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DuPont™AmberLite™ IRN78 OHIonExchangeResinis designed specifically for use in nuclear loops where highest resin purity and stability are required, and where the "as supplied" resin must have a minimum of ionic and non-ionic contamination. These high standards of resin purity enable plants to achieve reliable and safe production whilst reducing the need for equipment maintenance and minimizing the impact of unscheduled outages. AmberLite™ IRN78 OHisrecognizedasthepremieranion resin in nuclear power applications due to its exceptional total exchange capacity and purity. It contains a minimumof95%oftheexchangesitesinthe hydroxide form and a maximumof0.05% in the chloride form, and is further processed to minimize total chloride content to help prevent transient chloride levels when new resin is placed into service in both BWR and PWRsystems. Thevery high total anion exchange capacity can produce a 10 – 15% increase in operating throughput in the intended applications. Since the nuclear-grade resins from these applications are generally disposed of as rad waste, high capacity and long resin bed life are critical to minimizing rad waste disposal cost and volume. For most users, rad waste disposal cost will often exceed resin purchase cost, so high resin capacity directly translates into savings in these non-regenerable nuclear applications. Furthermore, longer bed life means fewer bed change-outs, less work, less resin handling, and less chance for radiation exposure. Theuniform particle size and the absence of fine resin beads result in a lower pressure drop compared to conventional resins. The particle size of AmberLite™ IRN78 OH is specifically designed to give an optimized balance of pressure drop, exchange kinetics, and resistance to separation from the cation exchange resins, AmberLite™ IRN99 H Ion Exchange Resin andAmberLite™ IRN97 HIonExchangeResin,whenusedina mixed bed.
Primarywater treatment:
Primarycoolant purification
Treatmentofprimarycoolant blowdown
Controlofreactor coolant chemistry by removing boron
Fuelpoolpurification in single bed VVER systems
Radwastetreatmentanddecontamination:
Removalofanionicradioactive material
PWRsteamgenerationblowdown(APG)
BWRcondensatepolishing
