Strong-Base Type I Acrylic Anion Exchange Resin
Strong-Base Type I Acrylic Anion Exchange Resin
(for use in demineralisation of water containing organic matter)
A-850 is a gel-type 1 strong-base anion exchange resin with an acrylic matrix. The acrylic matrix ensures excellent removal of organic matter from a water supply in conjunction with its reversible removal upon regeneration. This resin is regenerated very efficiently with lower levels of sodium hydroxide than those required for a polystyrene-based type 1 resin, and yet it has a comparable ability to remove weaker acids including carbonic acid and silica.
Applications:
This product is mainly used in the anion stage of a demineralization plant, particularly on waters where polystyrenic resins are likely to suffer from premature organic fouling.
The FL graded product is specially tailored so the particle size range makes it suitable for use not only in co-flow but also in most standard counter-flow regenerated plants, and packed bed systems using either up-flow or down-flow regeneration. It should always be remembered that acrylic anion resins not only swell and contract in different ionic forms like polystyrenic resins but also undergo irreversible swelling in the first few cycles, which has to be allowed for in some special plant designs.
Like type 2 polystyrenic resins, the acrylic strong base anion resins have a lower maximum temperature limit when operated in the OH form compared to type 1 polystyrenic anion resins.
| Polymer Matrix Structure | Cross-linked Gel Acrylic |
| Appearance | Transparent white spherical beads |
| Functional Groups | Quaternary Ammonium |
| Ionic Form (as shipped) | Cl- |
| Shipping Weight | 695-715 g/l [43.5-45 lb/ft3] |
| Moisture Retention , Cl- form | 57-62% |
| Irreversible Swelling | 10%max |
| Reversible Swelling Cl–>OH- | 15%max |
| Specific Gravity | 1.08 g/ml |
| Total Exchange Capacity, Cl- form | 1.2 eq/l min |
| Operating Temperature (max) : | 40°C (100°F) |
| pH range | no limitations |
