Verfahren zur Rückgewinnung einer Wässrigen Lösung

Details

Veröffentlichungs-Nr.

EP4822816

Anmeldetag

14. Januar 2025

Veröffentlichung

18. September 2025

Rechtsraum

EP

Abstract

Provided is an aqueous solution recovery method which can recover lithium, contained in a composite oxide, as an aqueous solution containing lithium. The aqueous solution recovery method for recovering lithium, contained in a composite oxide, as a lithium-containing aqueous solution includes: a contact step of bringing chlorine or a chlorine compound, in an amount adjusted such that a molar ratio of chlorine to lithium contained in the composite oxide is not less than 1.0 and not more than 5.5, into contact with the composite oxide in a state of not less than 500°C and not more than 1350°C; and an aqueous solution recovery step of bringing an aqueous solution into contact with the chlorine or chlorine compound and the composite oxide that have undergone the contact step, thereby recovering the aqueous solution into which the lithium has been leached.

Anmelder

Firma

JFE Steel Corporation

Land

🇯🇵 Japan