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  • 201×7FG
201×7FG
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201×7FG

201×7FG 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. It is mainly used for pure water preparation, wastewater treatment, biochemical products, and the extraction of gold, silver, tungsten, molybdenum, and other metals in hydrometallurgy.

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  • 1. Product Introduction:

    Lijiang Brand 201× 7 FG is a gel-type strong base 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. It is mainly used for pure water preparation, wastewater treatment, biochemical products, and the extraction of gold, silver, tungsten, molybdenum, etc. in hydrometallurgy.

     

    2. Performance Indicators:

    Appearance

    White to light yellow transparent beads

    Maximum Regeneration Capacity

    ≥3.8 mmol/g

    Strong Base Group Capacity

    ≥3.5 mmol/g

    Volume Exchange Capacity

    ≥1.35 mmol/ml

    Moisture Content

    42%~48%

    Wet True Density

    1.07~1.10 g/ml

    Wet Apparent Density

    0.67~0.73 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%

    Color Degree

    ≤25 APHA

     

    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 the extraction of gold, silver, tungsten, and molybdenum in hydrometallurgy.

     

    5. 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 concentration; during transportation, 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, and finally treated to the required ionic 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 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 not used for a long time in the column should be washed and removed for storage, or stored in saltwater in a salt-resistant medium, keeping the surface from dehydration. Periodic backwashing is also required to loosen the resin and prevent caking and spoilage.

201×7FG


201×7FG 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. It is mainly used for pure water preparation, wastewater treatment, biochemical products, and the extraction of gold, silver, tungsten, molybdenum, and other metals in hydrometallurgy.

You can also leave us a message to get the latest product information!

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