含二乙醇酰胺型三齿配体的各种金属的提取及光谱研究

IF 0.6 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction Research and Development, Japan Pub Date : 2019-01-01 DOI:10.15261/SERDJ.26.21

祐二佐々木, 盛久佐伯, 和治吉塚

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引用次数: 5

摘要

研制了O、N、S给体三种三叉齿萃取剂和三种掩蔽剂，并对其性能进行了比较和讨论。萃取剂为N,N,N′，N′-四辛基二醇酰胺(TODGA)、甲基氨基-N,N′-二辛基乙酰胺(MIDOA)和N,N,N′，N′-四辛基硫代二醇酰胺(TDGA(C8))以及具有相同中心框架但烷基链较短的掩蔽剂。本研究结果表明，TODGA主要能提取元素周期表中2 ~ 4、13 ~ 15族的硬酸性金属。MIDOA可以提取软酸性金属和氧离子(5-10、16基团)，TDGA可以提取软酸性金属(10-11基团)。一些分光光度法研究(UV-vis)。(红外和核磁共振)表明了化学计量学和给体原子对金属络合的影响。利用DFT理论进行化学计算得到的复杂地层产热ΔHf值与其萃取能力呈负相关。

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Extractions and Spectroscopic Studies of Various Metals with Diglycolamide-Type Tridentate Ligands

Three tridentate extractants and three masking reagents including O, N, and S donors have been developed and their properties are compared and discussed. The extractants are N,N,N′,N′-tetraoctyl-diglycolamide (TODGA), methylimino-N,N′-dioctylacetamide (MIDOA) and N,N,N′,N′-tetraoctyl-thiodiglycolamide (TDGA(C8)) together with masking agents having the same central frame but with short alkyl chains. The results of the present study indicate that TODGA can extract mainly hard acid metals belonging to groups 2-4,13-15 in the periodic table. MIDOA can extract soft acid metals and oxyanions (groups 5-10, 16), and TDGA can extract soft acid metals (groups 10-11). Some spectrophotometric studies (UV-vis., IR, and NMR) indicate the stoichiometry and the effect of donor atoms for metal-complexation. The ΔHf values, the heat generation during complex formation, obtained by chemical calculation by DFT theory show a reverse-correlation with their extraction ability.

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来源期刊

Solvent Extraction Research and Development, Japan 工程技术-工程：化工

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

1 months

期刊介绍： Solvent Extraction Research and Development, Japan (Solvent Extr. Res. Dev., Jpn.) is a periodical issued from Japan Association of Solvent Extraction (JASE) containing papers dealing with all aspects of solvent extraction and their related methods, underlying principles, and materials. Original articles, notes, technical reports, and critical reviews will be considered for publication. Original articles must be of reasonably broad scope and significance to the solvent extraction. Notes will originally describe novel work of a limited nature or especially significant work in progress. Authors can contribute some information of novel techniques, equipment or apparatus, reagents and diluents for solvent extraction as technical reports. Critical reviews will be received from the authors to whom the editorial committee asked to contribute.