An extraction method of an alkaline metal and/or alkaline-earth metals

Japanese Patent JP6013480

B2

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.

WO/2017/173850	DOMESTIC WASTE TREATMENT APPARATUS
JP2000325928	GARBAGE TREATMENT APPARATUS

Wakimoto Yoshiki
Satoshi Fujii
Yukinori
Kiichiro Amano
Toshiya Kojima
Amane Yamaguchi
Shogo Miyoshi

JP2014523787A

October 25, 2016

July 04, 2013

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Aisin Seiki Co., Ltd.
National University Corporation Tokyo University

B09B3/00; B01D11/02; C22B3/44; C22B26/10; C22B26/20

JP2011212534A
JP2007314359A
JP2000154996A

CN101993104A
CN101293663A

Patent business corporation r&c

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