RP-99 is widely used as catalyst and adsorbent bed support in refining, petrochemical and gas processing applications, where low silica content or high density is required.
Available sizes: 3mm, 6mm, 10mm, 13mm, 19mm, 25mm, 38mm, 50mm, 75mm
Chemical composition:
SiO2 í_0.20%
Al2O3 í¦99.2%
CaO 0.08%
TiO2 0.05%
MgO 0.05%
K2O 0.04%
Na2O 0.09%
leachable Iron less than 0.01%
Physical properties:
Free volume (%) 40
Water absorption (wt. %) ú+3
Hardness, Mohsí» ú+8
Particle density ( gm/cc ) 3.5
Bulk density (kg/m3) 1900-2100
Maximum operating temperture(íµ) 1800
Descriptions:
High-alumina bricks are made from bauxite, a naturally occurring material containing aluminum hydroxide (al[oh]3) and kaolinitic clays. These raw materials are roasted to produce a mixture of synthetic alumina and mullite.
By definition high-alumina bricks contain between 60 and 95 percent alumina and much more robust than fireclay refractories at high temperatures and in basic environments.
In addition, these bricks exhibit better volume stability and abrasion resistance.
Applications:
High-alumina bricks are used in blast furnaces, blast-furnace stoves, liquid-steel ladles, steel refining furnaces, glass tanks, ceramic kilns, enamel kilns, rotary cement kilns and other vVarious kilns and furnaces.
High alumina balls
Catalyst carriers and bed materials - hi-alumina balls, ceramic balls and refractory balls
We provide +-al2o3+tio2+sio2 and al2o3+tio2 catalyst carriers, which would be used in the oil refinery, petrochemical industry and chemical industry. Alumina catalyst carriers, which contain above 95% al2o3, take the shapes of ball, cylinder palette and rash rings. Hi-alumina balls (al2o3 85% to 95%), ceramic balls (al2o3 18% to 45%) and refractory balls, which act as supporting, bed materials for the catalyst in reactors. They have the characteristics of high temperature resistance and high-pressure resistance. The diameter size we manufacture is from 3mm to 50mm.
Our high alumina brick is manufactured with selected bauxite chamotte as main material, fired at high temperature by advanced process with strict quality control.
High alumina, as the name tells, meaning the content of alumina percentage is higher than 45. And alumina is one of the most chemically stable oxides, it offers excellent hardness, strength and spalling resistance. Our high alumina brick is widely used in industries which need heat insulation, such as the linings of masonry furnaces, hearth and shaft of blast furnaces, ceramic kilns, glass tanks, cement rotary kilns and so on.
Features:
1. It has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance.
2. It has the lowest and most stable thermal conductivity in various insulating refractory bricks.
3. It can reduce the total weight of furnace body and the thickness of furnace wall effectively, improve heat efficiency, lower energy consumption, improve work conditions and production efficiency, and considerable economic benefit can be obtained.
Application:
It is not only widely used in insulating layers of various of thermal processing equipments, such as hot blast furnace, coke oven, glass kiln, etc, but also apply to linings in parts of furnace without strong high-temperature molten material erosive.
Item High Alumina Insulating
LG-1.0 LG-0.9 LG-0.8 LG-0.7 LG-0.6 LG-0.5 LG-0.4
Al2O3 % 48
Fe2O3 % 2.0
Bulk Density g/cm3 1.0 0.9 0.8 0.7 0.6 0.5 0.4
Cold Crushing Strength Mpa 3.92 3.43 2.94 2.45 1.96 1.47 0.78
Thermal Conductivity Coefficient w/m.k 0.45 0.45 0.35 0.35 0.3 0.25 0.20
Test Temperature of Permanent Linear Change Rate 2% C 1400 1400 1400 1350 1350 1250 1250
High alumina ball means alumina ball with aluminium oxide content higher than 90%, high alumina ball is high efficiency grinding media in today industry. The high alumina ball works together with the high alumina mill linings brick will benefits you:
> Less grinding time, doubled productivity.
> Less wear loss of the ball and linings, more clean you final product keep.
> Longer service life, less down time
Physical Properties:
1) Bulk Density : 60mm > 3.65, 50mm > 3.65, 40mm > 3.65, 30mm > 3.65, 20mm > 3.63
2) Self Wearloss (24h) : < 0.04
3) Water absorption : < 0.1%
4) Hardness (M0hs) : 9
5) Service Temp : > 1600 C
6) Color : White
1.Description
High alumina fire brick contain al2o3 more than 48%, which is made of high grade bauxite through high temperature calcinations. Its refractories is usually above 1770 ¡ãc. The main mineral components are corundum and mullite phases. It is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion. According to al2o3 content, it can be divided into three degrees:the al2o3 content is more than 75%.The al2o3 content range from 60% to 75%.The al2o3 content range from 48% to 60%.
2.Feature
1. High-temperature endurable .
2.Good thermal shock resistance.
3.High cold crushing strength
4.Good resistance to abrasion and corrosion.
5.Good thermal spalling resistance.
6.High mechanical strength.
7.Good volume stability at high temperature.
3.Applications
High alumina fire brick is used for building blast furnaces, hot blast stove, electric stove roof, ladle, blast furnace and reverberatory furnace, lining of rotary kiln and glass kiln and chemical industrial kiln. In addition, high alumina brick is widely used as regenerative checker brick of open hearth, pouring system with the plug head, nozzle brick, etc.
On wooden pallets with plastic cover
Pallite size:1.05*1.05m
High alumina bricks are commonly utilized in industries such as steelmaking, cement manufacturing, and non-ferrous metallurgy for lining furnaces, kilns, and other high-temperature equipment due to their excellent resistance to thermal shock, abrasion, and chemical corrosion.
Also known as alumina cement, high alumina cement refractory cement, aluminate cement, collectively known as aluminate cement, bauxite and limestone as raw material, after the calcination of calcium aluminate as main ingredients, alumina content is about 50% of the clinker, again into the water rigid gelled material.
High alumina cement is often yellow or brown, and gray. Shizuishan jin lin corundum refractories co., ltd., the production of high alumina cement has a rapid hardening, early strength, corrosion resistance, resistance to high temperature of the water rigid gelled material; it is a kind of high-quality building materials, is also a kind of loose refractory for gelling property, in metallurgy, building materials, oil chemical, electric power, food and other industries has been widely used.
Jin lin alumina cement is also known as aluminate cement, refractory cement, the equivalent of 625 # cement, because of its excellent fast setting, high strength, high temperature resistance characteristic, a day strength can reach 80%, up to 1450 degrees refractoriness, refractory concrete strength can reach 55 mpa, is the excellent high temperature industrial kiln project one of binder materials.
1. Preparation of monolithic refractories.
2. Make plaster alumina expansive cement, self-stressing cement cement and other special purposes.
3. The scrambling, repair, resistance to sulfate erosion and winter construction engineering and other special needs
High aluminum refractory brick belongs to the silicate aluminum refractory, it is a common refractory produced from refractory clay and high bauxite. The main mineral composition of these kinds of products is aluminum oxide, mullite and corundum, with good physical properties, through chemical analysis and physical experiments, the indexes such as refractoriness and soft charge all reach international and ministerial standards, widely used in blast furnace, hot air stove, thermal storage room, machinery manufacturing, petrochemical and other industries.
Introduction of our company
Gongyi taurus refractory material factory is a professional refractory materials manufacturers and refractory materials suppliers, mainly supply refractory bricks, unshaped refractories, silicon carbide refractory castable, castable refractory cement, pouring material, castable refractory concrete, silica ramming mass etc. Series of refractory materials products, sincerely welcome everyone to visit.
We, Imperial World Trade produces High Purity High Alumina Binders in a position of the art plant following severe process control. Setting features and Durability features of these binders provide in a major way after encouraging utilization and production of castable refractories.
The high alumina reapers, used for making impliable castables, are calcium aluminate cement. Lanexis in connected with Calderys who affords three categories of high alumina binders-Corundum. Corundum, a medium purity above alumina refractory binder, sets hydraulically and when practiced with refractory sums, gives a high-energy refractory castable.
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