Journal ArticleDOI
The effect of diluents on extraction of copper(II) with di(2-ethylhexyl)phosphoric acid
F. Ghebghoub,D. Barkat +1 more
TLDR
In this paper, the effect of the diluent using polar and nonpolar solvents in the extraction of copper(II) is discussed and the extraction constants are evaluated for different diluents.Abstract:
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 CuL2 in 1-octanol and methyl isobutyl ketone and CuL2 · 2HL in toluene, carbon tetrachloride, and cyclohexane. The extraction constants are evaluated for different diluents.read more
Citations
More filters
Journal ArticleDOI
Development course of separating rare earths with acid phosphorus extractants: A critical review
TL;DR: In this article, the development course of separating rare earths with acid phosphorus extractants, including extraction chemistry (thermodynamics and kinetics), separation process and industrial application, the loss/degradation of extractants.
Journal ArticleDOI
Ion-pair extraction-reaction of calcium using Y-shaped microfluidic junctions: An optimized separation approach
TL;DR: In this article, a continuous micro-solvent extraction-reaction was developed for the efficient separation of calcium ion, and the results showed that the efficiency varies significantly with changes in reagent concentration.
Journal ArticleDOI
Insights into the saponification process of di(2-ethylhexyl) phosphoric acid extractant: Thermodynamics and structural aspects
TL;DR: In this article, the effect of temperature, types of saponifier, and diluent on the saponification process of di(2-ethylhexyl)phosphoric acid extractant (D2EHPA) was investigated by the isothermal titration calorimetry (ITC), attenuated total reflection infrared (ATR-IR), and small-angle X-ray scattering (SAXS) spectroscopies.
Journal ArticleDOI
Emulsion liquid membrane extraction of Ni(II) and Co(II) from acidic chloride solutions using bis-(2-ethylhexyl) phosphoric acid as extractant
TL;DR: In this article, an emulsion liquid membrane process using bis-(2-ethylhexyl) phosphoric acid (D2EHPA) to extract and separate Ni(II and Co(II) from acidic chloride solutions is described.
References
More filters
Book
Handbook of Solvent Extraction
TL;DR: In this paper, the basic principles of Mixer-Settler design are presented. But they do not consider the use of a simple box-type mixer-settler.
Journal ArticleDOI
Separation technologies for metals recovery from industrial wastes
TL;DR: In this article, the main separation techniques are: solvent extraction, leaching-precipitation, electro-oxidation, and ion exchange, which are the main separations techniques for industrial wastes treatment.
Journal ArticleDOI
Equilibrium studies of the extraction of divalent metals from nitrate media with di-(2ethylhexyl) phosphoric acid
I. Komasawa,T. Otake,Y. Higaki +2 more
TL;DR: In this paper, the authors used the distribution data for di-(2ethylhexyl)phosphoric acid (HPEHP) between n-heptane and 0.1 mol/dm3 (Na, H)NO3 to determine the equilibrium constants of HDEHP such as the dimerization, the distribution and the acid dissociation constant.
Related Papers (5)
Extraction of copper(II) and sodium with di-(2-ethylhexyl)- phosphoric acid
Isao Kojima,J. Fukuta,M. Tanaka +2 more