Sulfidation roasting of zinc leaching residue with pyrite for recovery of zinc and iron

Min, Xin; Jiang, Guanghua; Wang, Yunyan; Zhou, Boting; Xue, Ke; Ke, Yanxiong; Xu, Qiujing; Wang, Jingwen; Ren, Hongzheng

doi:10.1007/s11771-020-4359-1

Cited by 12 publications

(3 citation statements)

References 25 publications

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“…According to the results, under the optimum conditions, zinc and copper leaching rates were found to be 98.1% and 98.7%, respectively. Xiao-bo et al [25] proposed a three-step process for extracting iron and zinc from leaching tailings. As a result, concentrates containing 52% zinc and 32% iron were obtained in the otation and magnetite separation processes.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive evaluation on leaching of non-ferrous metals from polymetallic tailings

Javanshir

Arasteh

Mohebbi

et al. 2023

Preprint

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There is a significant deficit between the supply and demand of critical metals, leading to look for new ways to get high-value elements from mine tailings. In this study, the atmospheric leaching method was applied to extract valuable elements, including copper, zinc, and copper oxide, from a polymetallic ore that was considered a tailing in the mining site. The sample contained 3.28% copper, 13.74% iron, 1.7% zinc, 5.71% lead, and 1.98% oxidized copper. The effect of time, stirrer speed, acid concentration, particle size, and temperature were investigated on the leaching of Cu, CuO, and Zn. The optimum recommended conditions for leaching of polymetallic ore were: acid concentration 0.5 mol L− 1, %solid 25%, and leaching time 1 h. Leaching recoveries of 63.5% for Cut, 97.5% for CuO, 1% for Fe, and 100% for Zn can be achieved under the optimum conditions. The results for the dissolution of metals agreed with mineralogical studies.

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Section: Introductionmentioning

confidence: 99%

A comprehensive evaluation on leaching of non-ferrous metals from polymetallic tailings

Javanshir

Arasteh

Mohebbi

et al. 2023

Preprint

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“…Pyrite is a kind of iron ore with a NaCl-type crystal structure, which is often employed for the reduction of pyrolusite because of its overall strong reducing properties owing to the low-valence state of both Fe and S. 52,53 The addition of pyrite makes it possible to efficiently extract manganese from lowgrade pyrolusite by oxidation roasting 54,55 and also allows zinc leaching residues to recover Zn and Fe by sulfide roasting. 56 Additionally, the extraction of precious metals gold and silver by chloride roasting cannot be achieved without the involvement of pyrite. 57 Combining the advantages of MA and pyrite, this work proposes a novel strategy to promote the preferential extraction of lithium from spent LiNi x Co y Mn z O 2 (NCM) powder via ball milling along with oxidative roasting.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency Preferential Extraction of Lithium from Spent Lithium-Ion Battery Cathode Powder via Synergistic Treatment of Mechanochemical Activation and Oxidation Roasting

Su,

Zhou,

Liu

et al. 2023

ACS Sustainable Chem. Eng.

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With the increasing demand for lithium, the improvement of lithium recovery efficiency from spent lithium-ion batteries (LIBs) has become a popular topic to meet both resource and environmental requirements. Here, by using pyrite as a novel reducing agent, more than 99.9% of lithium can be preferentially and selectively extracted into weakly alkaline solutions after the synergistic treatment of mechanochemical activation (MA) and oxidation roasting (OR). Mechanochemical activation can impart a very high reactivity to the mixture of cathode powder and pyrite, which facilitates the subsequent oxidative roasting and selective recovery of lithium. Many physical properties of ball-milled powder have been investigated to characterize its superiority, and the thermodynamic behavior of the roasting process has also been explored to clarify the specific reaction course. Of particular importance, the environmental implications and economics of the overall process have been explained in detail to show that the whole recovery process is promising.

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“…Some authors have studied other leaching methods for the processing of zinc ferrite residue by sulfuric acid [ 11 , 12 , 13 ], di-2-ethylhexyl phosphoric acid [ 14 ], sodium hydroxide [ 15 , 16 ], chloride solutions [ 17 , 18 , 19 ], and even by ionic liquids [ 20 ] and deep-eutectic solvents [ 21 ]. The methods using pyrometallurgical processing of such materials by reduction roasting [ 22 , 23 , 24 , 25 ], sulfiding roasting [ 26 , 27 ], roasting with the addition of sodium compounds [ 28 , 29 , 30 , 31 ], chloride volatilization process [ 32 ] were also reported. However, these methods are still hardly applicable in the industrial practice.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Study on the Mechanism of Sulfating Roasting of Zinc Plant Residue with Iron Sulfates

et al. 2021

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Zinc plant residue (ZPR) is a secondary material generated during hydrometallurgical zinc production that contains considerable contents of valuable elements such as Zn, Cu, Fe, Pb, Cd, Ag, In, Ga, Tl. Zinc, copper and accompanying elements in ZPR are in different minerals, mainly in the ferrites. A promising approach for recycling ZPR is the sulfating roasting using iron sulfates followed by water leaching. In this study, the composition of ZPR and the obtained products were thoroughly investigated by various methods including X-ray diffraction analysis (XRD), chemical phase analysis and Mössbauer spectroscopy. The effect of temperature, amount of iron sulfates and roasting time on the conversion of valuable metals into a water-soluble form was thermodynamically and experimentally studied both using pure ferrites and ZPR. Based on the results of time-resolved XRD analysis and synchronous thermal analysis (STA), a mechanism of the sulfation roasting was elucidated. The rate-controlling step of zinc and copper sulfation process during the ZPR roasting was estimated. The sulfating roasting at 600 °C during 180 min with the optimal Fe2(SO4)3∙9H2O addition followed by water leaching enables to recover 99% Zn and 80.3% Cu, while Fe, Pb, Ag, In, Ga retained almost fully in the residue.

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Sulfidation roasting of zinc leaching residue with pyrite for recovery of zinc and iron

Cited by 12 publications

References 25 publications

A comprehensive evaluation on leaching of non-ferrous metals from polymetallic tailings

A comprehensive evaluation on leaching of non-ferrous metals from polymetallic tailings

High-Efficiency Preferential Extraction of Lithium from Spent Lithium-Ion Battery Cathode Powder via Synergistic Treatment of Mechanochemical Activation and Oxidation Roasting

Comprehensive Study on the Mechanism of Sulfating Roasting of Zinc Plant Residue with Iron Sulfates

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