selection criteria of exchange resin

Physical properties include shape, particle size, color, density, particle swelling degree, mechanical strength, and thermal stability, while adsorption properties include full exchange capacity. Capacity, adsorption equilibrium rate, and desorption performance under different media and pH values. The shape of ion exchange resin is mostly spherical, and it is directly formed during polymerization, with a sphericity rate of over 90%. The filling state of spherical resin is good, and its wear resistance is also better than other shapes. Particle size refers to the diameter of resin particles that have fully expanded in water. In water treatment, the commonly used resin particles are 0.3~1.2mm. The size and uniformity of resin particles have a significant impact on ion exchange water treatment processes.