What are the common particle sizes of D301 macroporous weakly basic anion exchange resin?
D301 macroporous weakly basic anion exchange resin is usually made into small beads, and its size is also important. Those with finer resin particles have a higher reaction speed, but the resistance of the fine particles to the passage of liquid is greater, which requires a higher working pressure; especially the high viscosity of concentrated sugar liquid, this effect is more significant. Therefore, the size of the resin particles should be selected appropriately. If the resin particle size is below 0.2mm (approximately 70 mesh), it will significantly increase the resistance of fluid flow, reduce the flow rate and production capacity.
The size of resin particles is usually measured by a wet sieve method. The resin is sieved after fully swollen by water absorption, and the accumulated amount on the 20, 30, 40, 50... mesh screen is accumulated, and 90% of the particles can pass through it. The diameter of the mesh is called the "particle size" of the resin. The particle size of most general-purpose resin products is between 0.4 and 0.6 mm.
Whether the resin particles are uniform is expressed by a uniform coefficient. It is the ratio of the diameter of the sieve pores to the particle size of the cumulative retention of 40% of the particles on the graph of the "particle size" of the measured resin. If the particle size of a resin (ir-120) is 0.4～0.6mm, the particles retained on the 20 mesh sieve, 30 mesh sieve and 40 mesh sieve are: 18.3%, 41.1%, and 31.3%, the calculation is uniform The coefficient is 2.0.
The company specializes in ion exchange resin products, is a large-scale enterprise integrating design, production, sales and service, and conducts technical cooperation with scientific research departments such as the Ministry of Electric Power and Sinopec. And the strong support of Tianjin Chemical Industry. The company adopts a model closely integrated with the industrial water treatment industry, introducing excellent water treatment technology and serving the market.