Acidic leaching and precipitation of zinc and manganese from spent battery powders using various reductants

The role of iron in metal-bearing waste bioleaching was studied. Four various types of waste (printed circuit boards (PCBs), Ni-Cd batteries, alkaline batteries and Li-ion batteries) were treated by bioleaching using the acidophilic bacteria A. ferrooxidans and A. thiooxidans (separately or in mixture). Role of main leaching agents (Fe 3+ ions or sulphuric acid) was simulated in abiotic experiments. Results showed that oxidation abilities of Fe 3+ ions were crucial for recovery of Cu and Zn from PCBs, with the efficiencies of 88% and 100%, respectively. To recover 68% of Ni from PCBs, and 55% and 100% of Ni and Cd, respectively, from Ni-Cd batteries both oxidation action and hydrolysis of Fe 3+ were required. The importance of Fe 2+ ions as a reducing agent was showed in bioleaching of Co from Li-ion batteries and Mn from alkaline batteries. The efficiency of the processes has increased by 70% and 40% in Co and Mn bioleaching, respectively, in the presence of Fe 2+ ions. Based on the results we suggest the integrated biometallurgical model of metal-bearing waste recycling in the effort to develop zero-waste and less energy-dependent technologies.

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“…ZnO is readily soluble in the presence of acids such as H 2 SO 4 , HCl or HNO 3 , whereas Mn is dissolved only partially [22,23].…”

Section: Metal Leaching From Alkaline Batteriesmentioning

confidence: 99%

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Sedláková-Kaduková

Marcinčáková

Mražíková

et al. 2017

Archives of Metallurgy and Materials

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“…Yapılan literatür çalışmalarında, atık pil tozlarının hidrometalurjik yöntemlerle geri kazanılmasında kimyasal olarak sülfürik asit [5], hidroklorik asit [6], amonyak [7], sodyum hidroksit [8], amonyum asetatın sulu çözeltileri [9] ve askorbik asit, okzalik asit, sitrik asit ile birlikte hidroklorik asit ve nitrik asit [10] kullanılmıştır.…”

Section: öNceki̇ çAlişmalarunclassified

“…XRF analizi sonucu, deneysel çalışmalarda kullanılan alkali pil tozunun yaklaşık olarak %0,06 Si, %1,48 K, %53,01 Mn, %0,05 Fe, %2,56 Zn, %0,009 Cl ve %0,49 Ti içerdiği tespit edilmiştir. Bu sebeple, yüksek konsantrasyonda çinko ve mangan içeriği sebebiyle, atık alkali pil tozundan çinko ve mangan elementlerinin giderimi hedeflenmiştir [10]. Ayrıca, deneysel çalışmalarda kullanılan pil tozları kral solüsyonu ile 3 saat 40 °C"de karıştırma işlemi sonrasında da Hach Dr 5000 spektrofotometresi ile çinko ve mangan konsantrasyonları ölçülerek her iki karakterizasyon sonuçları karşılaştırılmıştır.…”

Section: Karakterizasyon çAlışmalarıunclassified

Glukonik Asit ve Hidroklorik Asit ile Atık Alkali Pillerden Çinko ve Mangan Gideriminin İncelenmesi: Taguchi Deney Tasarımı

Karacan¹,

Sayilgan²

2017

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖzBu çalışmada, atık alkali pillerden glukonik asit ve hidroklorik asit ile çinko ve mangan elementlerinin solüsyona alınabilirliği incelenmiş ve Taguchi deneysel tasarımı ile oluşturulan deney düzeneği ile sonuçlar istatiksel olarak değerlendirilmiştir. Taguchi deney tasarım şartlarına göre 3 farklı değişken ile 3 farklı konsantrasyonda (3*3) çalışılmıştır. İki farklı Taguchi deneysel tasarımı oluşturulmuştur. Birinci Taguchi deneysel tasarımında değişken olarak glukonik asit, sıcaklık, deney süresi seçilmiştir. İkinci Taguchi deneysel tasarımında ise değişken olarak glukonik asit, hidroklorik asit ve deney süresi seçilmiştir. Deneysel çalışmalar sonucunda, asit olarak sadece glukonik asitin kullanıldığı deneysel çalışmalarda, yüksek glukonik asit konsantrasyonlarında mangan gideriminin daha iyi olduğu; bununla birlikte glukonik asit ve hidroklorik asitin birlikte kullanıldığı durumlarda düşük konsantrasyonda glukonik asit ve düşük konsantrasyonlarda hidroklorik asit ile daha iyi giderimler elde edildiği görülmüştür. Tüm deneysel çalışmalarda etkili bir çinko giderimi elde edilememiştir.Anahtar Kelimeler: Çinko, Glukonik asit, Hidroklorik asit, Mangan, Taguchi yöntemi Investigation of Manganese and Zinc Removal with Gluconic Acid and Hydrochloric Acid from Waste Alkaline Batteries: Taguchi Experimental Design AbstractIn this study, the leaching of zinc and manganese from waste alkaline battery powders with gluconic acid and hydrochloric acid was investigated. The results were evaluated statistically with Taguchi experimental design. Taguchi experimental design conditions was conducted at 3 different concentrations (3*3) with 3 different variables. Two different Taguchi experimental designs were created. In the first Taguchi experimental design, gluconic acid, temperature, reaction time were chosen as variables. In the second Taguchi experimental design, gluconic acid, hydrochloric acid and reaction time were selected as variables. Experimental studies have shown that manganese removal is better at high concentrations of gluconic acid in experimental studies where only gluconic acid is used as the acid; while the lower concentration of gluconic acid and hydrochloric acid was sufficient when being used in combination. There was no effective zinc removal was achieved in all experimental runs.

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“…However, the spectrophotometric determination of this element in these matrices is troublesome because many of the chromogenic reagents proposed also react with base transition metals. Numerous methods have been published for such determination; however, they are not simple and usually require extensive and laborious steps for separation of zinc from other metallic and counter ions using procedures which involve: liquid-liquid extraction [2][3][4][5], ion exchange [6], and precipitation [7,8].…”

Section: Introductionmentioning

confidence: 99%

Flame atomic absorption determination of ultra-trace zinc in environmental samples after pre-concentration by solid phase extraction

Payehghadr

2017

Eur. J. Chem.

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A simple, reliable and rapid method for pre-concentration and determination of ultra-trace zinc using octadecyl silica membrane disk modified by a new Schiff base ligand, and flame atomic absorption spectrometry is presented. Various parameters including, pH of aqueous solution, flow rates, the amount of ligand and type of stripping solvents were optimized. The breakthrough volume is greater than 1000 mL with an enrichment factor of more than 200 and 120 ng/L detection limit. The capacity of the membrane disks modified by 8 mg of the ligand was found to be 260 µg of zinc. The effects of various cationic interferences on percent recovery of zinc ion were studied. The method was successfully applied for the determination of zinc ion in different samples, especially determination of ultra-trace amount of zinc in waters and plants. KEYWORDSZinc Schiff base Octadecyl silica disks Solid phase extraction Atomic absorption spectrometry N, Cite this: Eur.

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Acidic leaching and precipitation of zinc and manganese from spent battery powders using various reductants

Cited by 113 publications

References 20 publications

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Glukonik Asit ve Hidroklorik Asit ile Atık Alkali Pillerden Çinko ve Mangan Gideriminin İncelenmesi: Taguchi Deney Tasarımı

Flame atomic absorption determination of ultra-trace zinc in environmental samples after pre-concentration by solid phase extraction

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