Liquid–liquid extraction of Cu(II), Co(II) and Ni(II) with salicylidèneaniline from sulphate media

Boukraa, Yamina; Barkat, Djamel; Benabdellah, T.; Tayeb, Abdelkader; Kameche, Mostèfa

doi:10.1080/00319100600828960

Cited by 28 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extraction equilibrium for each extraction system was analyzed according to the slope analysis method [20] on the basis of some equations derived from equations (5) and (6). If the metal complex is not formed in the aqueous solution and the concentration of the extractant is not changed during the extraction reaction, the slope for the plot of log D against pH becomes the charge on the aqueous metal ion, n:…”

Section: Extraction and Analytical Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

The effect of diluents on extraction of copper(II) with di(2-ethylhexyl)phosphoric acid

Ghebghoub

2009

Journal of Coordination Chemistry

Self Cite

View full text Add to dashboard Cite

The liquid-liquid extraction of copper(II) from sulfate medium with di(2-ethylhexyl)phosphoric acid (D2EHPA, HL) at 25 C is studied with the following parameters: pH, concentration of the extractant, and the nature of diluent. The effect of the diluent using polar and nonpolar solvents in the extraction of copper(II) is discussed. The extracted copper(II) species were CuL 2 in 1-octanol and methyl isobutyl ketone and CuL 2 Á 2HL in toluene, carbon tetrachloride, and cyclohexane. The extraction constants are evaluated for different diluents.

show abstract

Section: Extraction and Analytical Proceduresmentioning

confidence: 99%

“…The recovery of copper(II) from aqueous solutions is very important for environmental protection and the chemical equilibria involved in the extraction processes have been studied [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

The effect of diluents on extraction of copper(II) with di(2-ethylhexyl)phosphoric acid

Ghebghoub

2009

Journal of Coordination Chemistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…Salicylideneaniline (SAN) can be used for the extraction of metal species from sulfate aqueous to organic solutions. In our previous paper [10], we reported using SAN as an excellent extractant in liquid-liquid extraction of copper(II), cobalt(II), and nickel(II) from sulfate media which depends on pH, concentration of the extractant, and the nature of diluent. The stoichiometry coefficients of the extracted species are determined by the slope analysis method.…”

Section: Introductionmentioning

confidence: 99%

Liquid–liquid extraction of copper(II) with substituted salicylideneanilines from sulfate media

Boukraa

Benabdallah

2011

Journal of Coordination Chemistry

View full text Add to dashboard Cite

The liquid-liquid extraction of copper(II) with Schiff bases in chloroform from sulfate media is studied for pH and concentration of the extractant. Stoichiometry coefficients of the extracted species are determined by the slope analysis method. With salicylideneaniline, the copper(II) is extracted as a mixed chelate complex, CuL 2 HL. In the presence of substituent, the copper is extracted as simple chelates, CuL 2 . The trends in the values of extraction constants were explained in terms of the nature of the substituents.

show abstract

“…Under these circumstances, in order to determine trace levels of Co, a separation and enrichment step prior to the determinations may be beneficial. Several methods have been proposed for separation and preconcentration of trace Co, including liquid-liquid extraction (LLE) [4], coprecipitation [5], solid phase extraction (SPE) [6], and cloud point extraction (CPE) [7]. Each technique has its advantages and disadvantages and should be chosen according to the analytical problem.…”

Section: Introductionmentioning

confidence: 99%

A novel separation/preconcentration technique based on ultrasonic dispersion liquid-liquid microextraction for determination of trace cobalt by flame atomic absorption spectrometry

Wang¹,

Ke²,

Zhang³

et al. 2012

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

ABSTRACT. An improved method for the determination of trace cobalt in water samples has been developed using ultrasonic dispersion liquid-liquid microextraction (US-DLLME) prior to flame atomic absorption spectrometry (FAAS) analysis. In this method, cobalt was extracted into the fine droplets of carbon tetrachloride after chelate formation with the water soluble ligand, ammonium pyrrolidine dithiocarbamate (APDC). The fine droplets of carbon tetrachloride were formed and dispersed in the aqueous sample with the help of ultrasonic waves which accelerated the formation of the fine cloudy solution without using disperser solvents. Under optimum conditions, the calibration curve was linear in the range of 2.5-500 µg L -1 , with a detection limit of 0.8 µg L -1 . The relative standard deviation (RSD) for ten replicate measurements of 20 and 500 µg L -1 of cobalt were 3.3 and 2.2%. This proposed method was successfully applied to tap water, river water, and sea water, and accuracy was assessed through the analysis of certified reference water or recovery experiments. Operation simplicity, low cost, high enrichment factor, and low consumption of the extraction solvent are the main advantages of the proposed method.

show abstract

Liquid–liquid extraction of Cu(II), Co(II) and Ni(II) with salicylidèneaniline from sulphate media

Cited by 28 publications

References 23 publications

The effect of diluents on extraction of copper(II) with di(2-ethylhexyl)phosphoric acid

The effect of diluents on extraction of copper(II) with di(2-ethylhexyl)phosphoric acid

Liquid–liquid extraction of copper(II) with substituted salicylideneanilines from sulfate media

A novel separation/preconcentration technique based on ultrasonic dispersion liquid-liquid microextraction for determination of trace cobalt by flame atomic absorption spectrometry

Contact Info

Product

Resources

About