Magnetic styrene alkali anion exchange microsphere resin and preparation method thereof

Abstract

The invention discloses a magnetic styrene alkali anion exchange microsphere resin and a preparation method thereof. The resin comprises a basic framework and magnetic particles positioned inside the basic framework. The basic framework of the resin has the structure as follows: radical A is one or a plurality of the picture below, wherein n is 1, 2, 3 to 20, R1, R2 and R3 are alkyl, and X is C1 or OH. The method comprises the following steps of: adding a dispersant to a water phase; mixing reactants, a stabilizing agent and a pore-foaming agent to form an oil phase; adding an evocating agent to the oil phase for full dissolution; adding the magnetic particles to the oil phase, adding the oil phase to the water phase to obtain resin particles, filtering to remove water content, and washing or extracting the resin particles; and swelling the obtained resin particles, and adding an amine reagent. The invention simplifies traditional synthesis process, and prepared resin has magnetism and has higher alkali exchange capacity and can be used for separating or removing dissolved organic matters and a plurality of anions in various wastewater, drinking water or natural water.

Description

technical field The invention relates to a strong base anion exchange microsphere resin and a preparation method thereof, in particular to a styrene series strong base anion exchange microsphere resin containing magnetic particles inside and a preparation method thereof. Background technique Styrene resins are currently the most productive resins in the world, and are widely used in separation, purification and detection of bioengineering, drug synthesis, and food processing. In recent years, macroporous styrene-based anion exchange resins have played an important role in the treatment and recycling of wastewater. However, the adsorption and desorption performance of the resin is often controlled by kinetic factors. The resin with smaller particles has a higher external specific surface area, and the kinetic performance is also greatly improved, so its adsorption and desorption performance is obviously superior to that of the resin. Resin with larger particles. However, in...

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Problems solved by technology

Aiming at problems such as high exchange capacity and strong magnetic resin products cannot be prepared, magnetic particles are difficult to exist stably in the synthesis process, and are difficult to distribute evenly, the magnetic styrene-based strong base anion exchange resin provided by the present invention and its The preparation method aims to prepare the magnetic styrene-based strong base anion exchange microsphere resin with strong magnetism and high exchange capacity, and uses a simple and easy process to uniformly disperse the magnetic particles in the monomer. The monomers containing chloromethyl groups are polymerized as monomers, avoiding the chloromethylation process, protecting the magnetic particles, and finally realizing the synthesis of magnetic strong base ion exchange resins

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