Lithiumrückgewinnungsverfahren und Lithiumrückgewinnungsvorrichtung
Anmelder: Mitsubishi Materials Corporation 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4741520
- Anmeldetag
- 3. Juli 2024
- Veröffentlichung
- 9. Januar 2025
- Rechtsraum
- EP
Abstract
According to the present invention, there are provided a lithium recovery method including a leaching step of adding an acidic solution containing an inorganic acid to a lithium-containing raw material and leaching lithium into the acidic solution, a precipitation step of neutralizing a first slurry obtained in the leaching step to obtain a precipitate substance, a solid-liquid separation step of performing solid-liquid separation on a second slurry obtained in the precipitation step, a washing step of washing a solid phase obtained in the solid-liquid separation step with a washing liquid, and a recycling step of reusing a post-washing liquid obtained in the washing step in either or both of the leaching step and the precipitation step, and a lithium recovery device. Further, the lithium recovery method and the lithium recovery device enable improvement of a recovery rate of lithium while impurities are reduced in a case where lithium is recovered from a lithium ion battery calcined product (black mass).
Anmelder
- Firma
- Mitsubishi Materials Corporation
- Land
- 🇯🇵 Japan
Japanisches Unternehmen der Mitsubishi-Gruppe mit Sitz in Tokio, tätig in der Verarbeitung von Metallen und Werkstoffen, unter anderem Kupfer, Zement, Hartmetallwerkzeuge und elektronische Materialien.
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