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Ion Exchange Resin Storage Advice

  • Ion exchange resin contains a certain amount of water,which should be maintained during storage and transportation. If there is dehydration when storage,we should saturate the resins with 10% concentration of NaCl/salt Solution. To make resins slowly&fully expand and then use pure water to dilute gradually. Do not put resins into water directly for preventing resins from swelling quickly and breaking.

    Ion exchange resins should be avoid of the rust, oil,strong oxidant, and organics pollution, to stop oxidative degradation&poisoning happening.

    Ion exchange resins can’t be exposed to sunlight directly. The storage temperature should be at 5-40 ℃. Too hot or too cold will cause accelerated microbial reproduction or resins frozen and crack, then reduce resins’ performance.

    You can put resins into NaCl/salt solution if you don't have attemperator in winter or too cold atmosphere. The concentration of NaCl/salt solution can be decided by the temperature to avoid freezing.

Anion and Cation Exchange Resin pretreatment

  • Ion exchange resin often contains solvent, did not participate in the polymerization of substances and a small amount of low polymer, may also absorb iron, copper, aluminum and other metal ions, when the resin and acid or other solutions contact, the above soluble impurities, will be transferred into the solution, in the early use, pollution of the water quality.Therefore, the new resin should be pretreated in the ion exchange equipment before use.


    The pretreatment of Cation Exchange Resin:

    1.Use Saturated salt water, the amount is 3 times of the resin to be treated,Soak the resin in salt water for 18-20 hours,Remove the Salt water, Rinse with clear water so that the discharge water is not yellow.

    2.Use 2-4% NaOH Solution,The amount is 3 times of the resin to be treated. Soak for 4 hours, remove the  alkali liquor ,then Wash to neutral.

    3.Last,Use 5% Hcl Solution,the amount is 3 times of the resin to be treated, Soack for 4-8 hours, remove the acid liquid, then wash to neutral.


    The pretreatment of Anion Exchange Resin:

    1. Use Saturated salt water, the amount is 3 times of the resin to be treated,Soak the resin in salt water for 18-20 hours,Remove the Salt water, Rinse with clear water so that the discharge water is not yellow.

    2.Use 5% Hcl Solution,the amount is 3 times of the resin to be treated, Soack for 4-8 hours, remove the acid liquid, then wash to neutral.

    3.Use 2-4% NaOH Solution,The amount is 3 times of the resin to be treated. Soak for 4 hours, remove the  alkali liquor ,then Wash to neutral.

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