Solvent Extraction of Palladium(II) with Various Ketones from Nitric Acid Medium

Hùng, Nguyễn Duy; Watanabe, Masayuki; Kimura, Takaumi

doi:10.1080/07366290701285538

Cited by 38 publications

(11 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several appropriate technologies are available including precipitation (Safdar et al, 2011), solvent extraction (Hung et al, 2007;Shamsipur et al, 2009), membrane filtration (Borbély and Nagy, 2009;Trivunac and Stevanovic, 2006;Xiang Li et al, 2013), cementation (Aktas, 2011(Aktas, , 2012Morcali et al, 2013c), ion exchange (Godlewska-Żylkiewicz et al, 2000;Shen et al, 2010Shen et al, , 2011 and adsorption (Fırlak et al, 2013;Kyzas et al, 2013;Wang et al, 2011). Comparatively, adsorption seems to be the most suitable as large volumes of very dilute wastes can be treated economically and nearly no waste residue is produced (Morcali et al, 2013a).…”

Section: Introductionmentioning

confidence: 97%

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Morcali

Zeytuncu

2015

International Journal of Mineral Processing

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 97%

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Morcali

Zeytuncu

2015

International Journal of Mineral Processing

View full text Add to dashboard Cite

“…2 In this context, the extraction of Pd(II) from nitric acid medium with various ketones in nitrobenzene has been reported. 3 The authors concluded that both methylalkylketones and ketones containing symmetrical alkyl configuration effectively extracted Pd(II) from nitric acid medium, especially 2-tridecanone and 2-nonanone which exhibited efficient extraction of Pd(II) and provided a feasible extraction system at 3.0 M ligand concentration and HNO 3 above 2.0 M.…”

Section: Introductionmentioning

confidence: 99%

Liquid-liquid Extraction and Recovery of Pd(II) from Nitric Acid Medium Using Green Diesel as Extractant

Masry¹,

Zeid²,

Kassem³

et al. 2018

JPS

View full text Add to dashboard Cite

A cost-effective method for the extraction of palladium (Pd) from HNO 3 solution by green diesel as extractant in kerosene was investigated. Several parameters such as extractant, nitrate, hydrogen ion, nitric acid and metal ion concentrations, phase ratio, and thermodynamic parameters were studied. The extracted species were deduced using slope analysis method and infrared (IR) measurements. The results showed that the extraction efficiency of Pd(II) is 95% with 10% (v/v) diesel in kerosene, and 97% was recovered from the loaded organic solution using 0.05 M thiourea or ammonium thiocyante solutions as stripping agents. The maximum loading capacity of diesel was found to be 2 × 10 −2 moles of Pd(II) per mole extractant. The effect of diluents on the extraction of Pd(II) from nitric acid solution by green diesel indicated that, under the used experimental conditions, kerosene gave the highest extraction percent compared to cyclohexane, benzene, toluene, chloroform and carbon tetrachloride. Extraction of Pd(II) from different acidic media was also carried out and the extraction percent was found to decrease in the order: H 2 SO 4 > HNO 3 > HCl. The possibility of extraction and recovery of Pd from the sulphate leach solution of spent automotive catalyst was explored and a modified process is proposed and evaluated.

show abstract

“…The recent literature has included several methods for the recovery of precious metals (i.e., platinum, palladium, rhodium, ruthenium, osmium, iridium, gold, and silver) from aqueous solutions, such as solvent extraction (Shamsipur et al 2009;Hung et al 2007), ionexchange (Shen et al 2010;Godlewska-Żylkiewicz et al 2000;Shen et al 2011), filtration (Li et al 2013;Trivunac and Stevanovic 2006;Borbély and Nagy 2009), cementation (Aktas 2012;Morcali et al 2013a), and adsorption Kyzas et al 2013;Morcali et al 2013b). Among these methods, adsorption is the most suitable method for the recovery of precious metals due to its low cost, ease in handling, high efficiency, reversibility, and the availability of different adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Adsorption Application of In Situ Photo-Cross-Linked Electrospun Poly(Vinyl Alcohol)-Based Nanofiber Membranes

Zeytuncu

Akman

Yücel

et al. 2015

Water Air Soil Pollut

View full text Add to dashboard Cite

Poly(vinyl alcohol)/maleic anhydride/acryloyl thioamide monomer (PVA/MA/ATM) nanofiber membranes (NFm) were synthesized by a combination of UV radiation and an electrospinning technique. The PVA/MA/ATM NFm were characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), Brunauer-Emmert-Teller (BET) analysis, scanning electron microscopy (SEM), and energy dispersion spectrometry (EDS). These membranes were used for adsorption-desorption of platinum (Pt(IV)) and palladium (Pd(II)) from a fire assay (FA) leaching waste solution, and the effect of process parameters such as pH of solution, contact time, NFm dosage, temperature, and adsorption isotherms and kinetics studies on the recovery of Pt(IV) and Pd(II) from the waste solution were investigated. The adsorption equilibrium data fit better using the Langmuir model than the Freundlich model. Maximum adsorption capacities, Q max , at 45°C were found to be 69.93 and 112.36 mg/g for Pt(IV) and Pd(II), respectively. The activation energies (E a ) of Pt(IV) and Pd(II) were 27.90 and 20.29 kJ/mol, respectively. The best desorption reagent was a 1.0 M HCl-1.0 M thiourea (TU) solution for both Pd(II) and Pt(IV). Reusability studies showed that the adsorption capacity can remain up to 90 % after five times of usage. This study provides a promising NFm with an effective adsorption property for Pt(IV) and Pd(II) ions.

show abstract

Solvent Extraction of Palladium(II) with Various Ketones from Nitric Acid Medium

Cited by 38 publications

References 23 publications

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Liquid-liquid Extraction and Recovery of Pd(II) from Nitric Acid Medium Using Green Diesel as Extractant

Synthesis and Adsorption Application of In Situ Photo-Cross-Linked Electrospun Poly(Vinyl Alcohol)-Based Nanofiber Membranes

Contact Info

Product

Resources

About