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1. Product Introduction:
Lijiang Brand 201× 8 It is a gel-type strongly basic anion exchange resin with a polystyrene skeleton, containing -N( CH3 ) 3 , equivalent to a solid strong base. It has a high total exchange capacity and good mechanical strength. Mainly used for pure water preparation, wastewater treatment, biochemical products, and extraction of gold, silver, tungsten, molybdenum, etc. in hydrometallurgy.
Corresponding foreign brands: Amberlite IRA-400, AB-17, Diaion SA-10A
2. Performance Indicators:
Appearance
White to light yellow transparent beads
Total Exchange Capacity
≥3.8 mmol/g
Volume Exchange Capacity
≥1.5 mmol/ml
Moisture Content
43%~47%
Wet True Density
1.06~1.10 g/ml
Wet Apparent Density
0.66~0.71 g/ml
Particle Size Range
0.315~1.25 mm
Effective Particle Size
0.40-0.70 mm
Uniformity Coefficient
≤1.6
Sphericity Rate
≥60%
3. Reference Operating Conditions:
Maximum Operating Temperature
OH 40℃, Cl 100℃
Resin Bed Height
1~3 m
Operating Flow Rate
2~10 BV/h
Backwash Flow Rate
4~10 BV/h
Regeneration (Desorption) Flow Rate
1~2 BV/h
Regenerant Dosage
2 BV 3~5% HCl, 2 BV 2~4% NaOH
4. Product Applications:
Mainly used for pure water preparation, wastewater treatment, biochemical products, and extraction of gold, silver, tungsten, and molybdenum in hydrometallurgy.
5. Precautions:
1. Transportation and Storage of the Product:
Store the product in a wet state, preferably above 0°C; if unused for a long time, seal tightly or add more than 5% saline solution; during transportation, mainly prevent freezing, and do not place heavy objects on the resin to avoid crushing.
2. Resin Pretreatment:
Generally, a process of alkali-water-acid-water can be used; 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 stored in a salt-resistant medium with saline solution, keeping the surface from dehydration, and periodically backwashed to loosen the resin to prevent caking and spoilage.
201×8
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