Process
AssigneeMexichem Fluor S.A. De C.V.
InventorsAndrew Sharratt, Jamie Brooks
Life of this patent
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Abstract
A method of recovering a lithium salt from a lithium battery waste mass, comprising the steps of: (a) dissolving the lithium sail in the lithium battery waste mass in a weight of water equivalent to 100 to 0.1 times the weight of the lithium battery waste mass, either in a one-off treatment or successive treatments; (b) evaporating the aqueous solution to dryness; and (c) working up the dry residue with a solvent comprising water, a carbonate, or mixtures thereof.
Claims20
A method of recovering a lithium salt from a lithium battery waste mass, comprising the steps of:
- (a) dissolving the lithium salt in the lithium battery waste mass in a weight of water equivalent to 100 to 0.1 times the weight of the lithium battery waste mass, either in a one-off treatment or successive treatments;
- (b) evaporating the aqueous solution to dryness;
- and
- (c) working up the dry residue with a solvent comprising water, an organic solvent, or mixtures thereof.
A method of recovering a lithium salt from a lithium battery waste mass, comprising the steps of:
- a) dissolving the lithium salt in the lithium battery waste mass in a weight of solvent equivalent to 100 to 0.1 times the weight of the lithium battery waste mass, either in a one-off treatment or successive treatments;
- b) evaporating the solvent solution to dryness;
- and
- c) working up the dry residue with a solvent comprising water, an organic solvent, or mixtures thereof.
Dependencies are inferred from the claim text.