Processes for preparing lithium carbonate

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United States of America Patent

PATENT NO 9382126
SERIAL NO

14404466

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Abstract

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There are provided methods for preparing lithium carbonate. For example, such methods can comprise reacting an aqueous composition comprising lithium hydroxide with CO2 by sparging the CO2 the said composition, thereby obtaining a precipitate comprising the lithium carbonate. The methods can also comprise inserting at least a portion of the precipitate into a clarifier and obtaining a supernatant comprising lithium bicarbonate and a solid comprising the lithium carbonate, separating the solid from the supernatant; and heating the supernatant at a desired temperature so as to at least partially convert the lithium bicarbonate into lithium carbonate.

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Patent Owner(s)

Patent OwnerAddress
NEMASKA LITHIUM INC600 BOUL DE MAISONNEUVE OUEST SUITE 750 MONTRÉAL H3A 3J2

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bourassa, Guy Québec, CA 31 300
Gladkovas, Mykolas Toronoto, CA 19 229
Mackie, Stephen Charles Peterborough, CA 19 229
Pearse, Gary Ottawa, CA 25 282

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