Extraction of zirconium and hafnium in polyethylene glycol-based aqueous biphasic system

Marek Smolik; Agata Jakóbik-Kolon; MacIej Poranski

doi:10.1080/01496390701310488

Extraction of zirconium and hafnium in polyethylene glycol-based aqueous biphasic system

Marek Smolik
, Agata Jakóbik-Kolon
, MacIej Poranski

Katedra Chemii Nieorganicznej, Analitycznej i Elektrochemii (RCH/RCH1)

Silesian University of Technology
Energotest-Energopomiar

Wyniki badań: Wkład do czasopisma › Artykuł › recenzja

9 Cytowania z bazy Scopus

Abstrakt

The behavior of zirconium and hafnium in PEG 2000-Na2SO4-HCl aqueous biphasic system has been investigated. The dependences of HCl concentration (0.185-0.55M), extraction temperature (298-318K), and extraction time (5-120min) on distribution ratios have been determined. Extraction of this metals in PEG 2000-Na2SO4-H2SO4 and PEG 2000-Na3Cit-HCl systems has been also studied. The sulfate and citrate complexes of Zr and Hf prefer salt-rich phase in contrast to chloride complexes which pass into PEG rich phase in about 50% (w/w) to the greatest degree in room temperature and at short extraction time. The increase of distribution ratios (D*Zr=3.75, D*Hf=4.31) was observed after addition of water soluble organic ligand - tiron (4,5-dihydroxy-m benzenedisulfonic acid disodium salt). The results obtained in studied conditions are not very useful for the separation of zirconium and hafnium.

Język oryginału	angielski
Strony (od–do)	1831-1841
Liczba stron	11
Czasopismo	Separation Science and Technology
Tom	42
Numer wydania	8
Identyfikatory DOI	https://doi.org/10.1080/01496390701310488
Status publikacji	Opublikowano - cze 2007

Obszary tematyczne ASJC Scopus

Chemia ogólna
Ogólna inżynieria chemiczna
Chemia i technologia procesów
Filtracja i separacja

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10.1080/01496390701310488

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title = "Extraction of zirconium and hafnium in polyethylene glycol-based aqueous biphasic system",

abstract = "The behavior of zirconium and hafnium in PEG 2000-Na2SO4-HCl aqueous biphasic system has been investigated. The dependences of HCl concentration (0.185-0.55M), extraction temperature (298-318K), and extraction time (5-120min) on distribution ratios have been determined. Extraction of this metals in PEG 2000-Na2SO4-H2SO4 and PEG 2000-Na3Cit-HCl systems has been also studied. The sulfate and citrate complexes of Zr and Hf prefer salt-rich phase in contrast to chloride complexes which pass into PEG rich phase in about 50\% (w/w) to the greatest degree in room temperature and at short extraction time. The increase of distribution ratios (D*Zr=3.75, D*Hf=4.31) was observed after addition of water soluble organic ligand - tiron (4,5-dihydroxy-m benzenedisulfonic acid disodium salt). The results obtained in studied conditions are not very useful for the separation of zirconium and hafnium.",

keywords = "Aqueous biphasic system, Liquid extraction, Separation of hafnium and zirconium",

author = "Marek Smolik and Agata Jak{\'o}bik-Kolon and MacIej Poranski",

year = "2007",

month = jun,

doi = "10.1080/01496390701310488",

language = "English",

volume = "42",

pages = "1831--1841",

journal = "Separation Science and Technology",

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TY - JOUR

T1 - Extraction of zirconium and hafnium in polyethylene glycol-based aqueous biphasic system

AU - Smolik, Marek

AU - Jakóbik-Kolon, Agata

AU - Poranski, MacIej

PY - 2007/6

Y1 - 2007/6

N2 - The behavior of zirconium and hafnium in PEG 2000-Na2SO4-HCl aqueous biphasic system has been investigated. The dependences of HCl concentration (0.185-0.55M), extraction temperature (298-318K), and extraction time (5-120min) on distribution ratios have been determined. Extraction of this metals in PEG 2000-Na2SO4-H2SO4 and PEG 2000-Na3Cit-HCl systems has been also studied. The sulfate and citrate complexes of Zr and Hf prefer salt-rich phase in contrast to chloride complexes which pass into PEG rich phase in about 50% (w/w) to the greatest degree in room temperature and at short extraction time. The increase of distribution ratios (D*Zr=3.75, D*Hf=4.31) was observed after addition of water soluble organic ligand - tiron (4,5-dihydroxy-m benzenedisulfonic acid disodium salt). The results obtained in studied conditions are not very useful for the separation of zirconium and hafnium.

AB - The behavior of zirconium and hafnium in PEG 2000-Na2SO4-HCl aqueous biphasic system has been investigated. The dependences of HCl concentration (0.185-0.55M), extraction temperature (298-318K), and extraction time (5-120min) on distribution ratios have been determined. Extraction of this metals in PEG 2000-Na2SO4-H2SO4 and PEG 2000-Na3Cit-HCl systems has been also studied. The sulfate and citrate complexes of Zr and Hf prefer salt-rich phase in contrast to chloride complexes which pass into PEG rich phase in about 50% (w/w) to the greatest degree in room temperature and at short extraction time. The increase of distribution ratios (D*Zr=3.75, D*Hf=4.31) was observed after addition of water soluble organic ligand - tiron (4,5-dihydroxy-m benzenedisulfonic acid disodium salt). The results obtained in studied conditions are not very useful for the separation of zirconium and hafnium.

KW - Aqueous biphasic system

KW - Liquid extraction

KW - Separation of hafnium and zirconium

UR - https://www.scopus.com/pages/publications/34547448739

U2 - 10.1080/01496390701310488

DO - 10.1080/01496390701310488

M3 - Article

AN - SCOPUS:34547448739

SN - 0149-6395

VL - 42

SP - 1831

EP - 1841

JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 8

ER -

Extraction of zirconium and hafnium in polyethylene glycol-based aqueous biphasic system

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