迈向可持续电池回收：模型系统中氨基聚羧酸衍生物配体中镍（II）和钴（II）的选择性解吸

IF 1.5 4区工程技术 Q3 ENGINEERING, CHEMICAL

Chemie Ingenieur Technik Pub Date : 2024-11-09 DOI:10.1002/cite.202400041

M.Sc. Björn Robeck, M.Sc. Katharina Hoff, Dr. Helena Horn

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引用次数: 0

摘要

除其他外，由于对锂离子电池的高需求，所需的临界重金属已成为稀缺资源。因此，能够回收这些材料的有效的再循环过程是非常重要的。采用氨基聚羧酸衍生物配体功能化二氧化硅吸附剂（HSU331）选择性吸附镍（II）和钴（II）。随后，研究了变ph解吸的适宜参数。Co（II）的最大解吸效率在pH = 2.7时达到72%，Ni（II）在pH = - 0.5时达到94%。利用这些结果设计了一种ph移位解吸工艺，以选择性地回收Co(II)，并在同时吸附Co（II）和Ni（II）后再生吸附剂。

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Towards Sustainable Battery Recycling: Selective Desorption of Nickel(II) and Cobalt(II) from Amino-Polycarboxylate Derivate Ligands in Model Systems

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Towards Sustainable Battery Recycling: Selective Desorption of Nickel(II) and Cobalt(II) from Amino-Polycarboxylate Derivate Ligands in Model Systems

Inter alia due to the high demand for lithium-ion batteries, the required critical heavy metals have become a scarce resource. Consequently, effective recycling processes that enable the recovery of such materials are of high interest. A silica adsorbent functionalized with amino-polycarboxylate derivate ligands (HSU331) was applied in order to selectively adsorb nickel(II) and cobalt(II). Subsequently, suitable parameters for a pH-swing desorption were investigated. Maximum desorption efficiencies for Co(II) were achieved at pH = 2.7 (72 %) and for Ni(II) at pH = −0.5 (94 %). These results were used for the design of a pH-shift desorption process in order to selectively recover Co(II) and regenerate the adsorbent after simultaneous adsorption of Co(II) and Ni(II).

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来源期刊

Chemie Ingenieur Technik 工程技术-工程：化工

CiteScore

3.40

自引率

15.80%

发文量

601

审稿时长

3-6 weeks

期刊介绍： Die Chemie Ingenieur Technik ist die wohl angesehenste deutschsprachige Zeitschrift für Verfahrensingenieure, technische Chemiker, Apparatebauer und Biotechnologen. Als Fachorgan von DECHEMA, GDCh und VDI-GVC gilt sie als das unverzichtbare Forum für den Erfahrungsaustausch zwischen Forschern und Anwendern aus Industrie, Forschung und Entwicklung. Wissenschaftlicher Fortschritt und Praxisnähe: Eine Kombination, die es nur in der CIT gibt!