Recovery of cobalt and manganese from spent lithium-ion batteries using a phosphonium-based ionic liquid

Mochmad L. Firmansyah, Adroit T.N. Fajar, Rino R. Mukti, Thalabul Ilmi, Grandprix T.M. Kadja, Masahiro Goto

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A novel ionic liquid (IL) trioctyldodecyl phosphonium bis(2, 4, 4-trimethylpentyl)phosphinate was developed as a recovery agent for cobalt(II) and manganese(II) from spent lithium-ion batteries (LIBs). Absence of organic diluent provides an advantageous factor to IL-based extraction than the conventional one. Co(II) and Mn(II) were extracted quantitatively from the aqueous phase to the IL phase. Extracted Co(II) and Mn(II) were stripped from the IL using water and NH4NO3, respectively. After stripping, the IL can be reused as the extractant, facilitating the realization of a continuous extraction process. The developed hydrophobic IL shows promise as an extractant for Co(II) and Mn(II) from the spent LIBs.

    Original languageEnglish
    Pages (from-to)79-93
    Number of pages15
    JournalSolvent Extraction Research and Development
    Volume28
    Issue number1
    DOIs
    Publication statusPublished - 2021

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)

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