Separation of Ni and Co by D2EHPA in the Presence of Citrate Ion

Nadimi, H.; Haghshenas, Davoud Fatmehsari; Firoozi, Sadegh

doi:10.1007/s11663-017-1008-7

Cited by 8 publications

(4 citation statements)

References 31 publications

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“…Since the particles are so small, the bacteria can easily leach the metals, resulting in a process efciency of up to 95.34% for Cu 2+ , 67.30% for Sn 2+ , 85.80% for Pb 2+ , and 96.84% for Zn 2+ . As a result, 0.05-mm PCB samples are considered to be the best possible size for the experiment, in line with earlier research [38,39].…”

Section: Efect Of Size On the Recovery Ratesupporting

confidence: 62%

Statistical Optimization of Bioleaching for Simultaneous Recovery of Cu, Sn, Pb, and Zn from Computer-Printed Circuit Boards

Palanisamy

Myneni

Palaniappan³

et al. 2023

Journal of Chemistry

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Electronic garbage is one of the fastest-growing waste streams. Its disposal and appropriate management are a worldwide concern. Printed circuit boards (PCBs) are critical components in contemporary electronic gadgets that contain toxic elements. Bioprocessing of PCBs for metal recovery employing microbial methods has evolved as a green solution in metallurgical operations. Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans were used in this study to leach metals from powdered waste PCBs. The RSM is used for optimizing the leaching conditions. The optimal conditions obtained were a bacterial activation period of 28 days, a pulp density of 23 g/L, and a temperature of 31°C. A confirmatory experiment under these optimal circumstances yielded recovery rates of Cu2+, Sn2+, Pb2+, and Zn2+ of 95.62%, 96.27%, 95.6%, and 98.25%, respectively.

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Section: Efect Of Size On the Recovery Ratesupporting

confidence: 62%

Statistical Optimization of Bioleaching for Simultaneous Recovery of Cu, Sn, Pb, and Zn from Computer-Printed Circuit Boards

Palanisamy

Myneni

Palaniappan³

et al. 2023

Journal of Chemistry

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“…Di(2ethylhexyl)phosphoric acid (D2EHPA or P204) [37,38], hexyl phosphonic acid mono-2-ethyl-hexyl ester (P507 or PC88A) [39], Bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex272) [40] were most widely used, the three extraction solvent acid decreased gradually enhanced the ability of separation of cobalt and nickel in turn. D2EHPA can extract many metallic cations from various Carboxylates [41], Citrate [42][43][44], chloride [37,38,45], nitric [46,47], and sulfate [48][49][50]solutions. After the first commercial process using D2EHPA, P507 was developed and widely used in base-metal solvent extraction [39].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Quaternary Ammonium Lignin Based Ionic Liquids and Comparison of Extraction Behavior of Co(II) and Ni(II) with 2-Ethylhexyl Phosphoric Acid Mono-2-ethylhexyl Ester

Li,

2024

Preprint

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Two interesting compounds such as quaternary ammonium lignin(QAL) and 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (P507) were synthesized as ionic liquids(QP-ILs) for the extraction of metal ions. The extraction behavior of Co(II) and Ni(II) from chloride solution was compared between QP-ILs and P507. The results showed that the extraction rates of Co(II) and Ni(II) in the two solutions varied with the extraction conditions, but QP-ILs has stronger extractability for cobalt than P507, while Ni is on the contrary. Under the same conditions, the Co/Ni separation performance(βCo/Ni) in QP-ILs is superior to that in p507. At pH4.0, 55℃, concentration of 20%, extraction time of 10 minutes, the βCo/Ni of QP-ILs reached to 2703, while that of P507 was only 164. In conclusion, QP-ILs was more efficient than P507 for separating Co from mixed solutions.

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“…Among these acids, D2EHPA was the most commonly used solvent. D2EHPA can extract various metallic cations from various Carboxylates [43], Citrate [44][45][46], chloride [47], nitric [48,49], and sulfate [50,51] solutions. After the first commercial process using D2EHPA, P507 was developed and widely used in base-metal solvent extraction [41].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Quaternary-Ammonium-Lignin-Based Ionic Liquids and Comparison of Extraction Behavior of Co(II) and Ni(II) with 2-Ethylhexyl Phosphoric Acid Mono-2-Ethylhexyl Ester

Li,

2024

Separations

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The escalating demand for cobalt in modern industry necessitates the recycling or extraction of this resource for sustainable development. Despite the abundance of lignin in nature, its utilization remains low, highlighting the need to enhance its value-added potential. This study focuses on the synthesis of quaternary ammonium lignin (QAL) and 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester (P507) as ionic liquid (QP–IL) compounds for the extraction of metal ions. A comparison of the extraction behavior of Co(II) and Ni(II) from chloride solution between QP–IL and P507 revealed varying extraction ratios under different conditions, with QP–IL demonstrating a higher cobalt extractability than P507. Furthermore, under identical conditions, QP–IL exhibited superior Co/Ni separation performance (βCo/Ni) compared to P507. Ultimately, QP–IL proved to be more effective than P507 in separating cobalt from mixed solutions.

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Separation of Ni and Co by D2EHPA in the Presence of Citrate Ion

Cited by 8 publications

References 31 publications

Statistical Optimization of Bioleaching for Simultaneous Recovery of Cu, Sn, Pb, and Zn from Computer-Printed Circuit Boards

Statistical Optimization of Bioleaching for Simultaneous Recovery of Cu, Sn, Pb, and Zn from Computer-Printed Circuit Boards

Synthesis of Quaternary Ammonium Lignin Based Ionic Liquids and Comparison of Extraction Behavior of Co(II) and Ni(II) with 2-Ethylhexyl Phosphoric Acid Mono-2-ethylhexyl Ester

Synthesis of Quaternary-Ammonium-Lignin-Based Ionic Liquids and Comparison of Extraction Behavior of Co(II) and Ni(II) with 2-Ethylhexyl Phosphoric Acid Mono-2-Ethylhexyl Ester

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