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)
Wash the resin with water after the water is clear, with 5%HCl soak 4-8 hours, put the acid solution, rinse with water to neutral, and then soak in 2-4%NaOH solution for 4-8 hours, put the lye, rinse with water to neutral stand-by.