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11. 发明授权

EP3060699B1 PROCESSES AND SYSTEMS FOR PREPARING LITHIUM HYDROXIDE 有权
标题翻译：制备氢氧化锂的方法和系统
公开(公告)号：EP3060699B1
公开(公告)日：2018-05-02
申请号：EP14855708.5
申请日：2014-10-23
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , PEARSE, Gary , SYMONS, Peter , GENDERS, J. David , CLAYTON, Geneviève
IPC分类号： C25B1/16 , B01D61/42 , C25B9/18
CPC分类号： C25B1/16 , B01D61/422 , B01D2311/2684 , C25B9/08 , C25B9/18
摘要： There are provided processes for preparing lithium hydroxide. The processes comprise submitting an aqueous composition comprising lithium sulfate and/or lithium bisulfate to a first electromembrane process that comprises a two-compartment membrane process under suitable conditions for conversion of the lithium sulfate and/or lithium bisulfate to lithium hydroxide, and obtaining a first lithium-reduced aqueous stream and a first lithium hydroxide-enriched aqueous stream; and submitting the first lithium-reduced aqueous stream to a second electromembrane process that comprises a three-compartment membrane process under suitable conditions to prepare at least a further portion of lithium hydroxide and obtaining a second lithium-reduced aqueous stream and a second lithium-hydroxide enriched aqueous stream. There are also provided systems for preparing lithium hydroxide.

12. 发明公开

EP3805430A1 METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS 审中-公开
公开(公告)号：EP3805430A1
公开(公告)日：2021-04-14
申请号：EP20211028.4
申请日：2015-02-24
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , LAROCHE, Nicolas , PEARSE, Gary , MACKIE, Stephen Charles , GLADKOVAS, Mykolas , SYMONS, Peter , GENDERS, J.David , CLAYTON, Geneviève , BOUCHARD, Pierre
IPC分类号： C25C1/02 , B01D61/42 , C01D15/00 , C01D15/02 , C22B1/02 , C22B3/04 , C22B3/20 , C22B26/12 , B01D61/02 , B01D61/58 , C25B1/16 , C22B3/08 , C01D1/20 , C25B9/70
摘要： The present disclosure relates to a method for extracting lithium from a lithium-containing material. For example, the method can comprise leaching a roasted lithium-containing material under conditions suitable to obtain an aqueous composition comprising a lithium compound such as lithium sulfate and/or lithium bisulfate. The aqueous composition comprising lithium sulfate and/or lithium bisulfate can optionally be used, for example, in a method for preparing lithium hydroxide comprising an electromembrane process. The roasted lithium-containing material can be prepared, for example by a method which uses an aqueous composition comprising optionally lithium sulfate and/or lithium bisulfate which can be obtained from a method for preparing lithium hydroxide comprising an electromembrane process such as a two-compartment monopolar or bipolar electrolysis process.

13. 发明公开

EP3805428A1 PROCESSES FOR PREPARING LITHIUM HYDROXIDE 审中-公开
公开(公告)号：EP3805428A1
公开(公告)日：2021-04-14
申请号：EP20208340.8
申请日：2014-03-17
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , PEARSE, Gary , SYMONS, Peter , GENDERS, J. David
IPC分类号： C25B1/16 , C25B9/21 , C25B15/02 , B01D61/44
摘要： 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.

14. 发明公开

EP3713877A1 PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND DERIVATIVES THEREOF 审中-公开
公开(公告)号：EP3713877A1
公开(公告)日：2020-09-30
申请号：EP18881220.0
申请日：2018-11-22
申请人： Nemaska Lithium Inc.
发明人： BOURASSA, Guy , MAGNAN, Jean-François , LAROCHE, Nicolas , BIBIENNE, Thomas , CHARBONNEAU, Mathieu , DOLLÉ, Mickaël
IPC分类号： C01G53/04 , B01D61/42 , C01B13/14 , C01D15/02 , C01F7/02 , C01G45/02 , C01G51/04 , C25B1/04

15. 发明授权

EP3341330B1 METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS 有权
公开(公告)号：EP3341330B1
公开(公告)日：2020-08-19
申请号：EP16838173.9
申请日：2016-08-26
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , LAROCHE, Nicolas , PEARSE, Gary , MACKIE, Stephen, Charles , GLADKOVAS, Mykolas , SYMONS, Peter , GENDERS, J. David , CLAYTON, Geneviève , BOUCHARD, Pierre , OUELLET, Bertin
IPC分类号： C25B1/16 , C25B9/08

16. 发明公开

EP3504360A1 PROCESSES FOR TREATING AQUEOUS COMPOSITIONS COMPRISING LITHIUM SULFATE AND SULFURIC ACID 有权
公开(公告)号：EP3504360A1
公开(公告)日：2019-07-03
申请号：EP17842498.2
申请日：2017-08-28
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , LAROCHE,Nicolas , OUELLET, Bertin , BRERETON, Clive , BUCHI, Steven , NAKA, Tsuki
IPC分类号： C30B7/04 , B01D9/02 , C30B29/46

17. 发明公开

EP3341330A1 METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS 有权
公开(公告)号：EP3341330A1
公开(公告)日：2018-07-04
申请号：EP16838173.9
申请日：2016-08-26
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , LAROCHE, Nicolas , PEARSE, Gary , MACKIE, Stephen, Charles , GLADKOVAS, Mykolas , SYMONS, Peter , GENDERS, J. David , CLAYTON, Geneviève , BOUCHARD, Pierre , OUELLET, Bertin
IPC分类号： C01D1/04 , B01D61/42 , C01D1/28 , C01D1/38 , C01D1/40 , C22B1/02 , C22B3/08
摘要： The disclosure relates to methods for preparing lithium hydroxide. For example, such methods can comprise mixing a lithium-containing material with an acidic aqueous composition optionally comprising lithium sulfate and thereby obtaining a mixture; roasting the mixture under suitable conditions to obtain a roasted, lithium-containing material; leaching the roasted material under conditions suitable to obtain a first aqueous composition comprising lithium sulfate; submitting the first aqueous composition comprising lithium sulfate to an electromembrane process under suitable conditions for at least partial conversion of the lithium sulfate into lithium hydroxide and to obtain a second aqueous composition comprising lithium sulfate, the electromembrane process involving a hydrogen depolarized anode; optionally increasing concentration of acid in the second aqueous composition; and using the second aqueous composition comprising lithium sulfate as the acidic aqueous composition optionally comprising lithium sulfate for mixing with the lithium-containing material and to obtain the mixture.

18. 发明授权

EP2855735B1 PROCESSES FOR PREPARING LITHIUM CARBONATE 有权
标题翻译：制备碳酸锂的方法
公开(公告)号：EP2855735B1
公开(公告)日：2018-03-07
申请号：EP13796576.0
申请日：2013-05-30
申请人： Nemaska Lithium Inc.
发明人： BOURASSA, Guy , PEARSE, Gary , MACKIE, Stephen Charles , GLADKOVAS, Mykolas
IPC分类号： C25B1/16 , C01D15/08 , C22B3/04 , C22B26/12
CPC分类号： C01D15/08 , C25B1/16 , C25B15/08
摘要： 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.

19. 发明公开

EP3060699A1 PROCESSES AND SYSTEMS FOR PREPARING LITHIUM HYDROXIDE 有权
标题翻译： VERFAHREN UND SYSTEME ZUR HERSTELLUNG VON LITHIHYDROXID
公开(公告)号：EP3060699A1
公开(公告)日：2016-08-31
申请号：EP14855708.5
申请日：2014-10-23
申请人： Nemaska Lithium Inc.
发明人： MAGNAN, Jean-François , BOURASSA, Guy , PEARSE, Gary , SYMONS, Peter , GENDERS, J. David , CLAYTON, Geneviève
IPC分类号： C25B1/16 , B01D61/42 , C25B9/00
CPC分类号： C25B1/16 , B01D61/422 , B01D2311/2684 , C25B9/08 , C25B9/18
摘要： There are provided processes for preparing lithium hydroxide. The processes comprise submitting an aqueous composition comprising lithium sulfate and/or lithium bisulfate to a first electromembrane process that comprises a two-compartment membrane process under suitable conditions for conversion of the lithium sulfate and/or lithium bisulfate to lithium hydroxide, and obtaining a first lithium-reduced aqueous stream and a first lithium hydroxide-enriched aqueous stream; and submitting the first lithium-reduced aqueous stream to a second electromembrane process that comprises a three-compartment membrane process under suitable conditions to prepare at least a further portion of lithium hydroxide and obtaining a second lithium-reduced aqueous stream and a second lithium-hydroxide enriched aqueous stream. There are also provided systems for preparing lithium hydroxide.
摘要翻译：提供了制备氢氧化锂的方法。所述方法包括将包含硫酸锂和/或硫酸氢锂的水性组合物提交到第一电子过程中，所述第一电子过程包括在用于将硫酸锂和/或硫酸锂转化为氢氧化锂的合适条件下的双室膜工艺，并获得第一锂还原水流和第一富含氢氧化锂的水流; 以及将第一锂还原的水流提供到第二电子过程，其在合适的条件下包括三室膜工艺以制备至少另一部分氢氧化锂并获得第二锂还原水流和第二氢氧化锂富含水流。还提供了制备氢氧化锂的系统。

20. 发明公开

EP3060522A1 PROCESSES FOR PREPARING LITHIUM CARBONATE 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG VON LITHIUMCARBONAT
公开(公告)号：EP3060522A1
公开(公告)日：2016-08-31
申请号：EP14854916.5
申请日：2014-10-23
申请人： Nemaska Lithium Inc.
发明人： BOURASSA, Guy , PEARSE, Gary , MACKIE, Stephen, Charles , GLADKOVAS, Mykolas , SYMONS, Peter , GENDERS, J. David , MAGNAN, Jean-François , CLAYTON, Geneviève
IPC分类号： C01D15/08 , B01D61/42 , C25B1/10
CPC分类号： C22B26/12 , B01D61/422 , B01D61/445 , B01D2311/2684 , C01B2203/0283 , C01D7/07 , C22B3/44 , C22B4/02 , C25B1/14 , C25B1/16 , C25B9/08 , C25B9/18 , Y02E60/366
摘要： There are provided processes comprising submitting an aqueous composition comprising lithium sulphate and/or bisulfate to an electrolysis or an electrodialysis for converting at least a portion of said sulphate into lithium hydroxide. During electrolysis or electrodialysis, the aqueous composition is at least substantially maintained at a pH having a value of about 1 to about 4; and converting said lithium hydroxide into lithium carbonate. Alternatively, lithium sulfate and/or lithium bisulfate can be submitted to a first electromembrane process that comprises a two-compartment membrane process for conversion of lithium sulfate and/or lithium bisulfate to lithium hydroxide, and obtaining a first lithium-reduced aqueous stream and a first lithium hydroxide-enriched aqueous stream; and submitting said first lithium-reduced aqueous stream to a second electromembrane process comprising a three-compartment membrane process to prepare at least a further portion of lithium hydroxide and obtaining a second lithium-reduced aqueous stream and a second lithium-hydroxide enriched aqueous stream.
摘要翻译：提供的方法包括将包含硫酸锂和/或硫酸氢盐的含水组合物提供到电解或电渗析中，以将至少一部分所述硫酸盐转化为氢氧化锂。在电解或电渗析期间，水性组合物至少基本上保持在具有约1至约4的值的pH; 并将所述氢氧化锂转化为碳酸锂。或者，硫酸锂和/或硫酸氢锂可以进行第一电子过程，其包括用于将硫酸锂和/或硫酸氢锂转化为氢氧化锂的双室膜工艺，并获得第一锂还原水流和第一个富含氢氧化锂的水流; 以及将所述第一锂还原水流提交到包括三室膜工艺的第二电解方法中，以制备至少另一部分氢氧化锂并获得第二锂还原水流和第二富含氢氧化锂的水流。

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