METHOD FOR PRODUCING HIGH-PURITY UREA WATER
PROBLEM TO BE SOLVED: To provide a method for producing high-purity urea water, capable of removing all at once, metal ion and occlusion causative material by a comparatively simple method, and suppressing fluctuation of a pH value.SOLUTION: In this method for producing high-purity urea water, urea...
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for producing high-purity urea water, capable of removing all at once, metal ion and occlusion causative material by a comparatively simple method, and suppressing fluctuation of a pH value.SOLUTION: In this method for producing high-purity urea water, urea water undiluted solution is treated by an acidic cation exchange resin, and then treated by a strongly basic anion exchange resin. |
|---|