Separation of zirconium from hafnium by ion exchange

Felipe, Elaine Cristina Batista; Ladeira, Ana Cláudia Queiroz

doi:10.1080/01496395.2017.1385624

Cited by 16 publications

(14 citation statements)

References 22 publications

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“…irkonium (Zr) merupakan salah satu bahan penting dalam industri nuklir maupun non nuklir karena mempunyai sifat tahan korosi pada suhu tinggi dan memiliki sifat fisis yang baik, sehingga kegunaannya dalam industri moderen sangat diperlukan [1,2]. Dalam reaktor nuklir zirkonium terutama digunakan sebagai kelongsong elemen bakar karena mempunyai tampang lintang serapan neutron termal yang rendah (0,185 barn) [1][2][3][4][5][6].…”

Section: Pendahuluanunclassified

“…Dalam reaktor nuklir zirkonium terutama digunakan sebagai kelongsong elemen bakar karena mempunyai tampang lintang serapan neutron termal yang rendah (0,185 barn) [1][2][3][4][5][6]. Zirkonium dalam bentuk zirconium carbide (ZrC) dapat digunakan sebagai partikel pelapis pengganti silicon carbide (SiC) pada elemen bahan bakar tristructural isotropic (TRISO) Reaktor Suhu Tinggi (RST) [3,4,5].…”

Section: Pendahuluanunclassified

“…Zirkonium agar dapat dipakai sebagai bahan strategis dalam reaktor nuklir, harus bersih dari pengotornya terutama dari unsur hafnium (Hf) karena mempunyai penampang lintang penyerap neutron yang tinggi yaitu 102 barn. Dalam reaktor nuklir hafnium digunakan sebagai batang kendali [1,2,4,6]. Oleh karena itu persyaratan Zr supaya bisa dipakai dalam reaktor harus mempunyai kemurnian yang tinggi dengan kadar maksimal pengotor Hf 100 ppm [1,2,4,5,7].…”

Section: Pendahuluanunclassified

“…Dalam reaktor nuklir hafnium digunakan sebagai batang kendali [1,2,4,6]. Oleh karena itu persyaratan Zr supaya bisa dipakai dalam reaktor harus mempunyai kemurnian yang tinggi dengan kadar maksimal pengotor Hf 100 ppm [1,2,4,5,7].…”

Section: Pendahuluanunclassified

“…Zirkonium dan hafnium mempunyai sifat kimia yang sangat mirip sehingga pemisahannya sangat sulit, maka diperlukan cara pemisahan kimia antara lain dengan proses ekstraksi dan penukar ion [1][2][3][4][5][6]. Meskipun demikian ada perbedaan di antaranya yaitu jari-jari ion, untuk zirkonium jari-jari ionnya sebesar 0,74 Å dan hafnium sebesar 0,75 Å densitas Zr = 6,49 g/cm 3 dan Hf = 13,31 g/cm 3 , nomor atom Zr = 40 dan Hf = 91,2.…”

Section: Pendahuluanunclassified

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PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16

Biyantoro

Sukarna²,

Suyanto³

2017

gmin

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SEPARATION ZIRCONIUM (Zr) AND HAFNIUM (Hf) USING SOLVENT MIXTURE OF TBP-D2EHPA AND AMBERLITE XAD-16. The aims of this research were to determine the composition (ratio of extractant and resin) of the SIR which is effective for the separation of Zr and Hf, knowing adsorption equilibrium models Zr and Hf using the SIR, and knowing the most effective adsorption results from SIR weight ratio.The research was conducted by using the SIR method that is impregnating the extractant into the resin. Extractant used is a mixture of TBP and D2EHPA (1 : 3), the resin used is and

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Section: Pendahuluanunclassified

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PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16

Biyantoro

Sukarna²,

Suyanto³

2017

gmin

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Assessment of zinc ferrite nanocrystals for removal of 134Cs and 152+154Eu radionuclides from nitric acid solution

Hassan

Maksoud

Attia

2019

J Mater Sci: Mater Electron

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Efficacious Recovery of Zirconium and Yttrium Ions from Effluents Using a Gamma-Irradiated Reduced Graphene Oxide Polymeric Composite

Eliwa

2023

J Inorg Organomet Polym

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There are many great uses for heavy elements that are expanding daily and generating enormous amounts of effluents. Therefore, tremendous scientific efforts in removing, recovering, and recycling them are carried out to prevent these harmful effects on the environment and human health. The polyacrylic-carboxymethyl cellulose-trioctyl amine/reduced graphene oxide adsorbent (AA-CMC-TOA/rGO) was synthesized as a promising sorbent for Zr4+ and Y3+ ions by gamma irradiation for a mixture of acrylic acid, carboxymethyl cellulose, and trioctyl amine as an organic solvent. A complete characterization of the manufactured composite was carried out to find out its chemical and physical properties several techniques such as XRD, EDX, SEM, FT-IR, TGA-DTA, and BET. Several factors affecting the Zr4+ and Y3+ adsorption processes were studied to set the best conditions that achieve the extreme loading capacity of Zr4+ and Y3+ ions. Loading capacities of 0.99 and 1.07 mmol g−1 were achieved for Zr4+ and Y3+, respectively. The results of the kinetic models indicated that the adsorption reactions of Zr4+ and Y3+ ions were carried out via a chemical reaction mechanism. Langmuir, Dubinin–Radushkevich, and Redlich–Peterson models accurately described the adsorption isotherm data by proving their chemical nature. The results of thermodynamics added evidence of the chemical nature, spontaneous, and endothermic nature of the adsorption processes. A complete retrieval for Zr4+ and Y3+ ions contents located in the effluent was efficiently achieved using AA-CMC-TOA/rGO sorbent which proved its uses as a promising sorbent.

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Separation of zirconium from hafnium by ion exchange

Cited by 16 publications

References 22 publications

PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16

PEMISAHAN ZIRKONIUM (Zr) DAN HAFNIUM (Hf) MEMAKAI CAMPURAN SOLVEN TBP-D2EHPA DAN AMBERLITE XAD-16

Assessment of zinc ferrite nanocrystals for removal of 134Cs and 152+154Eu radionuclides from nitric acid solution

Efficacious Recovery of Zirconium and Yttrium Ions from Effluents Using a Gamma-Irradiated Reduced Graphene Oxide Polymeric Composite

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