Review of the hydrometallurgical processing of non-sulfide zinc ores

Abkhoshk, Emad; Jorjani, E.; Al-Harahsheh, Mohammad; Rashchi, Fereshteh; Naazeri, M.

doi:10.1016/j.hydromet.2014.08.001

Cited by 190 publications

(59 citation statements)

References 57 publications

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“…At present, zinc is one of the main non-ferrous metals and is currently the fourth most widely consumed metal after iron, aluminum, and copper [1]. The main consumers of zinc are steel galvanization, alloy (brass and bronze) production, and the chemical industry [2].…”

Section: Introductionmentioning

confidence: 99%

“…Annually, the worldwide production of zinc exceeds 13 million tons [3]. Currently, zinc sulfide ores are the main source of zinc metal production and more than 85% of the world's zinc is produced from zinc sulfide concentrates using the roast-leach-electrowinning process [1,4]. To date, sulfide ore deposits of the Ural region (Sverdlovsk, Chelyabinsk, and Orenburg regions and Bashkortostan Republic) supply more than 90% of the zinc production in Russia.…”

Section: Introductionmentioning

confidence: 99%

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Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

Muravyov¹,

Panyushkina²

2020

Microorganisms

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A two-step process, which involved ferric leaching with biologically generated solution and subsequent biooxidation with the microbial community, has been previously proposed for the processing of low-grade zinc sulfide concentrates. In this study, we carried out the process of complete biological oxidation of the product of ferric leaching of the zinc concentrate, which contained 9% of sphalerite, 5% of chalcopyrite, and 29.7% of elemental sulfur. After 21 days of biooxidation at 40 °C, sphalerite and chalcopyrite oxidation reached 99 and 69%, respectively, while the level of elemental sulfur oxidation was 97%. The biooxidation residue could be considered a waste product that is inert under aerobic conditions. The results of this study showed that zinc sulfide concentrate processing using a two-step treatment is efficient and promising. The microbial community, which developed during biooxidation, was dominated by Acidithiobacillus caldus, Leptospirillum ferriphilum, Ferroplasma acidiphilum, Sulfobacillus thermotolerans, S. thermosulfidooxidans, and Cuniculiplasma sp. At the same time, F. acidiphilum and A. caldus played crucial roles in the oxidation of sulfide minerals and elemental sulfur, respectively. The addition of L. ferriphilum to A. caldus during biooxidation of the ferric leach product proved to inhibit elemental sulfur oxidation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

Muravyov¹,

Panyushkina²

2020

Microorganisms

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“…Even though their major sources are sulfides, finding new sources for production of lead and zinc concentrates as an alternative for depleting sulfide sources is a matter of issue (Ejtemaei et al, 2014). Cerussite and smithsonite are the most abundant non-sulfide minerals of lead and zinc and they have a considerable potential to produce lead and zinc concentrates (Moradi & Monhemius, 2011;Ma et al, 2011;Abkhoshk et al, 2014). Most commonly, hydrometallurgical processes or froth flotation are performed for concentration of cerussite and smthisonite (Gupta & Yan, 2006;Abkhoshk et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Cerussite and smithsonite are the most abundant non-sulfide minerals of lead and zinc and they have a considerable potential to produce lead and zinc concentrates (Moradi & Monhemius, 2011;Ma et al, 2011;Abkhoshk et al, 2014). Most commonly, hydrometallurgical processes or froth flotation are performed for concentration of cerussite and smthisonite (Gupta & Yan, 2006;Abkhoshk et al, 2014). Even though flotation of oxide minerals is quite hard due to consumption of excessive amounts of flotation reagents, lower selectivity and surface coating problems, flotation is still applicable and widely used method (Şentürk, 1987;Lan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Extraction of Zinc from Smithsonite by Ammonia Leaching

Talan¹,

Atalay²,

Altun³

2017

World Congress on Mechanical, Chemical, and Material Engineering

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-In this study, an ore taken from Kayseri region of Turkey was used. Characterization studies showed that the run-of mine ore is rich in oxide minerals, cerussite (PbCO 3 ) and smithsonite (ZnCO 3 ). The aim of the study was extraction of zinc from smithsonite by ammonia leaching on cerussite flotation tailings. Initial lead and zinc grades of the ore were 13.31% and 27.86%, respectively. As a result of a series of cerussite flotation tests, a lead concentrate containing 63.25% Pb was produced with 82.76% recovery. After that, tailing of flotation was treated with ammonia (NH 3 ) to extract zinc. For that purpose, 5M and 7M of NH 3 solutions were used for 30 minutes, 1 hour, 3 hours, 6 hours and 12 hours. In consequence of the leaching experiments, the highest extraction rate was obtained as 76.66% using 7M NH 3 solution with 12 hours of treatment.

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“…A promising method for mentioned technogenic dusts recycling is a technology based on alkaline leaching [1]. The main advantage of this approach is selectivity that provides a sufficiently high quality of leaching solutions.…”

Section: Introductionmentioning

confidence: 99%

Technogenic Zinc Usage Possibilities Investigation for Gold Cementation

Naumov¹,

Lobanov²,

Zelyah³

et al. 2017

Kms

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Industrial dusts with high zinc content are formed in nonferrous and ferrous metals metallurgy. Hydrometallurgical processing of such dusts can be used. In this case, alkaline solutions with high impurities content are formed. It is possible to produce zinc powder with different technological properties by electroextraction from mentioned alkaline solutions. This work describes investigation of zinc powders usage possibilities to gold cementation from cyanide solutions.

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Review of the hydrometallurgical processing of non-sulfide zinc ores

Cited by 190 publications

References 57 publications

Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

Extraction of Zinc from Smithsonite by Ammonia Leaching

Technogenic Zinc Usage Possibilities Investigation for Gold Cementation

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