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公开(公告)号：US12006231B2
公开(公告)日：2024-06-11
申请号：US18090322
申请日：2022-12-28
Applicant: NEMASKA LITHIUM INC.
Inventor： Guy Bourassa , Jean-François Magnan , Nicolas Laroche , Thomas Bibienne , Mathieu Charbonneau , Mickaël Dollé
IPC: C01G53/04 , B01D61/44 , C01D1/28 , C01D15/02 , C01G51/00 , C01G51/04 , C01G53/00 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/54
CPC classification number: C01G53/04 , B01D61/445 , C01D1/28 , C01D15/02 , C01G51/04 , C01G51/50 , C01G53/006 , C01G53/50 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/54 , B01D2311/2642 , B01D2311/2673 , C01P2002/54 , C01P2002/72 , C01P2006/40
Abstract: A process for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum. The process comprises:
reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (iii) at least one metal chosen from manganese and aluminum with sodium hydroxide and optionally a chelating agent in order to obtain a solid comprising the metal hydroxide and a liquid comprising sodium sulfate;
separating the liquid and the solid from one another to obtain the metal hydroxide;
submitting the liquid comprising sodium sulfate to an electromembrane process for converting the sodium sulfate into sodium hydroxide; and
reusing the sodium hydroxide obtained by the electromembrane process for reacting with the metal sulfate.-
公开(公告)号：US20240068113A1
公开(公告)日：2024-02-29
申请号：US18387438
申请日：2023-11-06
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François MAGNAN , Guy BOURASSA , Nicolas LAROCHE , Gary PEARSE , Stephen Charles MACKIE , Mykolas GLADKOVAS , Peter SYMONS , J. David GENDERS , Geneviève CLAYTON , Pierre BOUCHARD
IPC: C25B1/16 , B01D61/02 , B01D61/42 , B01D61/44 , B01D61/58 , C01D15/02 , C01D15/06 , C22B1/02 , C22B1/06 , C22B3/04 , C22B3/08 , C22B3/20 , C22B3/22 , C22B26/12 , C25B9/70
CPC classification number: C25B1/16 , B01D61/025 , B01D61/42 , B01D61/44 , B01D61/58 , C01D15/02 , C01D15/06 , C22B1/02 , C22B1/06 , C22B3/04 , C22B3/08 , C22B3/20 , C22B3/22 , C22B26/12 , C25B9/70 , Y02P10/20
Abstract: The present disclosure relates to a method for treating an electromembrane process aqueous composition comprising sodium and/or potassium sulfate, said process comprising removing water from said electromembrane process aqueous composition under conditions suitable for substantially selectively precipitating sodium and/or potassium sulfate monohydrate.
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33.发明公开公开(公告)号：US20230391668A1
公开(公告)日：2023-12-07
申请号：US18207135
申请日：2023-06-07
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François MAGNAN , David-Nicolas ALLEN
CPC classification number: C04B11/30 , C01B33/26 , C04B14/041 , C04B2103/0088 , C04B14/106 , C04B14/10 , C04B35/19
Abstract: The present disclosure concerns an aluminosilicate having a Blaine fineness of about 500 m2/kg to about 3000 m2/kg and/or a specific surface area of about 4 m2/g to about 20 m2/g, as well as the uses thereof. The present disclosure also comprises a dry cementing composition and a mortar or concrete composition, the compositions comprising said aluminosilicate. The present disclosure also comprises a process for the manufacture of aluminosilicate. The process comprises: roasting a spodumene concentrate in an acid medium; leaching the acidic roast spodumene concentrate so as to obtain a mixture comprising a solid comprising the aluminosilicate and a leachate; and separating the aluminosilicate from the leachate in an acid medium, wherein said aluminosilicate contains a calcium concentration of less than about 5%.
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34.发明授权公开(公告)号：US11685689B2
公开(公告)日：2023-06-27
申请号：US17628558
申请日：2019-11-27
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François Magnan , David-Nicolas Allen
CPC classification number: C04B11/30 , C01B33/26 , C04B14/041 , C04B14/10 , C04B14/106 , C04B35/19 , C04B2103/0088 , Y02P10/20
Abstract: The present disclosure concerns an aluminosilicate having a Blaine fineness of about 500 m2/kg to about 3000 m2/kg and/or a specific surface area of about 4 m2/g to about 20 m2/g, as well as the uses thereof. The present disclosure also comprises a dry cementing composition and a mortar or concrete composition, the compositions comprising said aluminosilicate. The present disclosure also comprises a process for the manufacture of aluminosilicate. The process comprises: roasting a spodumene concentrate in an acid medium; leaching the acidic roast spodumene concentrate so as to obtain a mixture comprising a solid comprising the aluminosilicate and a leachate; and separating the aluminosilicate from the leachate in an acid medium, wherein said aluminosilicate contains a calcium concentration of less than about 5%.
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Patent Agency Ranking
公开(公告)号：US20220242746A1
公开(公告)日：2022-08-04
申请号：US17613481
申请日：2020-05-22
Applicant: NEMASKA LITHIUM INC.
Inventor： Thomas BIBIENNE , Nicolas LAROCHE , Jean-François MAGNAN , Guy BOURASSA , Mathieu CHARBONNEAU , Mickaël DOLLÉ , David DEAK
Abstract: There are provided processes for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium, copper, magnesium and aluminum, the process comprising: reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium, copper, magnesium and aluminum with lithium hydroxide, sodium hydroxide and/or potassium hydroxide and optionally a chelating agent in order to obtain a solid comprising the metal hydroxide and a liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate; separating the liquid and the solid from one another to obtain the metal hydroxide; submitting the liquid comprising lithium sulfate, sodium sulfate and/or potassium sulfate to an electromembrane process for converting the lithium sulfate, sodium sulfate and/or potassium sulfate into lithium hydroxide, sodium hydroxide and/or potassium hydroxide respectively; reusing the sodium hydroxide obtained by the electromembrane process for reacting with the metal sulfate; and reusing the lithium hydroxide obtained by the electromembrane process for reacting with the metal sulfate and/or with the metal hydroxide.
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36.发明申请公开(公告)号：US20220032207A1
公开(公告)日：2022-02-03
申请号：US17397934
申请日：2021-08-09
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François MAGNAN , Guy BOURASSA , Nicolas LAROCHE , Bertin OUELLET , Clive BRERETON , Steven BUCHI , Tsuki NAKA
Abstract: The present disclosure relates to processes for treating an aqueous composition comprising lithium sulfate and sulfuric acid. The processes comprise evaporatively crystallizing the aqueous composition comprising lithium sulfate and sulfuric acid under conditions to obtain crystals of lithium sulfate monohydrate and a lithium sulfate-reduced solution; and optionally separating the crystals of the lithium sulfate monohydrate from the lithium sulfate-reduced solution. The processes optionally further comprise concentrating the lithium sulfate-reduced solution under conditions to obtain an acidic condensate and a concentrate comprising sulfuric acid.
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公开(公告)号：US11085121B2
公开(公告)日：2021-08-10
申请号：US16712961
申请日：2019-12-12
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François Magnan , Guy Bourassa , Nicolas Laroche , Gary Pearse , Stephen Charles Mackie , Mykolas Gladkovas , Peter Symons , J. David Genders , Geneviève Clayton , Pierre Bouchard
IPC: C25B1/16 , B01D61/42 , C01D15/02 , C01D15/06 , C22B1/02 , B01D61/02 , B01D61/58 , C22B1/06 , B01D61/44 , C22B3/04 , C22B26/12 , C22B3/20 , C25B9/70 , C22B3/08
Abstract: 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.
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公开(公告)号：US11078583B2
公开(公告)日：2021-08-03
申请号：US16579173
申请日：2019-09-23
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François Magnan , Guy Bourassa , Gary Pearse , Peter Symons , J. David Genders
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.
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公开(公告)号：US10036094B2
公开(公告)日：2018-07-31
申请号：US15031589
申请日：2014-10-23
Applicant: NEMASKA LITHIUM INC.
Inventor： Jean-François Magnan , Guy Bourassa , Gary Pearse , Peter Symons , David J. Genders , Geneviève Clayton
CPC classification number: C25B1/16 , B01D61/422 , B01D2311/2684 , C25B9/08 , C25B9/18
Abstract: 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.
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