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D113
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D113

D113 macroporous weakly acidic cation exchange resin is a cation exchange resin with carboxyl groups (-COOH) on a macroporous acrylic copolymer structure. It is mainly used in industrial water treatment, especially for removing carbonates, bicarbonates, and other alkaline salts. It can also be used in zinc and nickel wastewater treatment and recovery, as well as in the separation and purification of biochemical pharmaceuticals.

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  • 1. Product Introduction:

      D113 macroporous weakly acidic cation exchange resin is a cation exchange resin with carboxyl groups (-COOH) on a macroporous acrylic copolymer structure. It is mainly used for industrial water treatment, especially for removing carbonates, bicarbonates, and other alkaline salts. It can also be used in zinc and nickel wastewater treatment and recovery, as well as in the separation and purification of biochemical drugs.
      The D113 resin series mainly includes three varieties, among which D113 is the general-purpose type. D113FC is suitable for dual-bed and fluidized bed systems; D113SC is suitable for dual-bed systems.

     

    2. Performance Indicators:

    Appearance

    Milky white or light yellow opaque spherical beads

    Delivery Form

    H+

    Total Exchange Capacity

    ≥10.8 mmol/g

    Volume Exchange Capacity

    ≥4.4 mmol/ml

    Moisture Content

    45%~52%

    Wet True Density

    1.14~1.20 g/ml

    Wet Apparent Density

    0.72~0.80 g/ml

    Particle Size Range

    0.315~1.25 mm

    Effective Particle Size

    0.40-0.70 mm

    Uniformity Coefficient

    ≤1.6

    Sphericity Rate

    ≥95%

    Swelling Rate during Conversion (Hydrogen form to Sodium form)

    ≤70%

    Hydrogen Form Rate

    ≥98%

     

    3. Reference Operating Conditions:

    Maximum Operating Temperature

    H 100°C, Na 120°C

    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 of 3~5% HCl, 2 BV of 2~4% NaOH

     

    4. Product Applications:

    Industrial water treatment, especially for removing carbonates, bicarbonates, and other alkaline salts. It can also be used in zinc and nickel wastewater treatment and recovery, as well as in the separation and purification of biochemical drugs.

     

    5. Precautions:

    1. Transportation and Storage of the Product:

    Store the product in a wet state, preferably at temperatures above 0°C; if unused for a long time, it can be sealed or stored in a brine solution above; 5% during transportation, mainly prevent freezing. Do not place heavy objects on the resin to avoid crushing.

    2. Resin Pretreatment:

    Generally, alkaline -water - acid - water treatment in one process is required; for strict requirements, three cycles are needed, finally treating to the required ion form.

    3. Resin Loading:

    Consider the swelling rate during resin conversion, reserve enough space to prevent resin overflow and ensure proper liquid level; the column diameter ratio should be within a reasonable range 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 unused in the column for a long time should be cleaned and removed for storage, or stored in saline medium with brine, keeping the surface from dehydration. Periodic backwashing of the resin is also necessary to loosen the resin and prevent caking and spoilage.

D113


D113 macroporous weakly acidic cation exchange resin is a cation exchange resin with carboxyl groups (-COOH) on a macroporous acrylic copolymer structure. It is mainly used in industrial water treatment, especially for removing carbonates, bicarbonates, and other alkaline salts. It can also be used in zinc and nickel wastewater treatment and recovery, as well as in the separation and purification of biochemical pharmaceuticals.

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