Extraction of Neodymium (III) from Neodymium Concentrate Using Synergistic Solvent D2EHPA, TOPO and TBP

Iraqi phosphate ore deposits have been ascertained to be the second global reserve after Morocco, it has been utilized successfully at Al-Qaim phosphate fertilizers complex in the period 1983-2009. The deposit has valuable content of rare piles of earth and uranium, which is expected to have a good impact on the Iraqi economy if they are recovered from the ore. In the present study, solvent extraction was employed for the extraction of the rare earth elements (REEs), tributyl phosphate (TBP) in kerosene was utilized for extracting ytterbium, yttrium, erbium, and lanthanum from an aqueous solution made via the nitric acid (HNO3) leaching of the concentrate of the Iraqi apatite ore. In the extraction stage, the effect of the concentration of TBP (1, 2, 3, and 3.5) M, contact time (1, 3,5,7,9, and 11) min, and the phase ratio (organic/aqueous) (1/4, 1/3, 1/2, 1/1, 2/1, 3/1, 4/1) were studied. The outcomes manifested, that around 92.9%, 98%, 90.4%, and 98.3% of yttrium, ytterbium, erbium, and lanthanum, respectively were extracted at the best extraction conditions of 3M TBP , 4/1 organic to aqueous phase ratio and 7 min contact time.

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“…[12]. Molecular TBP interactions in the organic phase might be ascribed to the decreasing extraction percent after 3M [13].…”

Section: Extraction Of Reesmentioning

confidence: 99%

“…It's clear that the (REEs) extraction increased when the (TBP) concentration reached the level of 3 M, where after getting decreased[12]. Molecular TBP interactions in the organic phase might be ascribed to the decreasing extraction percent after 3M[13].…”

mentioning

confidence: 99%

Extraction of Rare Earth Elements from Iraqi Phosphate Ore by Using of Tributyl Phosphate

Abbass

Jalhoom

Kadhim

2020

ETJ

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“…However, the limited availability and rising demand for neodymium have led to increased efforts to recover this metal from both primary and secondary sources. These recovery processes conserve the resources and protect the environment from solid wastes and wastewater effluents containing Nd and lessen adverse environmental consequences. , In this context, different techniques have been developed to recover Nd from aqueous media such as solvent extraction, − reverse osmosis, coagulation and flocculation, − membrane separation, and ion exchange . Several of these techniques have drawbacks, including high costs, significant energy consumption, and potential inefficiency in complex matrices, particularly at trace levels.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Neodymium from the Aqueous Phase Using Fabricated Magnetic Chitosan-Functionalized Graphene Oxide Composites

Al-salem,

Nayl,

Alshammari

et al. 2024

ACS Omega

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This work reports the performances of the magnetic chitosan@graphene oxide composite (MCh@GO) for the sorption of Nd(III) from aqueous medium. The prepared composite was synthesized by a coprecipitation method and then examined by FT-IR, XRD, SEM, and TGA. XRD analysis proved physical interactions between magnetic chitosan and graphene oxide through (inter-and intramolecular H-bonding and peptide bonding). TGA data approved the thermal stability of the prepared MCh@GO nanocomposite over their constituents. The optimum pH for the sorption process was 4.5. The Langmuir model and PSO fitted the experimental data. The adsorption process was found to be endothermic and spontaneous with a Q max of 56.6 mg g −1 . Indeed, the MCh@GO composite proved to be an excellent adsorbent for the purification, remediation, and separation of Nd due to its promising properties.

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“…Nd and Cs isotopes are used in the nuclear industry as indicators of nuclear fuel burn-up [1,3]. In the nonnuclear industry, Nd is used as a magnetic material for fluorescent lamps, superconductors, lasers, ceramics, semiconductors, catalysts, thermal neutron absorbers [4,5], communication equipment components, batteries, and health diagnosis [6,7]. While Cs is used for standard calibration methods [8] and gamma-ray radiation sources [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of CsNO<sub>3</sub> on Neodymium (Nd) and Cesium (Cs) Recovery in Nuclear Fuel Using Precipitation Method

Kriswarini¹,

Noviarty

Noerpitasari

et al. 2023

MSF

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The addition of CsNO3 against Nd and Cs recovery in nuclear fuel using the precipitation method has been carried out. Precipitation methods have been carried out by previous researchers to separate cesium in U3Si2/Al and UMo/Al nuclear fuels. The recovery of cesium in the nuclear fuel obtained was more than 95%. After got optimal recovery for Cs separation, in this research would use the method for Nd separation. Beside the Cs isotope, the Nd isotope was the result of fission product after the radiation process of nuclear fuel in nuclear reactor. Both isotopes were used as burn-up indicators. To obtain optimal Nd recovery, in the separation process using the precipitation method, weight various CsNO3 are added. CsNO3 as a carrier in this method. The nuclear fuel solution containing Nd was added 100, 200, 400, 600 and 1000 mg of CsNO3. Then the mixed solution was added 4 mL of HClO4 and cooled at 0oC using an ice bath for 1 hour. A precipitate would form after cooling process for 1 hour. The liquid phase was separated from the solid phase. Then Nd and Cs in the liquid phase were analyzed using XRF. The analysis results of the Nd content in the liquid phase showed that the optimal recovery was 94.21% with the addition of 200 mg of CsNO3. While most of the Cs is in the solid phase with recovery greater than 99% on the addition of CsNO3 between 100-1000 mg.

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Extraction of Neodymium (III) from Neodymium Concentrate Using Synergistic Solvent D2EHPA, TOPO and TBP

Cited by 3 publications

References 6 publications

Extraction of Rare Earth Elements from Iraqi Phosphate Ore by Using of Tributyl Phosphate

Extraction of Rare Earth Elements from Iraqi Phosphate Ore by Using of Tributyl Phosphate

Adsorption Study of Neodymium from the Aqueous Phase Using Fabricated Magnetic Chitosan-Functionalized Graphene Oxide Composites

Effect of CsNO<sub>3</sub> on Neodymium (Nd) and Cesium (Cs) Recovery in Nuclear Fuel Using Precipitation Method

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