Deutsch
Español
polski
Français
Italiano
Русский
Čeština
Nederlands
Suomi
Magyar
Português
Română
Svenska
1. Introduction:
ZG A408 is a macroporous low-solid anion exchange resin. Its special matrix gives it high mechanical strength and resistance to the osmotic pressure of acids and alkalis compared to conventional low-solid anion resins. Furthermore, ZG A408 has a low fracture rate, with an annual brittleness rate of less than 10%. Due to its relatively large specific surface area and the presence of both strong and weak functional groups, it exhibits high exchange capacity and a rapid ion exchange rate when processing gold leaching solutions.
2. Physicochemical properties:
| Name of the indicator | Meaning |
| Appearance | Milky white to light yellow opaque granules |
| Matrix | Styrene |
| Ionic form | Free amine |
| Humidity, % | 50.00~60.00 |
| Exchange capacity by mass, mmol/g (dry) | ≥4.80 |
| Strongly alkaline functional groups, % | 20~30 |
| Exchange capacity by volume, mmol/ml | ≥1.35 |
| True density (wet), g/ml | 1.05~1.12 |
| Bulk density, g/ml | 0.65~0.75 |
| Retention of spherical shape after osmosis, % | ≥90 |
| Particle size range, % | (0.315～1.25mm) ≥95 |
| Change in volume during the transition OH – →Cl – , % | ≤20 |
| Gold absorption capacity, mg/l-R | 150~300 |
