Alkali metal and/or alkali earth metal extraction method

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United States of America Patent

PATENT NO 10113214
APP PUB NO 20150167118A1
SERIAL NO

14412267

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Abstract

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The present invention provides an alkali metal and/or alkali earth metal extraction method that has excellent extraction efficiency and allows repeated use of an aqueous solution that extracts an alkali metal and/or alkali earth metal from a solid. The alkali metal and/or alkali earth metal extraction method is a method for extracting an alkali metal and/or alkali earth metal from a solid containing the alkali metal and/or alkali earth metal, the method including an elution step in which the solid is added to a neutral amino acid-containing aqueous solution or an amino acid-containing mixed aqueous solution produced by mixing a pH adjusting agent with an aqueous solution containing at least one of a neutral amino acid, an acidic amino acid and a basic amino acid so as to elute the alkali metal and/or alkali earth metal in the neutral amino acid-containing aqueous solution or the amino acid-containing mixed aqueous solution.

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Patent Owner(s)

  • AISIN SEIKI KABUSHIKI KAISHA; THE UNIVERSITY OF TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amano, Kiichiro Kakamigahara, JP 1 0
Fujii, Satoshi Nogoya, JP 132 1461
Kojima, Toshiya Seto, JP 62 618
Miyoshi, Shogo Bunkyo-ku, JP 9 2
Ryonaga, Yukinori Okazaki, JP 1 0
Wakimoto, Yoshiki Toyota, JP 4 4
Yamaguchi, Shu Bunkyo-ku, JP 27 139

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