公开(公告)号：US20240294395A1

公开(公告)日：2024-09-05

申请号：US18655232

申请日：2024-05-04

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 metal oxide 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 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 and aluminum with lithium hydroxide and optionally a chelating agent to obtain a solid comprising 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, and a liquid comprising lithium sulfate, the metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum;
separating the liquid and the solid from one another to obtain the metal hydroxide;
submitting the liquid comprising lithium sulfate to an electromembrane process for converting the lithium sulfate into lithium hydroxide; and
reusing at least a first portion of said lithium hydroxide obtained by the electromembrane process for reacting with the metal sulfate;
reacting at least a second portion of said lithium hydroxide obtained by the electromembrane process with the obtained metal hydroxide to obtain a mixture of metal hydroxides; and
roasting said mixture of metal hydroxides to obtain the metal oxide.

公开(公告)号：US11519081B2

公开(公告)日：2022-12-06

申请号：US17397625

申请日：2021-08-09

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: C25B1/00 ,  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 ,  C22B3/22 ,  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.

公开(公告)号：US20210348285A1

公开(公告)日：2021-11-11

申请号：US17383436

申请日：2021-07-23

Applicant: NEMASKA LITHIUM INC.

Inventor： Jean-François MAGNAN ,  Guy BOURASSA ,  Gary PEARSE ,  Peter SYMONS ,  J. David GENDERS

IPC: C25B15/02 ,  C25B1/16 ,  B01D61/44 ,  C25B9/19 ,  C25B1/00 ,  C25B13/02

Abstract: There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. 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 2 to about 4.

公开(公告)号：US11142466B2

公开(公告)日：2021-10-12

申请号：US16766287

申请日：2018-11-22

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 ,  C01G51/04 ,  C01G51/00 ,  C01G53/00 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/54

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 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 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.

公开(公告)号：US20200087804A1

公开(公告)日：2020-03-19

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

IPC: C25B15/02 ,  B01D61/44 ,  C25B9/08 ,  C25B1/16 ,  C25B1/00 ,  C25B13/02

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.

公开(公告)号：US10066305B2

公开(公告)日：2018-09-04

申请号：US15615280

申请日：2017-06-06

Applicant: Nemaska Lithium Inc.

Inventor： Guy Bourassa ,  Gary Pearse ,  Stephen Charles Mackie ,  Mykolas Gladkovas ,  Peter Symons ,  J. David Genders ,  Jean-François Magnan

IPC: C25B1/00 ,  C25B1/16 ,  B01D61/44 ,  B01D61/42 ,  C22B7/00 ,  C22B26/12

CPC classification number: C25B1/16 ,  B01D61/422 ,  B01D61/44 ,  C22B7/006 ,  C22B26/12 ,  Y02E60/366

Abstract: There are provided methods for preparing lithium hydroxide. For example, such methods can comprise submitting an aqueous composition comprising a lithium compound to an electrolysis under conditions suitable for converting at least a portion of said lithium compound into lithium hydroxide. There are also provided methods for preparing lithium sulphate.

公开(公告)号：US20180222762A1

公开(公告)日：2018-08-09

申请号：US15861587

申请日：2018-01-03

Applicant: NEMASKA LITHIUM INC.

Inventor： Guy BOURASSA ,  Gary PEARSE ,  Stephen Charles MACKIE ,  Mykolas GLADKOVAS

IPC: C01D15/08 ,  C25B15/08 ,  C25B1/16

CPC classification number: C01D15/08 ,  C25B1/16 ,  C25B15/08

Abstract: 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.

公开(公告)号：US20240229266A1

公开(公告)日：2024-07-11

申请号：US18391687

申请日：2023-12-21

Applicant: NEMASKA LITHIUM INC.

Inventor： Jean-François MAGNAN ,  Guy BOURASSA ,  Gary PEARSE ,  Peter SYMONS ,  J. David GENDERS ,  Daniel BAR ,  Marie-Eve LANGEVIN

IPC: C25B15/02 ,  B01D61/44 ,  C25B1/00 ,  C25B1/16 ,  C25B1/22 ,  C25B9/19 ,  C25B9/21 ,  C25B13/02 ,  C25B13/04 ,  C25B15/023 ,  C25B15/027 ,  C25B15/029 ,  C25B15/031

CPC classification number: C25B15/02 ,  B01D61/44 ,  B01D61/445 ,  C25B1/00 ,  C25B1/16 ,  C25B1/22 ,  C25B9/19 ,  C25B9/21 ,  C25B13/02 ,  C25B13/04 ,  C25B15/023 ,  C25B15/027 ,  C25B15/029 ,  C25B15/031 ,  Y02E60/36

Abstract: There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. 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 2 to about 4.

公开(公告)号：US20230159348A1

公开(公告)日：2023-05-25

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 ,  C01G51/04 ,  C01G51/00 ,  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：US20230080642A1

公开(公告)日：2023-03-16

申请号：US17988957

申请日：2022-11-17

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 ,  B01D61/44 ,  B01D61/58 ,  C01D15/02 ,  C01D15/06 ,  C22B1/02 ,  C22B1/06 ,  C22B3/04 ,  C22B3/08 ,  C22B3/20 ,  C22B3/22 ,  C22B26/12 ,  C25B9/70 ,  B01D61/02

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.