Selective extraction of Hf over Zr by a novel extractant (n-octyl)(2,4,4′-trimethylpentyl)phosphinic acid (INET-1) from sulfuric acid media

被引：4

作者：

Wang, Junlian ^{[1
,2
]}

Liu, Hui ^{[1
]}

Zhao, Hongru ^{[1
]}

Wang, Huajun ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China

[2] Key Lab Minist Educ Efficient Min & Safety Met Mi, Beijing 100083, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Hafnium; Zirconium; Solvent extraction; H2SO4; media; INET-1; SOLVENT-EXTRACTION; H2SO4; SOLUTIONS; SEPARATION; ZIRCONIUM; HAFNIUM; MIXTURE; REAGENT; D2EHPA;

D O I：

10.1007/s10967-022-08463-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new Zr/Hf separation system was developed with a novel unsymmetrical dialkylphosphinic acid extractant (n-octyl)(2,4,4'-trimethylpentyl)phosphinic acid (INET-1). It selectively extracts Hf over Zr, and shows much better Zr/Hf separation efficiency than organophosphorous acid Cyanex 272. The Zr and Hf extraction reactions at acidities of < 2 mol/L H2SO4 and > 5.5 mol/L H2SO4 are revealed, respectively. An organic phase with 10 mmol/L INET-1 can load > 290 mg/L of Hf at 1 mol/L H2SO4. Acidic H2SO4 solutions with concentration of 3.0-4.5 mol/L is a good Zr scrubbing agent.

引用

页码：2473 / 2485

页数：13

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[1] Selective extraction of Hf over Zr by a novel extractant (n-octyl)(2,4,4′-trimethylpentyl)phosphinic acid (INET-1) from sulfuric acid media
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Hui Liu
Hongru Zhao
Huajun Wang
Journal of Radioanalytical and Nuclear Chemistry, 2023, 332 : 2473 - 2485
[2] Correction: Selective extraction of Hf over Zr by a novel extractant (n-octyl)(2,4,4′-trimethylpentyl)phosphinic acid (INET-1) from sulfuric acid media
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[3] Selective extraction of Hf over Zr by a novel extractant (n-octyl)(2,4,4′-trimethylpentyl)phosphinic acid (INET-1) from sulfuric acid media (Aug, 10.1007/s10967-022-08463-2, 2022)
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