使用 4-叔丁基-2-(α-甲基苄基)苯酚-二(2-乙基己基)磷酸协同体系从无碱溶液中提取铯:从盐湖卤水中分离铯盐的概念工艺流程表

IF 4.8 2区 材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING
Xinyu Cheng , Dong Shi , Yuze Zhang , Xiaowu Peng , Shaolei Xie , Lijuan Li , Yong Niu , Yuxuan Wang , Fugen Song
{"title":"使用 4-叔丁基-2-(α-甲基苄基)苯酚-二(2-乙基己基)磷酸协同体系从无碱溶液中提取铯:从盐湖卤水中分离铯盐的概念工艺流程表","authors":"Xinyu Cheng ,&nbsp;Dong Shi ,&nbsp;Yuze Zhang ,&nbsp;Xiaowu Peng ,&nbsp;Shaolei Xie ,&nbsp;Lijuan Li ,&nbsp;Yong Niu ,&nbsp;Yuxuan Wang ,&nbsp;Fugen Song","doi":"10.1016/j.hydromet.2024.106353","DOIUrl":null,"url":null,"abstract":"<div><p>Cesium is an important strategic resource, and solvent extraction is the most frequently used technology for its extraction from various minerals and brines. However, this common method faces operational and cost problems owing to large alkali consumption. A synergistic extraction system consisting of 4-<em>tert</em>-butyl-2-(α-methylbenzyl) phenol (t-BAMBP) and di-(2-ethylhexyl) phosphoric acid (D2EHPA) was designed and used to extract Cs<sup>+</sup> from an alkali-free solution. The effects of variables such as: (i) pH, (ii) concentration of t-BAMBP and D2EHPA, (iii) temperature, (iv) Cs<sup>+</sup> concentration, and (v) coexisting cations, on the Cs<sup>+</sup> extraction performance of the synergistic system were investigated. The most suitable organic phase composition was 1.0 mol/L t-BAMBP and 0.1 mol/L D2EHPA in kerosene, and the synergistic coefficient was up to 57 at 25 °C and an organic/aqueous phase volume ratio of 1/1. The extraction sequence of cations using the t-BAMBP–D2EHPA synergistic system followed the descending order Cs<sup>+</sup> &gt; Rb<sup>+</sup> &gt; Ca<sup>2+</sup> &gt; K<sup>+</sup> &gt; Li<sup>+</sup> &gt; Mg<sup>2+</sup> &gt; Na<sup>+</sup>. The chemical formula of the extracted species was determined as [CsA(HA)(ROH)<sub>2</sub>] using the slope method. The Cs<sup>+</sup> extraction process is an exothermic reaction with an enthalpy (<em>ΔH</em><sup><em>o</em></sup>) of −55.3 kJ mol<sup>−1</sup>, confirmed by the thermodynamic study. After three-stage countercurrent extraction, the extraction efficiency of Cs<sup>+</sup> was 92.6%, demonstrating excellent selectivity from coexisting cations. The t-BAMBP–D2EHPA synergistic system showed outstanding economic and environmental advantages and a good application prospect to develop a conceptual process flowsheet for extraction with this system and stripping with HCl to separate cesium salt from salt-lake brine.</p></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cesium extraction from an alkali-free solution using a 4-tert-butyl-2-(α-methylbenzyl) phenol–di-(2-ethylhexyl) phosphoric acid synergistic system: A conceptual process flowsheet for separating cesium salt from salt-lake brine\",\"authors\":\"Xinyu Cheng ,&nbsp;Dong Shi ,&nbsp;Yuze Zhang ,&nbsp;Xiaowu Peng ,&nbsp;Shaolei Xie ,&nbsp;Lijuan Li ,&nbsp;Yong Niu ,&nbsp;Yuxuan Wang ,&nbsp;Fugen Song\",\"doi\":\"10.1016/j.hydromet.2024.106353\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Cesium is an important strategic resource, and solvent extraction is the most frequently used technology for its extraction from various minerals and brines. However, this common method faces operational and cost problems owing to large alkali consumption. A synergistic extraction system consisting of 4-<em>tert</em>-butyl-2-(α-methylbenzyl) phenol (t-BAMBP) and di-(2-ethylhexyl) phosphoric acid (D2EHPA) was designed and used to extract Cs<sup>+</sup> from an alkali-free solution. The effects of variables such as: (i) pH, (ii) concentration of t-BAMBP and D2EHPA, (iii) temperature, (iv) Cs<sup>+</sup> concentration, and (v) coexisting cations, on the Cs<sup>+</sup> extraction performance of the synergistic system were investigated. The most suitable organic phase composition was 1.0 mol/L t-BAMBP and 0.1 mol/L D2EHPA in kerosene, and the synergistic coefficient was up to 57 at 25 °C and an organic/aqueous phase volume ratio of 1/1. The extraction sequence of cations using the t-BAMBP–D2EHPA synergistic system followed the descending order Cs<sup>+</sup> &gt; Rb<sup>+</sup> &gt; Ca<sup>2+</sup> &gt; K<sup>+</sup> &gt; Li<sup>+</sup> &gt; Mg<sup>2+</sup> &gt; Na<sup>+</sup>. The chemical formula of the extracted species was determined as [CsA(HA)(ROH)<sub>2</sub>] using the slope method. The Cs<sup>+</sup> extraction process is an exothermic reaction with an enthalpy (<em>ΔH</em><sup><em>o</em></sup>) of −55.3 kJ mol<sup>−1</sup>, confirmed by the thermodynamic study. After three-stage countercurrent extraction, the extraction efficiency of Cs<sup>+</sup> was 92.6%, demonstrating excellent selectivity from coexisting cations. The t-BAMBP–D2EHPA synergistic system showed outstanding economic and environmental advantages and a good application prospect to develop a conceptual process flowsheet for extraction with this system and stripping with HCl to separate cesium salt from salt-lake brine.</p></div>\",\"PeriodicalId\":13193,\"journal\":{\"name\":\"Hydrometallurgy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hydrometallurgy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304386X24000938\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrometallurgy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304386X24000938","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0

摘要

铯是一种重要的战略资源,溶剂萃取是从各种矿物和盐水中提取铯的最常用技术。然而,由于耗碱量大,这种常用方法面临着操作和成本问题。研究人员设计了一种由 4-叔丁基-2-(α-甲基苄基)苯酚(t-BAMBP)和二(2-乙基己基)磷酸(D2EHPA)组成的协同萃取系统,用于从无碱溶液中萃取 Cs+。下列变量的影响研究了 (i) pH 值、(ii) t-BAMBP 和 D2EHPA 的浓度、(iii) 温度、(iv) Cs+ 浓度和 (v) 共存阳离子等变量对协同系统 Cs+ 提取性能的影响。最合适的有机相组成为煤油中 1.0 mol/L t-BAMBP 和 0.1 mol/L D2EHPA,在 25 °C、有机相/水相体积比为 1/1 时,协同系数高达 57。使用 t-BAMBP-D2EHPA 增效体系萃取阳离子的顺序为 Cs+ > Rb+ > Ca2+ > K+ > Li+ > Mg2+ > Na+。用斜率法测定提取物的化学式为[CsA(HA)(ROH)2]。热力学研究证实,Cs+萃取过程是一个放热反应,其焓(ΔHo)为-55.3 kJ mol-1。经过三级逆流萃取后,Cs+ 的萃取效率为 92.6%,显示了对共存阳离子的良好选择性。t-BAMBP-D2EHPA协同系统显示出突出的经济和环境优势,并具有良好的应用前景,可开发出利用该系统萃取并用盐酸汽提从盐湖卤水中分离铯盐的概念工艺流程表。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cesium extraction from an alkali-free solution using a 4-tert-butyl-2-(α-methylbenzyl) phenol–di-(2-ethylhexyl) phosphoric acid synergistic system: A conceptual process flowsheet for separating cesium salt from salt-lake brine

Cesium is an important strategic resource, and solvent extraction is the most frequently used technology for its extraction from various minerals and brines. However, this common method faces operational and cost problems owing to large alkali consumption. A synergistic extraction system consisting of 4-tert-butyl-2-(α-methylbenzyl) phenol (t-BAMBP) and di-(2-ethylhexyl) phosphoric acid (D2EHPA) was designed and used to extract Cs+ from an alkali-free solution. The effects of variables such as: (i) pH, (ii) concentration of t-BAMBP and D2EHPA, (iii) temperature, (iv) Cs+ concentration, and (v) coexisting cations, on the Cs+ extraction performance of the synergistic system were investigated. The most suitable organic phase composition was 1.0 mol/L t-BAMBP and 0.1 mol/L D2EHPA in kerosene, and the synergistic coefficient was up to 57 at 25 °C and an organic/aqueous phase volume ratio of 1/1. The extraction sequence of cations using the t-BAMBP–D2EHPA synergistic system followed the descending order Cs+ > Rb+ > Ca2+ > K+ > Li+ > Mg2+ > Na+. The chemical formula of the extracted species was determined as [CsA(HA)(ROH)2] using the slope method. The Cs+ extraction process is an exothermic reaction with an enthalpy (ΔHo) of −55.3 kJ mol−1, confirmed by the thermodynamic study. After three-stage countercurrent extraction, the extraction efficiency of Cs+ was 92.6%, demonstrating excellent selectivity from coexisting cations. The t-BAMBP–D2EHPA synergistic system showed outstanding economic and environmental advantages and a good application prospect to develop a conceptual process flowsheet for extraction with this system and stripping with HCl to separate cesium salt from salt-lake brine.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Hydrometallurgy
Hydrometallurgy 工程技术-冶金工程
CiteScore
9.50
自引率
6.40%
发文量
144
审稿时长
3.4 months
期刊介绍: Hydrometallurgy aims to compile studies on novel processes, process design, chemistry, modelling, control, economics and interfaces between unit operations, and to provide a forum for discussions on case histories and operational difficulties. Topics covered include: leaching of metal values by chemical reagents or bacterial action at ambient or elevated pressures and temperatures; separation of solids from leach liquors; removal of impurities and recovery of metal values by precipitation, ion exchange, solvent extraction, gaseous reduction, cementation, electro-winning and electro-refining; pre-treatment of ores by roasting or chemical treatments such as halogenation or reduction; recycling of reagents and treatment of effluents.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信