Process of extraction of lithium from a material comprising lithium and at least another metal
AssigneesUniversite De Rouen Normandie, Institut National Des Sciences Appliquees De Rouen, Centre National De La Recherche Scientifique, Ecole Nationale Superieure D'Ingenieurs De Caen, Universite De Caen Normandie
InventorsFiras AYADI, Virginie NACHBAUR, Valérie PRALONG
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Abstract
The present invention is in the field of the extraction of lithium from a material comprising lithium and at least another metal. In particular, the invention concerns a process of extraction of lithium at least, from a material comprising lithium and at least another metal.
Claims17
Process of extraction of lithium from a material comprising lithium and at least another metal, said process comprising the following steps:
- a) contacting said material with a polyol solvent and a carbonate to obtain a reaction mixture;
- b) performing a solvothermal treatment of the reaction mixture obtained in step a) to obtain a solvothermally treated composition SP1;
- c) separating the liquid L1 containing lithium carbonate and the solid S1 forming the composition SP1 obtained in step b);
- d) optionally, isolating solid lithium carbonate from the liquid L1.
(canceled)
Composition comprising:
- a material chosen from lithium-ion battery cathode materials and lithium ores;
- a carbonate;
- and
- a polyol solvent.
Dependencies are inferred from the claim text.