What are mixed resins?
Nuclear grade products are used in ultra-pure water, radiation waste, pharmaceuticals, semiconductors, and condensate polishing. The mixed beds of ion exchange resins are used in processes where it is necessary to remove all the anions and cations that are not necessary in a water treatment process. The high grade of nuclear resins ensure that the processed water is in fact of the highest quality 18.3 megohms (0.55 µS cm-1) *.
Mixed resins are composed of strong base type 1 anion and strong acid cation, both in the regenerated form mixed to a 1: 1 chemical equivalent. There are other relationships at the request of the client. Mixed bed resins can be used for regenerative or non-regenerative (cartridge) systems. Mixed-bed nuclear resins are processed without flocculating agents to ensure that the quality obtained is nothing less than the best.
Purolite mixed bed resins:
Description |
Data sheet |
Purolite A400 MBOH, Resin for demineralization and mixed bed. |
 |
Typical physical and chemical characteristics:
Polymeric structure |
Polystyrene gel cross-linked with divinylbenzene |
Appearance |
Spherical beads |
Functional group |
Type I Quaternary Ammonium |
Ionic form |
OH |
Total capacity |
1.3 eq / L (28.4 Kgr / ft³) (Cl form) |
Moisture retention |
48 - 54 % |
Particle size range |
300 - 1200 µm |
<425 µm (max.) |
2 % |
Uniformity coefficient (max.) |
1.7 |
Reversible swelling, Cl OH (max.) |
20 % |
Specific gravity |
1.07 |
Shipping Weight (Approx.) |
665 - 695 g / L (41.6 - 43.4 lb / ft³) |
Temperature limit |
100 ° C (212.0 ° F) (Cl form) |
Temperature limit |
60 ° C (140.0 ° F) (OH form) |
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