Rare Earth Molecular Sieve DAY-20
Na2O is more than 0.05% and SiO2/Al2O3 molar ratio is no less than 18.5.
DAY-20 Quality Control Targets
| Item | Unit | Max | Typical | Max | Analytical Method |
| Relative crystallinity | % | 60 | 65 | X-ray diffractometer | |
| Cell parameter | ×10-10m | 24.32 | 24.33 | 24.35 | X-ray diffractometer |
| Silica-alumina ratio | / | 19 | 22 | 24 | X-ray diffractometer |
| Total specific surface | m2/g | 650 | 680 | N2 Adsorption | |
| Pore Volume | mL/g | 0.38 | N2 Adsorption | ||
| Na2O | wt % | 0.10 | Flame Photometric Analysis | ||
| LOI | wt % | 7 | 10 | Gravimetric Analysis | |
| D,50 | μm | 5 | 6 | Laser Scatter Distribution |
