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公开(公告)号:US20160032471A1
公开(公告)日:2016-02-04
申请号:US14776922
申请日:2014-03-17
Applicant: NEMASKA LITHIUM INC.
Inventor: Jean-François MAGNAN , Guy BOURASSA , Gary PEARSE , Peter SYMONS , David J. GENDERS , Daniel BAR , Marie-Eve LANGEVIN
CPC classification number: C25B15/02 , B01D61/44 , B01D61/445 , C25B1/00 , C25B1/16 , C25B9/08 , C25B13/02 , Y02E60/366
Abstract: There are provided processes for preparing lithium hydroxide that comprise submitting an aqueous composition comprising a lithium compound to an electrolysis or an electrodialysis under conditions suitable for converting at least a portion of the lithium compound into lithium hydroxide. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 1 to about 4.
Abstract translation: 提供了制备氢氧化锂的方法,其包括将包含锂化合物的水性组合物在适于将至少一部分锂化合物转化为氢氧化锂的条件下进行电解或电渗析。 例如,锂化合物可以是硫酸锂,并且水性组合物可以至少基本上保持在具有约1至约4的值的pH。