Indium adsorbent, indium adsorbent producing method, and indium adsorption method
AssigneeSony Corporation
InventorsKeiji Yamashita, Yasuhito Inagaki
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Abstract
An indium adsorbent is provided that is obtained by the following process. A hydrophilic polymer having a carboxyl group in which indium is incorporated in advance is caused to absorb an aqueous solution of a water-soluble monomer, a cross-linking agent, and a polymerization initiator, and an acid treatment is performed on a polymer obtained by polymerizing the water-soluble monomer, to obtain the indium adsorbent. The indium adsorbent has a template architecture with respect to indium. Accordingly, the indium adsorbent is capable of adsorbing indium with a high selectivity. An indium selection rate is 2.0 or more with respect to zinc.
Claims12
An indium adsorbent comprising:
- a polymer material having a template architecture with respect to indium, the indium adsorbent having an adsorption selection rate of indium with respect to zinc of 3.0 or more,
- wherein the indium absorbent is obtained by causing a hydrophilic acrylic acid polymer having a carboxyl group into which indium is incorporated to absorb an aqueous solution of a water-soluble monomer, a cross-linking agent, and a polymerization initiator, polymerizing the water-soluble monomer to obtain a polymer, and performing an acid treatment on the polymer obtained.
Dependencies are inferred from the claim text.