Raw Materials for Refractory - Calcined Bauxite Clinker from CNBM's Rotary Kiln Bauxite in China
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- Loading Port:
- Tianjin
- Payment Terms:
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- Min Order Qty:
- 111 m.t
- Supply Capability:
- 11111111 m.t/month
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1.Structure of Calcined Bauxite Description
Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
2.Main Features of the Calcined Bauxite
Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum
hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .This removes moisture there.By increasing the alumina content,compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 84%to88%.The heating is carried out in rotary kilns.
3.Main usage of the Calcined Bauxite
(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc.
(2) precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
(3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780, chemical stability strong, and good physical properties.
(4) aluminum silicate refractory fiber. With light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity is small and the advantages of resistance to mechanical shock. Used in iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries.
(5) in magnesia and bauxite clinker as raw materials, add the appropriate binder, used for pouring ladle whole ladle lining has particularly good effects.
(6) manufacture alumina cement, abrasive materials, ceramic industry and chemical industry can be aluminum of various compound.
4. Calcined Bauxite Images
5. Calcined Bauxite Specification
Grade/Item | Chemical composition % | Bulk density g/cm³(min) | Water absorption% | ||||
AL2O3 | Fe2O3 | Ti02 | CaO+MgO | K20+Na20 | |||
GAL-88 | >=88 | <=1.5 | <=4.0 | <=0.4 | <=0.4 | >=3.15 | <=4 |
GAL-85 | >=85 | <=1.8 | <=4.0 | <=0.4 | <=0.4 | >=3.10 | <=4 |
GAL-80 | >=80 | <=2.0 | <=4.0 | <=0.5 | <=0.5 | >=2.90 | <=5 |
GAL-70 | >70--80 | <=2.0 | - | <=0.6 | <=0.6 | >=2.75 | <=5 |
GAL-60 | >60--70 | <=2.0 | - | <=0.6 | <=0.6 | >=2.65 | <=6 |
GAL-50 | >50--60 | <=2.5 | - | <=0.6 | <=0.6 | >=2.45 | <=6 |
6.FAQ of Calcined Bauxite
1). Q: Are you a factory or trading company?
A: We are a factory.
2). Q: Where is your factory located? How can I visit there?
A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!
3). Q: How can I get some samples?
A: Please connect me for samples
4). Q: Can the price be cheaper?
A: Of course, you will be offered a good discount for big amount.
- Q:what is the common materials for home fireproofing material?
- 1, lumber core 2,decoration panel 3 , plywood 4 density board 5,chipboard 6 fireproof?panel, 7.gypsum board Hope to adopt my opinion
- Q:what's the seal of fireproofing material?
- Organic fire-proof caulking is made by taking organic synthetic?resin as bond and compressing the components together after adding fireproofing agent, filler. The putty won't solidify after a long time usage and has good plasticity, can be sealed arbitrarily. This kind of putty is mainly applied in opening's fireproofing and sealing project of construction pipe and electric wire and cable, and it's used with ATD-AB and fire retardant bag together. ATD-AB is a kind of gray powder material, after mixed with water, it can be used for the opening sealing of electric wire and cable or fire resisting wall of wire tunnel. The fire proof blockage is non-toxic, and no smell, has good water resistance and oil resistance with simple construction methods. It's oxygen index is 100 and it belongs to incombustible?material. it's refractory time can reach 3 hours, or above or below. as for some projects for perpetual usage, WXY-II will save the project fee and make the project solid. A kind of fireproofing material that can automatically expand and foam and sealed by opening after injecting the foam into opening. Sealing strip is a product or flexibility coiled material mede by fireproofing material with certain geometry shape. Sealing gum is a kind of liquid fireproofing material that has a function of fireproofing and sealing. Fire retardant bag is soft and windable tape-shaped product made by fireproofing material, it is winded on the external surface of plastic pipe and fixed with steel belt or other proper methods, it's the expansion, squeezing and softening pipe after contacting with fire, opening left by burning or soften of seal plastic pipe. Fire retardant ring
- Q:What materials are needed to make the amorphous refractory bricks?
- The amorphous refractory brick is composed of a certain proportion of aggregate and powder, a binder and an additive, and it can be directly used or used after allocation with some liquids. The amorphous refractory brick is a new type of refractory material without calcination, its refractoriness is below 1580℃.There is a wide variety of refractory materials. According to the production method and usage thereof can be divided into concrete, castable, plastic refractory, ramming refractory, gunning mix, sling refractory, coating material, dry ramming mix , fire clay, and all kinds of repairing mass(Asphalt combined with large surface charge compensation, Martin also belongs to the shape of the amorphous refractory material).
- Q:What are the applications of refractory busway?
- Fire-resistant busway has excellent insulation property, and it can not only be used continuously in a normal environment, but also be used continuously when catching fire for more than one hour. It can be used in high buildings and important facilities in replace of fire-resistant cables to transmit and distribute electricity.
- Q:How long is the fire endurance of fire resistant rolling shutter door?
- According to the new national standards GB_12955-2008 for fire doors from January 1, 2009, fire doors are classified acoording to thermal insulation fireproof door(A),part heat insulation fireproof door(B) and non thermal insulation fireproof door(C), rather than thermal insulation fireproof door. At the same time, the original fire endurances of class A, B and C fire doors are adjusted to 1.5h, 1.0h and 0.5h respectively. So, GB is 1.5h
- Q:How many hours of the fire endurance time of the rock wool laminboard?
- Hello! Manager! The fire endurance of the rock wool laminboard is generally two hours. If you need the fire?rating of the rock wool laminboard, then I recommend you to buy it from the standard factory ! The one with higher fire rating can use polyurethane edge banding rock wool board and handmade glass magnesium rock wool laminboard.
- Q:What do RH and DH stand for in refractories?
- DH :An agreement that allows strangers to build shared keys, originally invented by Diffie and Hellman.
- Q:which is better as household fireproof material ?
- If it is from the perspective of fire rating inorganic active insulation material for wall thermal, cement foam insulation board, glass beads of insulation movitrified?micro bead?thermal insulation?mortar, rock wool board, glass wool board, ect.. thermal insulation material are Class A fireproofing, polyphenyl board, extruded sheet, phenolic foam board, Polyurethane board, ect..belong to B1 level fireproofing, if it is used for external wall thermal insulation in decorative board, then rock wool board is more often used.
- Q:What is the magnesium carbon refractory?
- The composition of refractory brick There are many types of raw materials of refractory brick, mainly divided into six categories: Soil, stone, sand, mineral, power and others. The first kind of raw material, soil: Aluminum soil, kaolin, clay, diatomaceous earth The second kind of raw material, Stone: Fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, chlorite, dolomite, sillimanite, magnesia-alumina spinel, silica The third kind of raw material, sand: Pottery, zircon sand, quartz sand, magnesite The fourth kind of raw material, ore: Chrome ore The fifth kind of raw material, powder: Aluminum powder, silica powder, silicon powder The sixth kind of raw material of refractory brick, others: Asphalt, graphite, phenolic resins, perlite, cenosphere, sialon, corundum, silicon sulfate, silicon carbide, sodium silicate, silica solution, boron carbide, calcium aluminate cement, nitride material, shale ceramisite, alumina, alumina sol and zirconia, etc.
- Q:What is the particle size of boron carbide for refractories?
- Ask, in the electric furnace magnesia carbon brick, boron carbide amount how many? Thank you The service temperature is around 1600.
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Raw Materials for Refractory - Calcined Bauxite Clinker from CNBM's Rotary Kiln Bauxite in China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 111 m.t
- Supply Capability:
- 11111111 m.t/month
OKorder Service Pledge
OKorder Financial Service
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