Are ceramic Bauer rings resistant to alkali?

Pall rings are developed on the basis of Raschig rings. The upper and lower layers of the annular wall are bent inward with tongues. This product is light in weight. Each layer of the window is equipped with five tongues, each of which bends inward toward the center of the ring, and the positions of the upper and lower layers are relatively staggered. The area of the window accounts for about 35% of the annular wall. Regardless of the orientation of the Pall rings in the packed tower, the liquid sprinkled on the packing flows either along the outer wall, through the small windows to the inner wall, or along the blades to the center. In this way, the dispersion of the liquid is increased, and the utilization rate of the inner surface of the packing is improved. The blades bent to the center of the ring increase the turbulence of the gas, and the staggered windows reduce the stagnant dead zone between adjacent packings. The Pall ring packing has uniform gas-liquid distribution and a large two-phase contact area, so the mass transfer efficiency is correspondingly improved. Pall ring packing operates within a wide range of gas velocities to maintain constant mass transfer efficiency, which is particularly suitable for direct air distillation operations.

Ceramic Pall ring packing has excellent acid and alkali chemical corrosion resistance, high strength and high temperature resistance. The main principle is: it adopts the main crystal phases of quartz and mullite products, uses feldspar glass and kaolin sintered body as the structural bridge, and borrows the high mechanical strength and high temperature resistance of kaolin sintered body and quartz crystal. It has the advantages of oxidation resistance, wear resistance, air impact resistance, strong acid and alkali chemical corrosion resistance, dense sintering and extremely low chemical activity, making the product durable.