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LJ087-1
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1. Product Introduction:
LJ087-1 is a mixed bed resin composed of gel-type electronic grade cation resin and electronic grade anion resin, suitable for the preparation and fine treatment of ultrapure water in the electronics industry. It can produce high-purity silicon-free deionized water, with high exchange capacity and excellent wear resistance. 。
2. Performance Indicators:
Index
Functional Group
-SO3H
-N(CH3)3
Form at Factory
H+
OH-
Cation/Anion Resin Ratio V/V
1
1
Volume Exchange Capacity
≥1.8 mmol/ml
≥1.10 mmol/ml
Moisture
48%~55%
53%~58%
Wet True Density
1.18~1.24 g/ml
1.06~1.09 g/ml
Wet Apparent Density
0.74~0.82 g/ml
0.66~0.71 g/ml
Particle Size Range
0.315~1.25 mm
0.315~1.25 mm
Effective Particle Size
0.40-0.70mm
0.40-0.70mm
Uniformity Coefficient
≤1.6
≤1.6
Sphericity Rate
≥60%
≥60%
3. Precautions:
1. Product Transportation and Storage:
Store the product in a wet state, preferably at temperatures above 0°C; for long-term storage, it can be sealed or immersed in 5% a brine solution above; during transportation, prevent freezing and avoid placing heavy objects on the resin to prevent crushing.
2. Resin Pretreatment:
Generally, alkali -water - acid - water treatment in one process is required; for strict requirements, three cycles should be performed, finally treating to the required ion form.
3. Resin Loading:
Consider the resin swelling rate during phase change, reserve enough space to prevent resin overflow and ensure proper liquid level; the column diameter ratio should be reasonable to avoid channeling; use wet loading or backwash to remove air bubbles inside the resin bed.
4. Before liquid enters the resin column, it should undergo flocculation, filtration, or sand filtration to ensure no suspended solids, preventing blockage of resin pores.
5. Resin unused in the column for a long time must be cleaned and removed for storage, or kept in a salt-resistant medium with brine, maintaining moisture on the surface and performing periodic backwash to loosen the resin and prevent caking and spoilage.
LJ087-1
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