Kerolli-Mustafa, Mihone and Mandić, Vilko and Ćurković, Lidija and Šipušić, Juraj (2016) Investigation of thermal decomposition of jarosite tailing waste - A prerequisite for comprehensive jarosite reuse and waste minimization. = Investigation of thermal decomposition of jarosite tailing waste - A prerequisite for comprehensive jarosite reuse and waste minimization. Journal of thermal analysis and calorimetry, 123 (1). pp. 421-430. ISSN 1388-6150. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2016). Točan broj autora: 4.
Full text not available from this repository.Abstract
During the zinc production process from sulfidic ores, the jarosite residue is produced within the precipitate containing ammonia, iron, zinc and other metal sulfates. The process yield jarosite which has been dumped as a waste despite its acidity presents environmental hazard while high content of iron, zinc, lead, cadmium and other heavy metal compounds additionally presents further utilization possibilities. In this paper, the thermal decomposition of jarosite tailing waste collected in Mitrovica Industrial Park situated in Kosovo is investigated in order to get better understanding of its possible utilization as a source of valuable raw materials. Samples of jarosite tailing waste were taken at depths of 0.2, 1 and 2 m. The samples were characterized by means of powder X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectrometer (SEM/EDS), thermogravimetric analysis (TG) and differential thermal analysis (DTA). The results obtained from XRD confirmed the presence of ammonium jarosite in the investigated tailing waste samples. Results of TG–DTA indicated that the decomposition of jarosite samples occurs in four consecutive stages up to the temperature of 500 °C. On behalf of SEM/EDS analysis, jarosite samples yield poorly defined micron-sized morphology associated with high content of Fe and S, but also Pb, Cd, Zn and As. Composition of jarosite tailing waste was found depth dependent which should facilitate jarosite waste reuse at the investigated site.
| Item Type: | Article (["eprint_fieldopt_article_type_article" not defined]) |
|---|---|
| Keywords (Croatian): | jarosite, decomposition, characterization, thermal analysis |
| Subjects: | TECHNICAL SCIENCE > Basic technical sciences |
| Divisions: | 1000 Department of Materials > 1010 Chair of Materials and Tribology |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | Yes |
| Quartiles: | Q2 (2016) |
| Date Deposited: | 20 Sep 2016 09:36 |
| Last Modified: | 19 Mar 2018 13:25 |
| URI: | http://repozitorij.fsb.hr/id/eprint/6478 |
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