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[method] pretreatment method of ion exchange resin

发布时间:2016-12-14 阅读次数:

Ion exchange resins for industrial products must be pretreated to remove excess solvents, oligomers, or other impurities in the resin, which may affect the exchange and effluent quality. It can also improve the stability of the resin to be transferred to the desired ionic form, and it can play the role of activated resin.

The new factory soon after the resin, must be repeatedly washed into the water for the water, and then according to the order of pretreatment.

For the long time of the resin, saturated salt water immersion treatment, after washing and then pretreatment.

For the pharmaceutical industry, the food industry, resin, according to special requirements for processing.

Pretreatment of a resin

The resin with water to clear water after immersed in 2-4%NaOH solution for 4-8 hours, exhausted lye, washing resin until the discharge water close to neutral; then 5%HCl for 4-8 hours, exhausted acid, rinse with water until neutral.

Pretreatment of anion resin (b)

The resin with water to clear water after soaking in 5%HCl 4-8 hours, exhausted acid, rinse with water to neutral, then 2-4%NaOH solution for 4-8 hours, exhausted lye, rinse with water until neutral.