Purolite® NRW37Li

Nuclear Grade Mixed Bed Exchange Resin

Purolite NRW37 Li is a nuclear grade mixed bed resin especially designed for the removal of radioactive contaminants from primary circuits of nuclear power plants conditioned with natural lithium hydroxide. The product is an equilibrium mixture (chemical equivalents) of Purolite NRW100 carefully converted to the high purity natural lithium form, and Purolite NRW400 which is supplied highly converted to the hydroxide form. The mixture is capable of removing both cationic and anionic contaminants while maintaining the concentration of lithium hydroxide conditioner at near the correct dose level within the sealed circuit. All Purolite nuclear resins are supplied to exacting standards of high purity as given in the specifications below.

BASIC FEATURES:

Application - Decontamination of Pressurized Water Reactor (PWR) Circuits
Polymer Structure - Gel polystyrene crosslinked with divinylbenzene
Appearance - Spherical beads
Functional Group - Sulphonic Acid and Type 1 Quaternary Ammonium
Ionic Form as Shipped - Li+ / OH-

PRODUCT INFORMATION

Total Capacity, H+ Form (min.) 1.8 eq/l (39.3 kGr/ft3)
Total Capacity, OH- Form 1.0 eq/l (21.8 kGr/ft3)
Component Gel strong base anion
Cation / Anion Volumetric Ratio 40/60 %
Mean Size Typical 0.65-0.90 mm
Uniformity Coefficient (max.) 1.7
Moisture Content 65 %
Cationic Form (min.) 99.9 %
Impurities Heavy Metals 40 ppm
Impurities Iron (max.) 80 ppm
Impurities Sodium (max.) 30 ppm
Anionic Form 95 %
Anionic Form, Cl- (max.) 0.1 %
Anionic Form, CO3- (max.) 5 %
Anionic Form, SO4- (max.) 0.3 %
Shipping Weight (approx.) 720-750 g/l (45-46.9 lbs/ft3)
Temp Limit, Non-Regenerable Bed 100 °C (212 °F)
Temp Limit, Regenerable Bed 60 °C (140 °F)

MSDS