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LJ087-2
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1. Product Introduction:
LJ087-2 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, featuring extremely high exchange capacity and excellent wear resistance. 。
2. Performance Indicators:
Index
Functional Group
-SO3H
-N(CH3)3
Delivery Form
H+
OH-
Cation to Anion Resin Ratio V/V
1
1.5
Volume Exchange Capacity
≥1.8 mmol/ml
≥1.10 mmol/ml
Moisture Content
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
0.40-0.70 mm
0.40-0.70 mm
Uniformity Coefficient
≤1.6
≤1.6
Sphericity Rate
≥60%
≥60%
3. Precautions:
1. Transportation and Storage of the Product:
The product should be stored wet, preferably at temperatures above 0°C; if unused for a long time, it can be sealed or immersed in 5% a brine solution above; during transportation, anti-freezing is essential, and heavy objects should not be placed on the resin to prevent crushing.
2. Resin Pretreatment:
Generally, alkali -water - acid - -water treatment in one cycle is acceptable; for strict requirements, three cycles are needed, finally treating to the required ion form.
3. Resin Loading:
Consider the resin's swelling rate during ion exchange, reserve enough space to prevent 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 to prevent dehydration. Periodic backwashing is also required to loosen the resin and prevent caking and damage.
LJ087-2
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