Canadian Mining Journal


LITHIUM: Nemaska secures Canadian, U.S. patents

QUEBEC CITY – Nemaska Lithium has obtained issuance of Canadian patent No.2,874,917 that describes its proprietary process of preparing lithium hydroxide and lithium carbonate from spodumene sources using membrane electrolysis. Nemaska has also received a notice of allowance for the corresponding patent application (No.14/404,466) in the United States.

The electrolysis technology developed by Nemaska Lithium to convert lithium sulphate into lithium hydroxide and lithium carbonate, has been successfully lab scale tested, demonstrated in pilot plant testing as well as at supplier facilities over the past four years. In the past, electrolysis based technologies have been commercially used in multiple industries and have demonstrated that they can be very efficient and very reliable.

The low cost process is explained at