Method for removing iron from iron-containing solution and method for recovering valuable metals

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United States of America Patent

PATENT NO 10443111
APP PUB NO 20180073098A1
SERIAL NO

15563478

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Abstract

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The present invention provides a method for removing iron from an iron-containing solution containing an iron ion, comprising adding a lithium ion battery cathode material containing manganese to an acidic sulfuric acid solution to obtain a cathode material-containing solution, and then precipitating a manganese ion as manganese dioxide in a mixed solution obtained by mixing the iron-containing solution with the cathode material-containing solution while precipitating the iron ion contained in the iron-containing solution as a solid.

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Patent Owner(s)

  • JX NIPPON MINING & METALS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arakawa, Junichi Tsuruga, JP 24 281
Ito, Junichi Tsuruga, JP 210 3215
Yokota, Takuya Hitachi, JP 3 2

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