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1:General Material Description:
Corundum filter element is a porous filter ceramic composed of corundum grains (α-Al2O3) sintered by a alumosiliceous bond. Main components are splintery, dense electro-corundum grains that build a finefiltering ceramic structure with very narrow pore size distribution. The special feature of this filter media is its highly porous structure with its large internal surface area. Therefore it is suitable especially for depth filtration applications.This filter elements are successfully used for the filtration of liquids and gases.
2:Physical Properties:
Corundum filter element
Unit | ||
Filtration fineness | μm | 1-100 |
Porosity | % | 33-50 |
Material density | g/cm³ | 1.8 |
Bending strength | Mpa | 20-80 |
Max. temperature resistance1 | oC | 900 |
Operating pressure | Mpa | -0.1-8 |
Expansion coefficient(25-800 oC) | 10-6/K | 8.5 |
1Depending on operating conditions |
3:Chemical Resistance:
It’s resistant against most acids, saline solutions and organic solvents, liquid or gas covering the complete acid,neutral and alkali range up to pH 11,exept hydrofluoric acid and fully desalted water.
4:Standard Dimensions
Type | Item No. | Do/Di (mm) | Length (mm) | Area (m²) | Weight (kg) | ||
Flanged Candle | DQCRFC-1 | 60/40 | 1000 | 0.18 | 3.0 | ||
Flanged Candle | DQCRFC-2 | 110/80 | 1000 | 0.34 | 8.3 | ||
Flanged Candle | DQCRFC-3 | 60/40 | 500 | 0.09 | 1.6 | ||
Flanged Candle | DQCRFC-4 | 110/80 | 500 | 0.17 | 4.3 | ||
Cylinder | DQCRCL-1 | 60/40 | 1000 | 0.18 | 2.8 | ||
Cylinder | DQCRCL-2 | 110/80 | 1000 | 0.34 | 8.0 | ||
Cylinder | DQCRCL-3 | 60/40 | 500 | 0.09 | 1.4 | ||
Cylinder | DQCRCL-4 | 110/80 | 500 | 0.17 | 4.0 | ||
Plate | DQCRPL | < 500×500×30mm ; < Ø400×30mm | |||||
Special dimensions and special products on request. | |||||||
5:Applications:
Filtration of liquids and gases.
e.g.
a:Filtration of various kinds of chemical fluids and chemical products:e.g.calcium chloride,Soduim Acetate,ammonia water,Caustic soda,concentrated sulphuric acid,aluminium hydroxide;
b:Filtration of catalyst and decoloration liquids of activated charcoal in pharmacy and chemical industry;
c: Filtration of water treatment,e.g. industrial waste water,industrial circulation cooling water,high purity process water;
d: Filtration of gases:e.g. compressed gas from air compressor,high pressure sterile air,steam,catalysis air of petrochemical industry,separation of acid mist,high temperature dusty gas in environmental protection industry;
e:Filtration of fertilizer industry,e.g.mixed gas filtration for HNO3 synthesis;methane,sludge gas,bio gas;
f: Filtration of sands from various kinds of medium:e.g. extracting oil,pumping water from the well;