SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2025, Vol. 77 ›› Issue (1): 10-18.DOI: 10.1016/j.cjche.2024.10.003

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Synergistic solvent extraction system of bis(pyridin-2-ylmethyl) dodecan-1-amine and dinonylnaphthalene for enhanced selective extraction of nickel and cobalt

Bharat Prasad Sharma1,2, Tianzhang Wang3, Yufeng Liang3, Jinping Xiong1, Liangrong Yang2, Zheng Li2,4,5,6   

  1. 1. Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, China;
    2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
    4. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 101408, China;
    5. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    6. Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2024-07-08 修回日期:2024-10-11 接受日期:2024-10-12 出版日期:2025-01-28 发布日期:2024-11-02
  • 通讯作者: Yufeng Liang,E-mail:yfliang@sdu.edu.cn;Jinping Xiong,E-mail:xiongjp@mail.buct.edu.cn;Zheng Li,E-mail:zli@ipe.ac.cn
  • 基金资助:
    The study was supported by the National Natural Science Foundation of China (22278407, 22001147, 21922814, 22138012, 22178349), CAS Project for Young Scientists in Basic Research (YSBR-038), the Ministry of Science and Technology of China (2021YFC2901500), Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences (Y202014), and Shandong Energy Institute (SEI U202306).

Synergistic solvent extraction system of bis(pyridin-2-ylmethyl) dodecan-1-amine and dinonylnaphthalene for enhanced selective extraction of nickel and cobalt

Bharat Prasad Sharma1,2, Tianzhang Wang3, Yufeng Liang3, Jinping Xiong1, Liangrong Yang2, Zheng Li2,4,5,6   

  1. 1. Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing 100029, China;
    2. State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
    4. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 101408, China;
    5. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    6. Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2024-07-08 Revised:2024-10-11 Accepted:2024-10-12 Online:2025-01-28 Published:2024-11-02
  • Contact: Yufeng Liang,E-mail:yfliang@sdu.edu.cn;Jinping Xiong,E-mail:xiongjp@mail.buct.edu.cn;Zheng Li,E-mail:zli@ipe.ac.cn
  • Supported by:
    The study was supported by the National Natural Science Foundation of China (22278407, 22001147, 21922814, 22138012, 22178349), CAS Project for Young Scientists in Basic Research (YSBR-038), the Ministry of Science and Technology of China (2021YFC2901500), Excellent Member in Youth Innovation Promotion Association, Chinese Academy of Sciences (Y202014), and Shandong Energy Institute (SEI U202306).

摘要: Simultaneous recovery of Ni and Co from Fe(III) and Al is a critical challenge in hydrometallurgical processes. Recognized solvent extraction systems often struggle with selectivity and effective performance in mixed metal ion environments. Herein, a new synergistic solvent extraction (SSX) system comprised of a novel pyridine analog, N,N-bis(pyridin-2-ylmethyl) dodecan-1-amine (BPMDA), and dinonylnaphthalene sulfonic acid (DNNSA) with tributyl phosphate as phase modifier is introduced. The SSX system demonstrates high extraction performance achieving >90% for Ni and >97% for Co in a single-stage extraction process, with high selectivity. Under optimal conditions, the selectivity sequence is observed as Co2+ (>97%) > Ni2+ (>90%) > Mn2+ (<20%) > Fe3+ (<10%) > Mg2+ (<5%) > Al3+ (<2%) > Ca2+ (<1%). Spectroscopic analysis evidences the preferential binding of BPMDA with Ni and Co in the presence of DNNSA, concurrently achieving a significant reduction in the co-extraction of Fe(III) and Al. The selective complexation of Ni and Co using the SSX system offers a highly efficient and selective approach for their extraction, with promising potential for applications in recovery-based processes.

关键词: Nickel and cobalt extraction, Synergistic solvent extraction, DNNSA, Pyridine, Hydrometallurgy

Abstract: Simultaneous recovery of Ni and Co from Fe(III) and Al is a critical challenge in hydrometallurgical processes. Recognized solvent extraction systems often struggle with selectivity and effective performance in mixed metal ion environments. Herein, a new synergistic solvent extraction (SSX) system comprised of a novel pyridine analog, N,N-bis(pyridin-2-ylmethyl) dodecan-1-amine (BPMDA), and dinonylnaphthalene sulfonic acid (DNNSA) with tributyl phosphate as phase modifier is introduced. The SSX system demonstrates high extraction performance achieving >90% for Ni and >97% for Co in a single-stage extraction process, with high selectivity. Under optimal conditions, the selectivity sequence is observed as Co2+ (>97%) > Ni2+ (>90%) > Mn2+ (<20%) > Fe3+ (<10%) > Mg2+ (<5%) > Al3+ (<2%) > Ca2+ (<1%). Spectroscopic analysis evidences the preferential binding of BPMDA with Ni and Co in the presence of DNNSA, concurrently achieving a significant reduction in the co-extraction of Fe(III) and Al. The selective complexation of Ni and Co using the SSX system offers a highly efficient and selective approach for their extraction, with promising potential for applications in recovery-based processes.

Key words: Nickel and cobalt extraction, Synergistic solvent extraction, DNNSA, Pyridine, Hydrometallurgy