Basic Leaching Behavior of Mechanically Activated Zinc Plant Residue

Turan, M. Deniz; Altundoğan, H. Soner; Boyrazlı, Mustafa; Sarı, Z. Abidin; Nizamoğlu, Hasan; Demiraslan, Aslıhan

doi:10.1007/s12666-019-01687-z

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…In particular, recovery of these metals using economical techniques is considered as a significant benefit due to reduction of metal losses and environmental risk. However, the biggest problem in hydrometallurgical recovery of zinc from ZCR is the presence of zinc ferrite structure (Turan et al 2019).…”

Section: Characterization Of Original Zcrmentioning

confidence: 99%

Characterization and leaching of mechanically activated zinc residue

Turan

2021

Chem. Pap.

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Zinc extraction from zinc-containing residual (ZCR) was examined with the leach of sulfuric acid of original materials and the materials milled in two different mill systems. For this purpose, vibrating ball mill (VBM) and ring mill (RM) were used. In chemical analysis of ZCR, it was determined that it contains a significant amount of zinc, lead, iron and silver and consisted of mostly CaSO4.2H2O, PbO, SiO2, Fe2O3, ZnFe2O4, Al2FeO4 and PbSO4 mineral phases. It was determined in XRD analysis of samples milled at both mills that peak intensity dramatically decreased when compared to original sample.According to comparative characterization analyses of the milled samples, it was determined that through the increasing grinding time, the particles became agglomerated and an increase in grain size occurred. This situation was also supported by N2-BET and SEM analyses.While zinc extraction value of the sample milled for 1 min, which was obtained at 0.5 M H2SO4 at leach temperature of 25 °C, at the solid–liquid rate of 100:1 and during the leach time of 30 min, was 90% and 60% for, respectively, VBM and RM, zinc of 54% was determined to be extracted in the leach of the original sample, under the same conditions.

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Section: Characterization Of Original Zcrmentioning

confidence: 99%

Characterization and leaching of mechanically activated zinc residue

Turan

2021

Chem. Pap.

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“…On the other hand, in other studies, the kinetics of zinc recovery from ZPR using H 2 SO 4 solution has been reported in the literature [22][23][24][25]. Unconventional leaching methods such as microwave leaching [26], pressure leaching [27], bioleaching [28], and mechanical activation [29][30][31][32][33] have been attempted to recover zinc and other valuable metals from ZPR. However, in many studies, it is noted that while there is an increase in the recovery of valuable metals, iron, which reduces the selectivity of the solution, dissolves intensely in the environment.…”

Section: Introductionmentioning

confidence: 99%

Greener and Sustainable Production: Production of Industrial Zinc (II) Acetate Solution and Recovery of Some Metals (Zn, Pb, Ag) from Zinc Plant Residue by Ultrasound-Assisted Leaching

Sarı

2024

J. Sustain. Metall.

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Zinc plant residue (ZPR) contains significant amounts of valuable metal (Zn, Pb, Ag, etc.) compounds, as well as various heavy metals and harmful compounds that pollute the environment. Processing such residues allows for the recovery and reuse of valuable metals, which is crucial for sustainable resource management. This study investigated a two-stage leaching process of Zn, Pb, and Ag recovery from ZPR. The first stage of ultrasonic-assisted leaching of ZPR was applied to produce an industrial selective zinc acetate solution. Leaching experiments were carried out with an ultrasonic device in the presence of acetic acid, known as organic acid. Under optimum leaching conditions, the extraction of Zn and Fe metals was obtained as 76.13% and 1.32% Fe, respectively. According to the Brunauer–Emmett–Teller (BET) analysis results on the original sample and ultrasonic leaching residue (ULR), the BET surface area and micropore area increased. However, the mean adsorption pore width decreased. In the second stage, conventional sodium chloride leaching was applied to recover lead and silver from the remaining solid after the first stage. Under the optimum conditions in this stage, 80.12% of Pb and 96.2% of Ag were extracted. The presence of coordination between Zn2+/AcO− (acetate) and Pb2+/Cl− complexes in the leaching solution was revealed by Raman spectroscopy. Finally, according to the characterization analysis of the final leaching residue, it was determined that iron oxides and silicate species accumulated in the solid. In conclusion, a significant reduction in the rate of pollution and toxic metals in ZPR was noticed. Graphical Abstract

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“…While, after metals recovery from Lead–Zinc Sulfide Tailings, a large amount of leaching residue of Lead–Zinc Sulfide Tailings (LRT) will be produced [ 1 ], and little attention has been paid to its disposal so far. The LRT output was varied based upon the different leaching recovery procedures [ 2 , 3 ], and its storage was stint by its acidity and the heavy metals. LRT was one classical type of solid waste, and its main components are elements such as Si, Ca, Al, and Fe [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Toxicity Risks of Lead-Zinc Sulfide Tailing-Based Construction Materials

et al. 2021

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The leaching residue of the lead–zinc sulfide tailing (LRT) is the only residue generated from the tailing leaching recovery process; it is a typical hazardous material for its high heavy-metal contents and high acidity. Due to the large output of LRT, and because its main components are Ca, Si, and Al, the preparation of building construction materials with LRT was studied. The results showed that when the LRT addition is less than 47%, with the ordinary Portland cement (OPC) and fly ash (FA) added and the curing conditions appropriate, the strength values of the tested specimens meet the M15 Class of the autoclaved lime sand brick standard (GB/T 16753-1997). The carbonization coefficient and drying shrinkage of the specimen were 0.79 and smaller than 0.42, respectively. As the SEM, TG, and XRD analysis have shown, the LRT can chemically react with additives to form stable minerals. The heavy metal contents that were leached out well met the limits in GB5085.3-2007. Based on the high addition of the LRT, the good strength and lower heavy metals were leached out of the prepared test specimen, and the tailing could be reused completely with the leaching recovery and the LRT reuse process. LRT can be used to replace OPC, allowing more sustainable concrete production and improved ecological properties of LRT.

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Basic Leaching Behavior of Mechanically Activated Zinc Plant Residue

Cited by 5 publications

References 11 publications

Characterization and leaching of mechanically activated zinc residue

Characterization and leaching of mechanically activated zinc residue

Greener and Sustainable Production: Production of Industrial Zinc (II) Acetate Solution and Recovery of Some Metals (Zn, Pb, Ag) from Zinc Plant Residue by Ultrasound-Assisted Leaching

Mechanical Properties and Toxicity Risks of Lead-Zinc Sulfide Tailing-Based Construction Materials

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