Jarosites: A Review

Das, Goutam; Acharya, S.; Anand, S.; Das, R.P.

doi:10.1080/08827509708914135

Cited by 53 publications

(31 citation statements)

References 43 publications

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“…Similar findings were reported by Drouet et al [6], and it is worth noting that Ristić et al [28], by the use of Mössbauer spectroscopy, confirmed the presence of more complex iron oxysulfate species. It is interesting to observe that in hydrothermal conditions, depending on acidic morality, the jarosite was stable up to 230°C [30].…”

Section: Thermal Analysismentioning

confidence: 99%

Investigation of thermal decomposition of jarosite tailing waste

Kerolli–Mustafa¹,

Mandić

Ćurković

et al. 2015

J Therm Anal Calorim

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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. Graphical Abstract 10 20 30 40 50 60 70 80 2θ°/CuKα CPS/a.u. S1 S2 S3 Jarosite sample 1, depth= 20 cm Jarosite sample 2, depth= 1 m Jarosite sample 3, depth= 2 m Jarosite,

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Section: Thermal Analysismentioning

confidence: 99%

Investigation of thermal decomposition of jarosite tailing waste

Kerolli–Mustafa¹,

Mandić

Ćurković

et al. 2015

J Therm Anal Calorim

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show abstract

“…This mineral presents the same structure of alunite KAl 3 (SO 4 ) 2 (OH) 6 (Das et al, 1996). Jarosites formation are acid yielding precipitation reactions and their occurrence have an important influence on the regulation of the pH and dissolved ferric iron in aqueous environments (Dutrizac and Jambor, 2000;Catalan et al, 2002).…”

Section: Introductionmentioning

confidence: 97%

“…Few works are available on the solubility and thermo chemical properties of natro-jarosite, and these have been conducted either at room temperature (Kashkay et al, 1975;Allison et al, 1991;Das et al, 1996) or at temperatures above 90°C (Dutrizac and Kaiman, 1976). There is no available thermo chemical data on sodium-jarosite formation at temperatures in the range 60-80°C, a temperature range which is relevant, for instance, in bioleaching processes which uses thermophiles micro-organisms.…”

Section: Introductionmentioning

confidence: 98%

Solubility of sodium-jarosite and solution speciation in the system Fe(III)–Na–H2SO4–H2O at 70 °C

Casas

Paipa

Godoy

et al. 2007

Journal of Geochemical Exploration

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“…Jarosite minerals are of commercial interest because the precipitation of these compounds has been widely adopted as a means of controlling impurities in hydrometallurgical circuits, especially in the Zn industry (Das et al, 1996). Research on commercial applications of jarosite technology has been focused on ammoniojarosite because of the relatively low cost of NH 4 þ salts (Dutrizac and Jambor, 2000).…”

Section: Introductionmentioning

confidence: 99%