酸性氯化物条件下LIX63羟肟与镍配合物的化学计量

IF 1.8 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction and Ion Exchange Pub Date : 2021-10-25 DOI:10.1080/07366299.2021.1992891

K. R. Barnard, L. Zeng, D. Shiers

{"title":"酸性氯化物条件下LIX63羟肟与镍配合物的化学计量","authors":"K. R. Barnard, L. Zeng, D. Shiers","doi":"10.1080/07366299.2021.1992891","DOIUrl":null,"url":null,"abstract":"ABSTRACT The extraction of nickel by LIX® 63 hydroxyoxime (‘hydroxyoxime’) under acidic (10–100 g/L hydrochloric acid) chloride conditions was investigated with the intent of determining the stoichiometry of the resulting complex in solution. Maximum loading and continuous variation tests indicate that nickel is extracted as a cationic salt with chloride counter-ions, the resulting complex exhibiting octahedral coordination with 1:3:2 nickel:hydroxyoxime:chloride stoichiometry. This species is also observed to readily form under mildly acidic (pH 1–4) chloride conditions, with the extent of formation being independent of pH. Nickel extraction kinetics were moderately fast, equilibrium being reached in 10 minutes. The behaviour of this system helps to provide clarity in relation to complex stoichiometry and the role of different ligands in synergistic systems utilising LIX 63 and an organic acid such as Versatic 10, opening up the possibility of nickel extraction from acidic chloride media using LIX 63.","PeriodicalId":22002,"journal":{"name":"Solvent Extraction and Ion Exchange","volume":"40 1","pages":"477 - 492"},"PeriodicalIF":1.8000,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Stoichiometry of the Nickel Complex Formed with LIX 63 Hydroxyoxime under Acidic Chloride Conditions\",\"authors\":\"K. R. Barnard, L. Zeng, D. Shiers\",\"doi\":\"10.1080/07366299.2021.1992891\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT The extraction of nickel by LIX® 63 hydroxyoxime (‘hydroxyoxime’) under acidic (10–100 g/L hydrochloric acid) chloride conditions was investigated with the intent of determining the stoichiometry of the resulting complex in solution. Maximum loading and continuous variation tests indicate that nickel is extracted as a cationic salt with chloride counter-ions, the resulting complex exhibiting octahedral coordination with 1:3:2 nickel:hydroxyoxime:chloride stoichiometry. This species is also observed to readily form under mildly acidic (pH 1–4) chloride conditions, with the extent of formation being independent of pH. Nickel extraction kinetics were moderately fast, equilibrium being reached in 10 minutes. The behaviour of this system helps to provide clarity in relation to complex stoichiometry and the role of different ligands in synergistic systems utilising LIX 63 and an organic acid such as Versatic 10, opening up the possibility of nickel extraction from acidic chloride media using LIX 63.\",\"PeriodicalId\":22002,\"journal\":{\"name\":\"Solvent Extraction and Ion Exchange\",\"volume\":\"40 1\",\"pages\":\"477 - 492\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2021-10-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solvent Extraction and Ion Exchange\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1080/07366299.2021.1992891\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solvent Extraction and Ion Exchange","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1080/07366299.2021.1992891","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 1

摘要

摘要研究了LIX®63羟基肟（“羟基肟”）在酸性（10–100 g/L盐酸）氯化物条件下萃取镍的方法，旨在确定溶液中生成的络合物的化学计量。最大负载和连续变化测试表明，镍是以阳离子盐的形式与氯抗衡离子萃取的，所得络合物与1:3:2的镍：羟基肟：氯化学计量显示出八面体配位。该物种在弱酸性（pH 1-4）氯化物条件下也很容易形成，形成程度与pH无关。镍提取动力学速度适中，10分钟内达到平衡。该系统的行为有助于澄清复杂化学计量以及不同配体在使用LIX63和有机酸（如Versatic 10）的协同系统中的作用，从而为使用LIX6从酸性氯化物介质中提取镍开辟了可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Stoichiometry of the Nickel Complex Formed with LIX 63 Hydroxyoxime under Acidic Chloride Conditions

ABSTRACT The extraction of nickel by LIX® 63 hydroxyoxime (‘hydroxyoxime’) under acidic (10–100 g/L hydrochloric acid) chloride conditions was investigated with the intent of determining the stoichiometry of the resulting complex in solution. Maximum loading and continuous variation tests indicate that nickel is extracted as a cationic salt with chloride counter-ions, the resulting complex exhibiting octahedral coordination with 1:3:2 nickel:hydroxyoxime:chloride stoichiometry. This species is also observed to readily form under mildly acidic (pH 1–4) chloride conditions, with the extent of formation being independent of pH. Nickel extraction kinetics were moderately fast, equilibrium being reached in 10 minutes. The behaviour of this system helps to provide clarity in relation to complex stoichiometry and the role of different ligands in synergistic systems utilising LIX 63 and an organic acid such as Versatic 10, opening up the possibility of nickel extraction from acidic chloride media using LIX 63.

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

Solvent Extraction and Ion Exchange 化学-化学综合

CiteScore

4.40

自引率

5.00%

发文量

审稿时长

8.4 months

期刊介绍： Solvent Extraction and Ion Exchange is an international journal that publishes original research papers, reviews, and notes that address all aspects of solvent extraction, ion exchange, and closely related methods involving, for example, liquid membranes, extraction chromatography, supercritical fluids, ionic liquids, microfluidics, and adsorption. We welcome submissions that look at: The underlying principles in solvent extraction and ion exchange; Solvent extraction and ion exchange process development; New materials or reagents, their syntheses and properties; Computational methods of molecular design and simulation; Advances in equipment, fluid dynamics, and engineering; Interfacial phenomena, kinetics, and coalescence; Spectroscopic and diffraction analysis of structure and dynamics; Host-guest chemistry, ion receptors, and molecular recognition.