosh et al, 2013;Ghosh et al, 2014;John et al, 2015;Jokovic et al, 2014;Rizmanoski and Jokovic, 2016;Sivamohan and Forssberg, 1991;Van Weert and Kondos, 2007;Van Weert et al, 2009;Wotruba and Scharrenbach, 2007). The authors reported varying degrees of sortability performance related to the mineralogy of the samples and the distribution of valuable minerals throughout the individual fragments analysed, demonstrating the applicability of microwave treatment to sorting applications.…”
Section: Introductionmentioning
confidence: 99%