Binary extraction of lanthanide(III) chlorides using carboxylates and dialkylphosphates of secondary and tertiary amines

Kalyakin, Sergey N.; Кузьмин, В. И.; Mulagaleeva, Marina A.

doi:10.1016/j.hydromet.2014.11.013

Cited by 28 publications

(10 citation statements)

References 13 publications

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“…At the same time, the selectivity of the extraction of lanthanides with carboxylic acids is significantly lower compared to phosphorus-containing extractants. In our previous paper, the extraction of REM chlorides in these systems was studied in detail [11]. In the present paper, the extraction of REM nitrates with dialkyl phosphates and carboxylates of tertiary and secondary amines, as well as their mixtures, was studied.…”

Section: Introductionmentioning

confidence: 94%

Binary extraction of lanthanides (III) nitrates with carboxylates and dialkylphosphates of secondary and tertiary amines

Kalyakin

Кузьмин

Mulagaleeva

2016

Theor Found Chem Eng

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Abstract⎯The separation of lanthanide (III) ions with binary extractants based on carboxylates, di-(2-ethylhexyl)phosphates of secondary and tertiary amines and their mixtures has been studied. The parameters of lanthanide nitrates extraction from the aqueous phase by solutions of these substances in nonpolar diluents have been found to fit the binary extraction mechanism. For systems containing di-(2-ethylhexyl) phosphate and caprate of dioctylammonium and trioctylammonium, synergistic effects have been observed.

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Section: Introductionmentioning

confidence: 94%

Binary extraction of lanthanides (III) nitrates with carboxylates and dialkylphosphates of secondary and tertiary amines

Kalyakin

Кузьмин

Mulagaleeva

2016

Theor Found Chem Eng

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“…В ранее представленных нами исследованиях [5][6][7] показано, что процесс извлечения не-органических солей РЗМ (хлоридов, бромидов, нитратов) ди-(2-этилгексил)фосфатами вторич-ных, третичных органических аминов и четвертичных органических оснований происходит в соответствии с закономерностями бинарной экстракции. Экстракция нитратов РЗМ ди-(2-этигексил)фосфатами органических аминов (в частности, диоктиламина, триоктиламина) мо-жет быть описана следующим уравнением основной гетерогенной реакции (без учета специ-фических взаимодействий в органической фазе, например, процессов сольватации продуктов избытком экстрагента):…”

Section: результаты и обсуждениеunclassified

“…В предыдущих статьях нами были описаны особенности экстракции хлоридов РЗМ смеся-ми бинарных экстрагентов [5][6][7]. Учитывая многообразие взаимодействий в органической фазе, поведение хлоридных и нитратных систем может значительно различаться.…”

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Solvent Extraction the Nitrate of Lanthanide (III) Binary Mixtures Extragents $ Carboxylate and Dialkyl Phosphate Amines

Kalyakin¹,

Кузьмин²,

Mulagaleeva³

2015

J. Sib. Fed. Univ. Chem.

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The use of binary extractants based on carboxilate and dialkilphosphate of the secondary and tertiary amines and their mixture for separation of ions of lanthanides (III) has been investigated. Isotherms of extraction of lanthanides nitrates (III) are linear at the initial segment, the interphase transfer of cation and anion of an inorganic salt is conjugate, lanthanides reextraction can be carried out by water.Studied binary extractanting agents are characterized by high separation factors of lanthanides. The synergetic effect for the system of di-(2-ethylhexyl)carboxylate, caprinate of di-n-octylammonium and tri-n-octylammonium has been found.

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“…It is important to select an appropriate extractant system for the target metal ions from diverse leaching solutions. In solvent extraction with mixtures of extractants, the efficiency and selectivity of the extractant mixtures greatly depend on some parameters such as the properties of the constituent extractants, the composition of the mixture, the nature of diluent, and the presence of salts in the aqueous solutions [1][2][3][4][5][6][7][8]. Among these factors, the interactions occurring in the mixtures have a significant effect on the extraction behavior of metal ions by the mixtures [8].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Extraction Ability between a Mixture of Alamine 336/Aliquat 336 and D2EHPA and Ionic Liquid ALi-D2 from Weak Hydrochloric Acid Solution

Nguyen

Lee

2020

Metals

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The development of extraction systems to improve the extraction efficiency of metals using commercial extractants and ionic liquids is of importance. The extraction behavior of Co(II) between mixture of Alamine 336/Aliquat 336 and D2EHPA and synthesized ionic liquid ALi-D2 was compared in this work. Some factors, such as equilibrium pH, properties of the extractants, and concentration of components in the mixture had a remarkable effect on the extraction of Co(II). The interactions occurring in the mixtures as well as the change in solution pH were analyzed. Co(II) was completely extracted by ionic liquid when equilibrium pH was higher than 6.5, while it was difficult to extract Co(II) by employing the mixture of D2EHPA and Alamine 336/Aliquat 336. The formation of ionic liquid in the mixture of D2EHPA and Aliquat 336 was verified through FT-IR spectra. In addition, the competition extraction of hydrogen ion and Co(II) by ionic liquid ALi-D2 was explained. Among the three kinds of extractants, the ionic liquid showed the best extraction efficiency for Co(II) and pH control from weak acidic solutions. The present study provides valuable information on the extraction behavior of metal ion by the mixtures of commercial extractants, and thus can give some light on the development of metal extraction systems.

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Binary extraction of lanthanide(III) chlorides using carboxylates and dialkylphosphates of secondary and tertiary amines

Cited by 28 publications

References 13 publications

Binary extraction of lanthanides (III) nitrates with carboxylates and dialkylphosphates of secondary and tertiary amines

Binary extraction of lanthanides (III) nitrates with carboxylates and dialkylphosphates of secondary and tertiary amines

Solvent Extraction the Nitrate of Lanthanide (III) Binary Mixtures Extragents $ Carboxylate and Dialkyl Phosphate Amines

Comparison of Extraction Ability between a Mixture of Alamine 336/Aliquat 336 and D2EHPA and Ionic Liquid ALi-D2 from Weak Hydrochloric Acid Solution

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