Сeramic Raschig Ring 80х80х8,5 mm, VFF
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Description
Ceramic Raschig ring is common regular packing that they are still used for refilling existing columns and other applications. Its surface ratio is higher than ceramic cylinders and balls by 30% and its ring shape has high mechanical stability.
Ceramic Raschig rings is the first development of a random packing. Simple shape, it is the same height and diameter of the ring. Raschig rings large size (≥100mm) are structurally packed in the column, for small size<100mm below the Raschig rings and more filled with heaps way. Ceramic Raschig Rings with excellent acid resistant properties, the ability of resisting various inorganic acid, organic acids and organic solvents corrosion (except HF acid), high temperature in a variety of occasions, wide range of applications, can be used for chemical industry, metallurgy, gas and environmental protection industries in the drying tower, absorption tower, cooling tower, scrubber, regeneration tower.
Features:
Specific gravity: 2.3-2.5 g / cm3
Water absorption (DIN EN 993-1): < 0.3%
Porosity (DIN EN 993-1): < 0.7%
Mohs hardness ~ 8
Specific heat: ~ 0.84 kJ / (kg • K)
Thermal conductivity: ~ 6.3 kJ / (m • h • K)
Thermal expansion: ~ 4.7 • 10-6 1 / K
Maximum temperature: ~ 1000 ° C
Acid resistance (DIN 51102): ~ 99%
Resistance to alkalis (DIN 51103):> 97%
Chemical composition:
SiO2 + Al2O3> 90%
Al2O3 ≳ 20%
Fe2O3 ≲ 1.5%
TiO2 <2%
CaO + MgO ≲ 1%
K2O + Na2O ≤ 4%
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