Fluoride-removal anion exchange resin and preparation and regeneration methods thereof
The invention discloses fluoride-removal anion exchange resin and preparation and regeneration methods thereof. the preparation method comprises the following steps: (1) a first modified saline solution and a second modified saline solution are prepared, wherein the first modified saline solution is...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The invention discloses fluoride-removal anion exchange resin and preparation and regeneration methods thereof. the preparation method comprises the following steps: (1) a first modified saline solution and a second modified saline solution are prepared, wherein the first modified saline solution is an amphoteric metal salt solution, and the second modified saline solution is a mixed solution of an organic solvent and a metal salt solution; (2) a filtration column is filled with anion exchange resin to prepare an anion exchange column; (3) excessive first modified saline solution passes through the anion exchange column prepared in the Step (2) such that the anion exchange resin reaches an equilibrium state; (4) deionized water is used for leaching the anion exchange column prepared in theStep (3) until the anion exchange resin is neutral; and (5) the excessive second modified saline solution passes through the anion exchange column prepared in the Step (4) such that the anion exchange resin reaches an equili |
|---|