Filter and Metal Ion Removal Device

To provide a filter capable of efficiently removing metal ions in a treatment liquid, and capable of easily obtaining a solution having an extremely low metal ion content. A depth filter includes a porous molded article. The porous molded article is a sintered material of mixed powder or a swollen m...

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Bibliographische Detailangaben
Hauptverfasser: Okada, Hideyuki, Kobayashi, Mitsuaki, Okada, Yukihisa, Shirai, Takaaki
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:To provide a filter capable of efficiently removing metal ions in a treatment liquid, and capable of easily obtaining a solution having an extremely low metal ion content. A depth filter includes a porous molded article. The porous molded article is a sintered material of mixed powder or a swollen material of the sintered material. The mixed powder contains dried gel powder and thermoplastic resin powder. The dried gel powder contains an ion exchange resin including a sulfonic acid group, and a nitrogen-containing chelating resin.