Extraction and stripping of Cu and Ni from synthetic and industrial solutions of Sarcheshmeh Copper Mine containing Cu, Ni, Fe and Zn ions

Soeezi, Amirhossein; Abdollahi, Hadi; Shafaei, Sied Ziaedin; Rahimi, Esmaeil

doi:10.1016/s1003-6326(20)65232-3

Cited by 23 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At pH 5, the extraction efficiency for Cu was 92.9%; when the pH was adjusted to 10.5, the extraction efficiency for Ni was 93.0%. Soeezi et al [7] extracted Cu and Ni from Cu mining industrial wastewater using LIX984N as the extractant. At pH 2.5, the extraction efficiency for Cu was 99.5% and that for Ni was 71.0%.…”

Section: Resultsmentioning

confidence: 99%

“…With the addition of 15 vol.% LIX984N and an aqueous/organic (A/O) ratio of 1:1, adjusting the pH to 5 yielded a Cu extraction efficiency of 92.9%, while adjusting the pH to 10.5 resulted in a Ni extraction efficiency of 93%. Soeezi et al [7] extracted Cu and Ni from a Cu mining industrial wastewater using LIX984N as the extractant. Cu was effectively extracted under optimal conditions of pH 2.5, a LIX984N concentration of 10 vol.%, an A/O ratio of 1:1, and an extraction time of 3 min, achieving a Cu extraction efficiency of 99.5% and a Ni extraction efficiency of 71.0%.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Separation and Recovery of Copper and Nickel in the Leachate of a Waste IC Lead Frame through Synergistic Solvent Extraction Using a Binary Extractant Containing LIX984N and Cyanex302 Followed by Selective Stripping

Wang,

Lin,

Chen

et al. 2023

Sustainability

View full text Add to dashboard Cite

The IC lead frame is an essential component in semiconductor packaging, primarily composed of a nickel (Ni)–copper (Cu) alloy in which Ni is electroplated onto a Cu substrate. In this study, synergistic solvent extraction using a binary extractant containing LIX984N and Cyanex302, followed by two-stage selective stripping using sulfuric acid (H2SO4) and nitric acid (HNO3) as the stripping agent, was employed to separate and recover Cu and Ni from the leachate of an IC lead frame. The results indicated that under the optimal conditions of synergistic solvent extraction with an extraction pH value of 1, an extractant concentration of 0.015 M LIX984N + 0.0375 M Cyanex302, an extraction aqueous/organic (A/O) ratio of 1:1, and an extraction time of 5 min, the extraction efficiencies for Cu and Ni were 99.8% and 1.17%, respectively. The distribution ratios were DCu 999 and DNi 0.012, resulting in a separation factor of 83,250. In addition, the separation factor was much higher than that of using individual extractant of LIX984N (6208.3) or Cyanex302 (22,185.2). Subsequently, under optimal first-stage stripping conditions, using 0.05 M H2SO4 at a stripping organic/aqueous (O/A) ratio of 1:1, and with a stripping time of 3 min, a stripping efficiency of 99.9% for Ni was achieved. Next, under optimal second-stage stripping conditions, using 5 M HNO3 at a stripping O/A ratio of 2:1, and with a striping time of 3 min, a stripping efficiency of 99.9% for Cu was achieved. Finally, sodium hydroxide (NaOH) was added to the respective stripping solutions to precipitate Ni and Cu ions, followed by calcination treatment for the precipitates to obtain NiO and CuO, respectively. The purity of the former was 99.74% and that of the latter was 99.82%. The results demonstrate that synergistic solvent extraction using a binary extractant containing LIX984N and Cyanex302 can almost entirely extract Cu in the leachate of an IC lead frame at a lower extraction pH and a lower extractant concentration, thus reducing the co-extraction of Ni. In addition, less co-extracted Ni in the organic phase can be selectively stripped using dilute H2SO4, thus reducing the co-stripping of Cu. Hence, the effective separation and recovery of Cu and Ni in IC lead frame leachate can be achieved, which contributes to improving the sustainability of natural resources.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Separation and Recovery of Copper and Nickel in the Leachate of a Waste IC Lead Frame through Synergistic Solvent Extraction Using a Binary Extractant Containing LIX984N and Cyanex302 Followed by Selective Stripping

Wang,

Lin,

Chen

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Such flocs were suspended in the leachate and cannot be separated by plate-frame pressure filtration. In some industrial processes, the acid leachate was also adjusted by an alkaline solution to maintain a desirable pH range and then extracted by special extracting reagents, e.g., P204 ( Yuxin et al, 2023 ), LIX984, and Cyanex 302 ( Soeezi et al, 2020 ). For instance, the Cu/Ni-rich leachate of the Sarcheshmeh tail was adjusted to pH 2–3 and then extracted by 10% LIX984 to separate Cu, followed by adjusting to pH 4–5 for extracting Ni by 30% Cyanex 302 ( Soeezi et al, 2020 ).…”

Section: How To Increase the Leachate Ph?mentioning

confidence: 99%

Perspective on pH adjustment in hydrometallurgical recycling of valuable metals from waste

Suiyi,

Jian,

Yuhong

et al. 2023

Front. Chem.

View full text Add to dashboard Cite

pH adjustment was considered a simple step in the hydrometallurgy process, but its complicated operation was ignored in the past. In some industrial applications, the leachate pH was slowly adjusted by a diluted alkaline solution, with the defects of doubling the leachate volume and causing droplet hydrolysis/coagulation. Up to date, promising routes have been developed for rapid pH adjustment, especially in sealed high-temperature/pressure vessels. New routes emerged in some redox/decomposition reactions of nitrate/urea and organics. Such reactions did not start and/or were slow at room temperature but started spontaneously at high temperatures to generate/consume free H+. This induced pH adjustment in a rapid and homogeneous way.

show abstract

“…Soeezi 23 studied the effect of the extraction of D2EHPA on the extraction of copper and nickel ions in a synthetic solution containing 770 ppm copper, 3200 ppm nickel, 800 ppm iron, and 200 ppm zinc by changing the levels of parameters such as speed and time of mixing, the concentration of extractor, acidity (pH), and temperature. 23 The best and highest extraction of copper and nickel was obtained at a time of 5 min, a speed of 700 rpm, a temperature of 45°C, an extractor concentration of 30%, and an A/O ratio of 3 at pH 6.…”

Section: Introductionmentioning

confidence: 99%

Solvent extraction of nickel from iron and cobalt containing sulfate solutions

Arslan¹,

Güven²,

Yenial³

et al. 2023

MSEIJ

View full text Add to dashboard Cite

In this study, solvent extraction is applied for extracting nickel from sulfate solutions containing iron and cobalt ions. This process can also be applied for the cleaning of waste solutions and for increasing solution concentrations after the leaching of low-grade nickel ores. Di-2-Ethylhexyl phosphoric acid (D2EHPA) was used as an extractant for this purpose. Effects of pH, aqueous/organic (A/O) phase ratio, iron, and cobalt ion contents of the solution on nickel extraction efficiency were investigated. The McCabe-Thiele diagrams for extraction and stripping steps were developed to determine the number of stages required. A total of two stages were required for 96.3% of Ni extraction and a total of two stages to strip nickel with 98% efficiency.

show abstract

Extraction and stripping of Cu and Ni from synthetic and industrial solutions of Sarcheshmeh Copper Mine containing Cu, Ni, Fe and Zn ions

Cited by 23 publications

References 34 publications

Separation and Recovery of Copper and Nickel in the Leachate of a Waste IC Lead Frame through Synergistic Solvent Extraction Using a Binary Extractant Containing LIX984N and Cyanex302 Followed by Selective Stripping

Separation and Recovery of Copper and Nickel in the Leachate of a Waste IC Lead Frame through Synergistic Solvent Extraction Using a Binary Extractant Containing LIX984N and Cyanex302 Followed by Selective Stripping

Perspective on pH adjustment in hydrometallurgical recycling of valuable metals from waste

Solvent extraction of nickel from iron and cobalt containing sulfate solutions

Contact Info

Product

Resources

About