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Can I read Conventional versus microwave-assisted roasting of sulfidic tailings: Mineralogical transformation and metal leaching behavior on EtoBox?
Conventional versus microwave-assisted roasting of sulfidic tailings: Mineralogical transformation and metal leaching behavior by Nor Kamariah; Demian Kalebic; Panagiotis Xanthopoulos; Rosie Blannin; Fernando P. Araujo; Steven-Friso Koelewijn; Wim Dehaen; Koen Binnemans; Jeroen Spooren is a Engineering article available to read on EtoBox.
What is Conventional versus microwave-assisted roasting of sulfidic tailings: Mineralogical transformation and metal leaching behavior about?
Roasting is often required to convert sulfidic minerals into their sulfate and/or oxide forms with the aim to increase the extractability of targeted metals. In this study, sulfidic tailings of Neves Corvo Cu-Zn-Pb-mine (Portugal) underwent conventional roasting (CR) and microwave-assisted roasting (MR) to compare the effect of both heating technologies on the roasting behavior. Upon roasting in air, transformations of mineral phases in the tailings were studied by different techniques using quantitative X-ray diffraction, mineral liberation analysis, Raman spectroscopy and thermogravimetry-differential scanning calorimetry coupled to mass spectrometry. Also, the leaching behavior of elements from the roasted tailings was assessed in water. It was shown that CR and MR induce different reaction pathways for mineral transformations during roasting. While CR led to indirect pyrite oxidation through intermediate sulfate formation, direct pyrite oxidation was the main transformation pathway during MR. This change in reaction pathway can be attributed to the mineral-selective heating induced by microwaves, which in particular accelerates the oxidation rate of pyrite. In agreement with th
Who reads Conventional versus microwave-assisted roasting of sulfidic tailings: Mineralogical transformation and metal leaching behavior?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Nor Kamariah; Demian Kalebic; Panagiotis Xanthopoulos; Rosie Blannin; Fernando P. Araujo; Steven-Friso Koelewijn; Wim Dehaen; Koen Binnemans; Jeroen Spooren
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)