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：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：US20220002168A1

公开(公告)日：2022-01-06

申请号：US17477553

申请日：2021-09-17

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：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

IPC: C01G53/00 ,  C01G1/02 ,  C01G51/04 ,  C01G51/00 ,  C01D15/02 ,  B01D61/42

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.