Separation and Purification of Magnesium, Lead, and Neodymium from Dissolver Solution of Irradiated Fuel

Ramakumar, K. L.; Aggarwal, Shruti; Kavimandan, V. D.; Raman, V.A.; Khodade, P. S.; Jain, H. C.; Mathews, C.K.

doi:10.1080/01496398008056098

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…For validation of method using ID-TIMS, all the aliquots were subjected to necessary chemical treatments to ensure depolymerisation and proper isotopic homogenization. The spiked and unspiked aliquots were used for separation by anion exchange using Dowex 1 × 8, 200 -400 mesh resin in 9 M HCl medium [8]. The effluent containing Th and fission product fraction was collected.…”

Section: Methodsmentioning

confidence: 99%

“…The fraction containing Th and fission products was subjected to a second stage anion-exchange separation using Dowex 1 × 8200 -400 mesh resin in 7 M HNO 3 medium. The non-retained fission product fraction was collected and subjected to a third stage separation using Bio-Rad AG 1 × 2200 -400 in a mixture containing HNO 3 and MeOH to separate Nd fraction [8].…”

Section: Methodsmentioning

confidence: 99%

“…The destructive method involved dissolution of fuels followed by individual separation and determination of fission products and heavy elements. Isotope dilution-thermal ionization mass spectrometry (ID-TIMS) is an established method for the determination of burn-up [5,7,8].…”

Section: Introductionmentioning

confidence: 99%

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Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α-Hydroxyiso Butyric Acid (α-HIBA)

Kumar¹,

Jaison²,

Telmore³

et al. 2013

IJAMSC

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An HPLC method is presented for the separation and determination of lanthanides (Lns), thorium (Th), uranium (U) and plutonium (Pu) from irradiated (Th, Pu)O 2 . Individual separation of Lns, Th, U and Pu is a challenging task because of 1) lanthanides having similar physical and chemical properties, 2) presence of complex matrix like irradiated fuel and 3) the co-existence of multiple oxidation states of Pu. Different procedures were developed for separation of individual lanthanides and actinides. The individual lanthanides were separated on a dynamically modified reversed phase (RP) column using n-octane sulfonic acid as an ion interaction reagent and employing dual gradient (pH and concentration) of α-hydroxyisobutyric acid (HIBA). In order to improve the precision on the determination of Lns, terbium (Tb) was used as an internal standard. The method was validated employing simulated high level liquid waste. Concentrations of lanthanides viz. lanthanum (La) and neodymium (Nd) in the dissolver solution were determined based on their peak areas. Th, U and Pu were separated on a RP column using mobile phase containing HIBA and methanol. Since Pu is prone to exist in multiple oxidation states, all the oxidation states were converted into Pu (IV) using H 2 O 2 in 3 M HNO 3 . Under the optimized conditions, Pu(IV) eluted first followed by Th and U. The concentrations of Th, U and Pu were determined by standard addition method and were found to be 1.10 ± 0.02 mg/g, 5.3 ± 0.3 µg/g and 27 ± 1 µg/g, respectively, in the dissolver solution of irradiated fuel. These values were in good agreement with the concentration of Th determined by biamperometry and those of U and Pu by isotope dilution thermal ionization mass spectrometry.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α-Hydroxyiso Butyric Acid (α-HIBA)

Kumar¹,

Jaison²,

Telmore³

et al. 2013

IJAMSC

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“…In each aliquot Sr and REE were separated using BIORAD ® AG 50W-× 8, 200-400 mesh cation exchange resin column (17 cm × 0.8 cm) in 2.5N and 6N HCl media respectively (Sarkar et al, 1996). Sm and Nd were subsequently separated from the bulk REE fraction using BIO-RAD 1 × 2, 200-400 mesh anion exchange resin column (4 cm × 0.4 cm) following the method of Ramakumar et al (1980). REE fraction, collected from the first column, was taken into 90% CH 3 OH + 10% 7.5 N HNO 3 medium and loaded into a second column preconditioned with 90% CH 3 OH + 10% 7.5 N HNO 3 .…”

Section: Analytical Proceduresmentioning

confidence: 99%

Sm-Nd age and mantle source characteristics of the Dhanjori volcanic rocks, Eastern India.

et al. 2002

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“…Sr and REE were separated from each aliquot by using DOWEX 50W-× 8 200-400 mesh cation exchange resin column (17 cm × 0.8 cm) in 2.5 N and 6 N HCl medium respectively (Sarkar et al 1996). Sm and Nd were subsequently separated from the bulk REE fraction following the modified method of Ramakumar et al (1980). The REE fraction was dried and taken into 90% CH 3 OH + 10% 7.5 N HNO 3 medium and loaded onto BIO-RAD AG 1 × 2 − 200-400 mesh anion exchange resin column (4 cm × 0.4 cm).…”

Section: Analytical Techniquesmentioning

confidence: 99%

Late Archaean mantle metasomatism below eastern Indian craton: Evidence from trace elements, REE geochemistry and Sr—Nd—O isotope systematics of ultramafic dykes

et al. 2004

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Trace, rare earth elements (REE), Rb-Sr, Sm-Nd and O isotope studies have been carried out on ultramafic (harzburgite and lherzolite) dykes belonging to the newer dolerite dyke swarms of eastern Indian craton. The dyke swarms were earlier considered to be the youngest mafic magmatic activity in this region having ages not older than middle to late Proterozoic. The study indicates that the ultramafic members of these swarms are in fact of late Archaean age (Rb-Sr isochron age 2613 ± 177 Ma, Sr i ∼ 0.702 ± 0.004) which attests that out of all the cratonic blocks of India, eastern Indian craton experienced earliest stabilization event. Primitive mantle normalized trace element plots of these dykes display enrichment in large ion lithophile elements (LILE), pronounced Ba, Nb and Sr depletions but very high concentrations of Cr and Ni. Chondrite normalised REE plots exhibit light REE (LREE) enrichment with nearly flat heavy REE (HREE; (ΣHREE) N ∼ 2-3 times chondrite, (Gd/Yb) N ∼ 1). The ε Nd (t) values vary from +1.23 to −3.27 whereas δ 18 O values vary from +3.16‰ to +5.29‰ (average +3.97‰ ± 0.75‰) which is lighter than the average mantle value. Isotopic, trace and REE data together indicate that during 2.6 Ga the nearly primitive mantle below the eastern Indian Craton was metasomatised by the fluid (± silicate melt) coming out from the subducting early crust resulting in LILE and LREE enriched, Nb depleted, variable ε Nd , low Sr i (0.702) and low δ 18 O bearing EMI type mantle. Magmatic blobs of this metasomatised mantle were subsequently emplaced in deeper levels of the granitic crust which possibly originated due to the same thermal pulse.

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Separation and Purification of Magnesium, Lead, and Neodymium from Dissolver Solution of Irradiated Fuel

Cited by 9 publications

References 3 publications

Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α-Hydroxyiso Butyric Acid (α-HIBA)

Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α-Hydroxyiso Butyric Acid (α-HIBA)

Sm-Nd age and mantle source characteristics of the Dhanjori volcanic rocks, Eastern India.

Late Archaean mantle metasomatism below eastern Indian craton: Evidence from trace elements, REE geochemistry and Sr—Nd—O isotope systematics of ultramafic dykes

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