Equipment and method for producing uniform particle ion exchange resin beads

Abstract

The invention discloses equipment and a method for producing uniform particle ion exchange resin beads. The equipment comprises a head tank 1, an oil phase storage tank 2, a vibration generator system 4, a nozzle 6, a fluidized polymerization reactor 8, an aqueous phase liquid distributer 9, a maturation tank 10 and an aqueous phase circulating pump 11; and the ion exchange resin beads produced by the equipment have uniform particle size. When the method is used for producing the ion exchange resin bead products, the production capacity of the equipment can be adjusted by changing the number of orifices of the nozzle and the mass fraction of the target particle size of + / -0.05mm is more than 95 percent without sieving; and in the method, the aqueous phase can be recycled, so that the wastewater discharge is reduced; therefore, sewage discharge in the reaction process is greatly reduced.

Description

technical field [0001] The invention belongs to equipment and a production method for producing ion exchange resin polymer beads (white balls). technical background [0002] Ion exchange resin is a functional resin, which is widely used in industrial production and scientific research fields such as industrial water treatment, petrochemical industry, electric power, metallurgy, medicine and food, and its application field is still expanding. [0003] The particle size of ion exchange resin is determined by the particle size of its polymer beads (white balls). The existing suspension polymerization method is to mix styrene, divinylbenzene, initiator and porogen evenly, and then disperse them into oil beads in the water phase containing dispersant under the action of stirring, and the oil beads are in the water phase. Coalescing and fragmentation continue to occur, resulting in varying sizes. In order to make the oil beads fully coalesce and break up in the water phase, the ...

AI Technical Summary

Problems solved by technology

However, this method is only applicable to the oil phase system in which the oil droplets with a density smaller than the water phase are aggregated into polymer beads with a density higher than the water phase during the polymerization process, and the requirements for the system are relatively strict.

As for the macroporous ion exchange resin, since the density of its monomer and polymer beads is always smaller than that of the water phase, this method cannot be used for preparation.

Images