China Ceramic Cylindrical Raschig Ring

Ceramic Cylindrical Raschig Ring:
ceramic Rashing Ring can resist high temperature, acid (except HF), alkali, salt and various organic solvents. It's widely applied in various packing towers of desiccation, absorption, cooling, washing, and regeneration in industries of petrochemical, chemical, metallurgy, gas and oxygen generation.
It's used in commercial fractional distillation towers to reduce pressure loss (versus using trays), while maintaining good efficiency and economy. Typically the change in pressure (also called "delta p") is lower than in the case of trays but slightly higher than for structured packing.
For raschig ring with big size over 100mm, it's usually filled in the column orderly. If its size is less than 90mm, raschig ring is stacked in the column randomly.
Technical Specifications

Item Value Water absorption <0.5Apparent Porosity<1Specific gravity 2.3-2.35Operation temperature 1000 ºCMoh's Hardness>6.5 Scale Acid Assistance >99.6 %Alkali assistance >85 %

SpecD X H X δSpecific surface areaVoid volumeBulk number Bulk density Dry packing mmmm*mm*mmm2/m3m3/m3n/m3kg/m3m-1Φ3mm3*3*116200.821011000013003850Φ6mm6*6*27890.7331100007372030Φ10m10*10*24400.77200007001280Φ15mm15*15*23300.7250000690960Φ25mm25*25*2.51900.7850000580400

Chemical composition

SiO2Al2O3Fe2O3CaOK2O+Na2O>70%23-30%<1%<1-2%<2-4%

Physical properties

IndexValueSpecific gravity(g/cm3)2.25-2.35Water absorption(%)<0.5Acid-resisting strength, %Wt. Loss (ASTMc279)<4Firing temperature(Degree C)1280-1320Softening point( Degree C)>1400Density(kg/m3)2350