ADSORBENT PARTICLES, BASE PARTICLE, PACKED COLUMN, AND METHOD FOR RECOVERING RARE-EARTH ELEMENT
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United States of America
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Jun 12, 2020
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Jun 12, 2020
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Adsorbent particles each containing: a carrier particle containing an organic polymer containing a monomer unit derived from a styrene-based monomer; a hydrophilic organic compound adhered to a surface of the carrier particle; and a diglycolic acid residue bonded to the hydrophilic organic compound. When a BET specific surface of the adsorbent particles as determined by adsorption of nitrogen gas is X0 and a BET specific surface area of the adsorbent particles as determined by adsorption of water vapor is X1, X1/X0 is 0.10 to 1.0.
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