Ceramic raschig ring, Ceramic cylindrical ring, Ceramic rasching ring

Product Description  Ceramic Raschig ring is the first development of a random packing, with simple shape and the outside diameter is equal to the height. Raschig rings large size (100mm or more) are structurally packed in the column, small size (100mm below) are random packed in the column. Ceramic Raschig ring has excellent acid resistance and heat resistance. It can resist to corrosion of various inorganic acids, organic acids and organic solvents except hydrofluoric acid and can be used in high or low temperature conditions. Consequently the application range is very wide. It can be widely used in drying tower, absorption tower, cooling tower, scrubber and regeneration tower among the fields of chemical industry, metallurgy, gas, and environmental protection industries. Size: From 6mm-100mm all available. Chemical Composition

Composition	Value	Composition	Value
SiO2	68-72%	MgO	0.6%
Al2O3	18-22%	CaO	0.6%
Fe2O3	<1.0%	K2O	3.5-4.5%
Dissociation Fe	<0.01%	Na2O	0.1-0.3%

  Physical Properties

Index	Unit	Value
Specific gravity	g/cm³	2.3-2.4
Water absorption	%Wt	0.1-0.5
Hardness	Moh's Scale	7-8
Compression strength	N /mm²	300-500
Elasticity coefficient	GPa	60
Specific heat, 20°C-100°C	J/kg.K	840-920
Thermal conductivity, 30°C-100°C	W/m.K	1-1.5
Thermal expansion coefficient	10-6K-1	4.7
Acid resistance (DIN51102 sheet 2)	%	99.5
Heat resistance	°C	≥1000

  Technical Data

Diameter (mm)	Dimension d×h×δ (mm)	Surface Area (m2/m3)	Void fraction (%)	Bulk number (n/m³)	Bulk Density (Kg/m3)	Packing Factor (m-1)
Φ16	16×16×3	250	66	178000	820	870
Φ25	25×25×3	147	78	42000	510	310
Φ38	38×38×4	100	80	12000	458	195
Φ50	50×50×5	80	81	5600	465	156
Φ76	76×76×9	62	75	1700	575	147
Φ100	100×100×10	70	70	1000	700	172