Processes for preparing hydroxides and oxides of various metals and derivatives thereof

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United States of America Patent

PATENT NO 12006231
APP PUB NO 20230159348A1
SERIAL NO

18090322

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Abstract

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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; andreusing the sodium hydroxide obtained by the electromembrane process for reacting with the metal sulfate.

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Patent Owner(s)

  • NEMASKA LITHIUM INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bibienne, Thomas Montréal, CA 5 10
Bourassa, Guy Québec, CA 31 300
Charbonneau, Mathieu Montréal, CA 6 24
Dollé, Mickaël Outremont, CA 7 10
Laroche, Nicolas Pont-Rouge, CA 14 90
Magnan, Jean-François Neuville, CA 26 229

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