Leaching behavior of metals from a limonitic nickel laterite using a sulfation–roasting–leaching process

Guo, Xueyi; Dong, Li; Park, Kyung‐Ho; Tian, Qinghua; Wu, Zhan

doi:10.1016/j.hydromet.2009.07.012

Cited by 103 publications

(42 citation statements)

References 20 publications

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“…sulfation [26,27] and to process limonitic nickel laterites with a sulfation-roasting-leaching process [28]. Selective sulfation with SO 2 followed by water leaching has also been proposed for extraction of manganese from manganese oxide ore with high iron content [29].…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Recoveries of Valuable Metals from Spent Nickel Metal Hydride Vehicle Batteries via Sulfation, Selective Roasting, and Water Leaching

Korkmaz

Alemrajabi

Rasmuson

et al. 2018

J. Sustain. Metall.

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The recoveries of rare earth elements (REEs), nickel, and cobalt from hybrid electric vehicle batteries by sulfation, selective roasting, and water leaching have been studied. The cathode and anode materials of a Panasonic Prismatic Module nickel metal hydride (NiMH) battery were used in the study. The optimal conditions for each step of the process were determined by performing lab-scale experiments. It was found that 8 mol/L of sulfuric acid was sufficient for the sulfation with a solid-to-liquid ratio of 1/5. The optimal roasting conditions was determined to be 850°C for 2 h. Under optimal conditions, 96% of the REEs could be obtained in the aqueous phase with negligible contamination of Ni and Co. The Ni and Co remained in solid phase as oxides together with traces of aluminum, zinc, and iron oxides. This method provides a way for the separation of the REEs from nickel, cobalt, and other elements present in the NiMH battery, into a leachate suitable for further processing.

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Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Recoveries of Valuable Metals from Spent Nickel Metal Hydride Vehicle Batteries via Sulfation, Selective Roasting, and Water Leaching

Korkmaz

Alemrajabi

Rasmuson

et al. 2018

J. Sustain. Metall.

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“…In stage I, it can be seen from Fig. 4 4 ) in the raw saprolite laterite ore [18,19]. Considering the energy consumption, the optimum leaching time was selected as 60 min.…”

Section: Effect Of Liquid To Solid Ratiomentioning

confidence: 99%

A novel hydrometallurgical approach to recover valuable metals from laterite ore

et al. 2014

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“…O primeiro se destaca pela presença majoritária no minério e os dois últimos pelo foco comercial [2] [3]. O beneficiamento de minérios, incluindo o minério limonítico de níquel, é feito através do processamento hidrometalúrgico [5]. O fluxograma simplificado do processo de hidrometalurgia é mostrado na Figura 1 [2] [6].…”

Section: Introductionunclassified

Remoção De Ferro Da Solução Sintética De Mínerio Limonítico De Níquel Utilizando Extração Por Solventes

Aliprandini¹,

Correa²,

Tenório³

et al. 2016

ABM Proceedings

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ResumoOs minérios limoníticos de níquel apresentam na sua composição metais como ferro, níquel e cobalto, sendo o primeiro o elemento majoritário. A presença majoritária de ferro prejudica a separação dos demais metais que possuem interesse comercial. Para remoção do ferro, técnicas hidrometalúrgicas são usadas. A extração por solventes é uma técnica com foco na separação seletiva de metais. Neste trabalho, foi preparada uma solução sintética baseada nas concentrações dos metais presentes na lixiviação de um minério limonítico de níquel. A solução foi colocada em contato com o extratante Cyanex 272. Este extratante é conhecido pela sua seletividade ao ferro em valores de pH próximos a 2,0. As amostras foram analisadas utilizando a técnica de Espectroscopia de Fluorescência de Raios X por Energia Dispersiva (EDX). Após concluídos os ensaios foi encontrado que durante a extração do ferro, o cobalto foi coextraído junto, mesmo em pHs entre 0,5 e 2,0, indicando que a presença do ferro altera o comportamento do cobalto. Palavras-chave: Minério limonítico de níquel; Extração por solventes; Extração de ferro; Coextração de cobalto IRON REMOVAL FROM SYNTHETIC NICKEL LIMONITE ORE SOLUTION USING SOLVENT EXTRACTION AbstractNickel limonite ore is composed for metals as iron, nickel and cobalt. Iron is the major element in the ore. The iron presence affects the recovery of other metals with commercial interesting. Hydrometallurgical techniques are used to remove iron from aqueous solutions. Solvent extraction is a technique used for selective separation of metals. In this study, a synthetic solution was prepared using the concentration of metals from a sulfuric liquor obtained in leaching process of a nickel limonite ore. The solution was mixed with the extractant Cyanex 272, since, at pH 2.0, iron could be selectively extracted using this reagent. The samples were analyzed by Energydispersive X-ray spectroscopy (EDX). After the test it was found that during extraction of iron, cobalt was co-extracted, between pH range 0.5 and 2.0. Thus, the presence of iron in solutions affects the cobalt behavior.

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Leaching behavior of metals from a limonitic nickel laterite using a sulfation–roasting–leaching process

Cited by 103 publications

References 20 publications

Recoveries of Valuable Metals from Spent Nickel Metal Hydride Vehicle Batteries via Sulfation, Selective Roasting, and Water Leaching

Recoveries of Valuable Metals from Spent Nickel Metal Hydride Vehicle Batteries via Sulfation, Selective Roasting, and Water Leaching

A novel hydrometallurgical approach to recover valuable metals from laterite ore

Remoção De Ferro Da Solução Sintética De Mínerio Limonítico De Níquel Utilizando Extração Por Solventes

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