Separation and Recovery of Nickel from Waste Electroless Nickel-Phosphorous Plating Solution

Ookubo, Tokie; Nishihama, Syouhei; Yoshizuka, Kazuharu

doi:10.15261/serdj.20.149

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…2) in CPME and dodecane were compared to determine the effect of the diluent on the extraction. D2EHPA is one of the most popular acidic extractants for liquid-liquid extraction processes and has been used in various processes for the purification of metals such as uranium, rare earths, and zinc [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Extraction Behavior of Metal Ions Using D2EHPA in Cyclopentyl Methyl Ether

Oshima

Fujiwara

Baba

2015

SERDJ

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Cyclopentyl methyl ether (CPME) has been developed as a commercially available ethereal solvent for application to various chemical processes. In the present study, the extraction of transition metal ions using di-(2-ethylhexyl) phosphoric acid (D2EHPA) in CPME and dodecane was studied in order to evaluate the potential of CPME as a diluent in the liquid-liquid extraction process. Transition metal ions were extracted by a proton exchange reaction using D2EHPA in CPME. The degree of extraction into CPME was reduced compared with dodecane. The extraction reaction of Cu(II) using D2EHPA in CPME and dodecane was confirmed by slope analysis. A 2 : 1 complex between dimeric D2EHPA and Cu(II) was formed in CPME and dodecane, and the extraction equilibrium constants were determined.

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Section: Introductionmentioning

confidence: 99%

Extraction Behavior of Metal Ions Using D2EHPA in Cyclopentyl Methyl Ether

Oshima

Fujiwara

Baba

2015

SERDJ

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“…It was expected that the spent plating water with the targeting metal could be isolated to avoid contamination by other metals. The metal recovery from plating wastewater has been examined by several methods such as cementation [9], precipitation [10], electrowinning [11]- [13], solid phase extraction [14] [15], and solvent extraction [16]- [18]. In addition, the metal recovery from palladium plating water has been performed by electrochemical method [19], and ion exchange resin [20].…”

Section: Introductionmentioning

confidence: 99%

Homogeneous Liquid-Liquid Extraction (HoLLE) of Palladium in Real Plating Wastewater for Recovery

Kato¹,

Igarashi²,

Ohno³

et al. 2016

JEP

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On the basis of homogeneous liquid-liquid extraction (HoLLE) with Zonyl FSA to plating water containing 1 mg palladium, 96.6% of the palladium was extracted into the sedimented liquid phase. After phase separation, the volume ratio (Va/Vs) of the aqueous phase (Va) and the sedimented liquid phase (Vs) was 556 (50 mL → 0.09 mL). The assessment of the potential implementation of this procedure to wastewater treatment showed that HoLLE was satisfactorily achieved when the volume was scaled up to 1000 mL. Moreover, HoLLE was conducted to real palladium plating wastewater generated in the plating industry. 94.5% of the palladium was extracted into the sedimented liquid phase. After phase separation, the volume ratio (Va/Vs) of the aqueous phase (Va) and the sedimented liquid phase (Vs) was 500 (50 mL → 0.1 mL). In addition, HoLLE could separate palladium from coexisting metals in real plating wastewater. This knowledge is expected to lead to the development of new separation and concentration technologies of rare metals from real plating wastewater.

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“…Separation and recovery of nickel from spent EN liquids can reduce the volume of waste waters and save resources [1][2][3], and is expected to contribute to the establishment of a recycling-based society. Solvent extraction is considered to be a promising candidate for the treatment of EN liquid wastes [4][5][6], because it enables the selective recovery of nickel from the liquid wastes without sludge generation. An effective solvent extraction system, which contains a chelating extractant with a small amount of an accelerating agent, has been used for the selective extraction of nickel [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Continuous Liquid-Liquid Extraction of Nickel from Simulated Electroless Nickel Plating Liquid Wastes by Using a Counter Current Emulsion Flow Extractor

Nagano

Mitamura

Yamashita

et al. 2014

SERDJ

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Simulated electroless nickel plating liquid wastes have been processed by using an emulsion flow extractor of a counter current type with a special focus on the influence of dilution of the liquid wastes on the extraction performance. The emulsion flow extractor provides efficient liquid-liquid extraction without the need for additional stirring or shaking. The solvent used in the present study was a Shellsol D70 solution containing LIX84-I as the extractant for nickel and PC88A as an accelerating agent. As a result, it was found that increasing the degree of dilution with water resulted in an improvement in nickel extractability obtained from the emulsion flow experiments with a maximum value of 96% as well as those obtained from batch experiments. Droplet sizes at the lower and the upper parts of the emulsion phases, estimated by using high-speed microscope, were 214 ± 36 µm and 415 ± 110 µm, respectively.

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Separation and Recovery of Nickel from Waste Electroless Nickel-Phosphorous Plating Solution

Cited by 8 publications

References 4 publications

Extraction Behavior of Metal Ions Using D2EHPA in Cyclopentyl Methyl Ether

Extraction Behavior of Metal Ions Using D2EHPA in Cyclopentyl Methyl Ether

Homogeneous Liquid-Liquid Extraction (HoLLE) of Palladium in Real Plating Wastewater for Recovery

Continuous Liquid-Liquid Extraction of Nickel from Simulated Electroless Nickel Plating Liquid Wastes by Using a Counter Current Emulsion Flow Extractor

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