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LJ077-1
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1. Product Introduction:
LJ077-1 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 Delivery
H+
OH-
Cation to Anion Resin Ratio V/V
1
1
Volume Exchange Capacity
≥1.75 mmol/ml
≥1.10 mmol/ml
Moisture Content
51%~56%
53%~58%
Wet True Density
1.17~1.22 g/ml
1.06~1.09 g/ml
Wet Apparent Density
0.73~0.83 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. 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 stored in brine with more than 5% salt; during transportation, anti-freezing measures are essential, and heavy objects should not be placed on the resin to prevent crushing.
2. Pretreatment of Resin:
Generally, an alkali-water-acid-water process can be used for treatment. For strict requirements, three cycles are needed, finally treating the resin into the required ionic form. 3. Filling the Resin:
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 packing or backwash to remove air bubbles inside the resin bed.
4. Before the 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 washed out and stored, or stored in a salt-resistant medium with brine, keeping the resin surface from drying out. Periodic backwashing is also required to loosen the resin and prevent caking and damage.
5.柱内长期不用树脂须洗净后掏出保存,或者在抗盐介质内可加盐水,并且需要保持页面不可脱水,同时还需要不定期的反洗树脂,目的是松动树脂,以防结块报废。
LJ077-1
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