Alumina Bubble refractory Brick

Features of Alumina Bubble Brick:

• High Using Temperature can be above 1750℃ with good thermal stability. Small reheating Linear change rate, longer service life.

• Optimized structure reducing the weight of the furnace:
The bulk density of alumina bubble brick is only 1.1 ~ 1.5g / cm, the weight can be reduced 1.1-1.9t for 1 cubic meter by using alumina bubble brick.

Alumina Bubble Brick

• Material Saving:
It can save 80% fire-resistant insulation material by using alumina bubble brick.

• Energy Saving:
Alumina hollow ball brick has significant insulation properties and low thermal conductivity, which can have a very good insulation effect, reduce heat dissipation, improve thermal efficiency, and thus serve the purpose of saving energy with Energy savings 30%.
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Micro Silica | Micro Silica | Micro Silica

Micro silica, or Silica Fume in the special refractories can form a multi-layer protective layer during oxide. Micro silica has good mechanical properties and resistance to high temperature and oxidation. The special refractory with micro silica powder has obvious improving on the flowability, sintering properties, binding, filled pores performance.

Micro silica

Micro silica Physicochemical Properties:

1, Micro silica appearance: white；Refractoriness > 1600 ℃； Bulk density: 200 to 250 kg / m3.
2, Micro silica fineness: 90% fineness of 0.1μm; average particle size of 0.1 ~ 0.2μm, specific surface area: 20 ~ 28m2 / g. Micro silica fineness and specific surface area is 80 to 100 times of that  of cement, 50 to 70 times of fly ash.

3, Micro silica particle morphology and mineralogical structure: Due to the surface tension of the phase change, micro silica fume forms into amorphous phase amorphous spherical particles with smooth surface, or a plurality of ball particles stick together.

Micro silica fume is a high activity pozzolanic material with large surface area. Micro silica in materials will play the role of lubrication with the tiny spherical body.
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Brown Fused Alumina | Brown Fused Alumina | Brown Fused Alumina

Brown Fused Alumina Raw materials:

1. bauxite: main raw material of smelting corundum, corundum ceramics and single crystal corundum. Bauxite, also known as alumina, main content is aluminum trihydrate (Al203 3H20),  boehmite (A1203 H20), as well as mixtures of opal, hematite, goethite and other minor components. It has requirements on chemical composition, degree of dehydration, melting point and the block for the production of brown corundum.

Brown Fused Alumina

2. carbon materials: reducing agent of corundum smelting, commonly used material are petroleum coke and anthracite.

3. iron: refining agent and diluents for corundum smelting and dilution of silicon alloy density, commonly used materials are steel scrap, cast iron scrap.

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Brown Fused Alumina Data:

Item	Data
Color	Dark brown (dark blue after firing)
Appearance	Trigonal
Hardness (Mohs)	≥9.0
Melting point (℃)	2250
Maximum use temperature (℃)	1900
density (g / cm3)	≥3. 90
Linear expansion coefficient (0-1600 ℃)	7—9

White Corundum | White Corundum | White Corundum

White corundum is a kind of fused alumina products made from high quality alumina powder. White corundum is characterized of high hardness, high purity, excellent self-sharpening, big grinding power, less heat, high efficiency, acid corrosion, high temperature resistance, good thermal stability. As a refractory material, white corundum can be pickling white corundum powder or aggregate granules.

White corundum

Fused White Corundum:

Fused white corundum is mainly processed by high temperature smelting. The main components of white corundum is Al2O3 with content not less than 98.5%, less impurities, high purity, white in color. Since the excellent hardness, bulk density and relatively high specific gravity, fused white corundum is widely used as high temperature refractory materials, abrasive, polishing, sandblasting and other electronic industries.

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Technical Data:

Specification	chemical composition %
	Al2O3	Na2O	Magnetic material %	SiO2
180#—0 200#-0 320#-0	≥99.3	≤0.4	≤0.06	≤0.05

Magnesium Aluminate Spinel | Magnesium Aluminate Spinel | Magnesium Aluminate Spinel

3. Features of Magnesium Aluminate Spinel: high bulk density, high mineral phase content, well developed grain, uniform structure, good quality and stability. Magnesium Aluminate Spinel has good resistance to corrosion, erosion and flaking, good slag resistance, resistance to abrasion, good thermal shock resistance, high temperature performance.
4. Application: Raw material of Magnesium Aluminate Spinel bricks in cement rotary kiln, Ladle lining brick, ladle castable. Spinel is widely used in refractories, steel smelting, cement kiln and glass industrial furnace.

Magnesium Aluminate Spinel

Sintered spinel advantage: The process is a continuous ceramic process, control the feed rate of the kiln and balanced temperature distribution, the crystalline particles are very uniform with size of 30-80μm; and low porosity (<3%).

Advantages of Magnesium Aluminate Spinel: the process is with intermittent operation, a large cast block need to extend the cooling time, cooling of the cast block leading to uneven microstructure， due to rapid cooling, the outside spinel crystal is smaller than inside crystal, low-melting impurities are concentrated at the center, therefore, there is need to sorting and Homogenizing fused spinel raw material.
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Spherical Asphalt | Spherical Asphalt | Spherical Asphalt

Spherical asphalt has fixed carbon, Toluene insolubles, High resin content and low ash content, which is widely used in Iron trough castable, gunning in blast furnace, Ramming materials and unshaped refractory castables. Additive carbon material. Spherical asphalt binder can also play a role in increasing carbon, product temperature and resistance to erosion.

Spherical asphalt

Spherical asphalt is made from coal tar pitch which is processed by heating, spraying, cooling and molding. Put the test material asphalt into dissolved kettle for heating and dissolving. At the same time turn on the power electric lap and liquid asphalt is ejected from the nozzle, the air make it atomized into fine particles. Asphalt particles in the cooling tower come into semi-finished products which sent into the three million vibration screening filter from the cooling bottom to get the final spherical asphalt products.

Softening point: 110 ℃,
Coking value: 58%,
Ash: 0.3%,
Volatile matter: 57%
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Andalusite | Andalusite | Andalusite | Andalusite

Andalusite is generally columnar crystals, with cross-section close to the square shape. The shape of aggregate Andalusite is radially or granular, commonly known as chrysanthemum stone. Andalusite color can be pink, rose red, red-brown or gray, vitreous luster, medium cylindrical cleavage. Morse hardness of Andalusite: 6.5 to 7.5, proportion: 3.15 to 3.16. Heating to 1300 ℃, Andalusite will turn into mullite, which is one of the raw materials to produce advanced refractories.

Andalusite

After calcination, Andalusite can be made profiles that can be used for key parts of the stove, hot air tower, and then stir-fried, it can also be used for a variety of auxiliary casting and handling equipment, can also make the furnace facilities, high temperature aluminum silicate insulator, foundry mold fabrics.

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Flake Graphite | Flake Graphite | Flake Graphite

Flake graphite is widely used in metallurgical industry's advanced refractory materials and coatings. Such as magnesium carbon brick, crucible and so on. Military industrial pyrotechnics materials stabilizer, smelting industry desulfurization accelerator, light industry pencil lead, the electrical industry carbon brush, the battery industry electrode, fertilizer industry catalyst. Flake graphite after deep processing, but also can produce graphite milk, for lubricants, release agent, drawing agent, conductive coatings. It can also produce expanded graphite for flexible graphite products such as flexible graphite seals and flexible graphite composite materials.

Flake graphite

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Aluminum Hydroxide ｜Aluminum Hydroxide ｜Aluminum Hydroxide

Aluminum hydroxide, Al (OH) 3, reacts with acids to form salts and water and reacts with strong bases to form salts and water, therefore it is an amphoteric hydroxide. Due to a certain degree of acid, it can be called aluminic acid (H3AlO3). But actually reacts with the base to produce a tetrahydroxyaluminate ([Al (OH) 4] -). So it is usually regarded as a bauxite (HAlO2 · H2O). According to the usage, aluminum hydroxide can be industrial grade and pharmaceutical grade.

Aluminum hydroxide is one of most widely used inorganic flame retardant additives. Aluminum hydroxide can also for fire-retardant, prevent smoke, no droppings, no toxic gases, with wider range of applications.

Aluminum hydroxide

Application of Aluminum hydroxide:

Aluminum hydroxide can be used in Thermosetting plastics, thermoplastics, synthetic rubber, paint and building materials industries. Meanwhile, aluminum hydroxide is the basic raw material required for aluminum fluoride in aluminum industry.

	A2O3 ≥	Burning ≤	SiO2	Fe2O3	Na2O
AH-1	64.5	35	0.02	0.02	0.4
AH-2	64.0	35	0.04	0.03	0.5
AH-3	63.5	35	0.08	0.05	0.6

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Explosion-Proof Fiber | Explosion-Proof Fiber | Explosion-Proof Fiber

Use of Explosion-Proof Fiber:

Explosion-Proof Fiber is mixed with other refractory materials, after forming, baking, baking with temperature rising, and when the fiber reaches a certain temperature begins to soften, shrink, melt, and finally the formation of pores and carbonation. They form small vivo distribution network pores in construction, so the explosion fiber can open the passage of water vapor, reducing internal stress and prevent bursting.

Explosion-Proof Fiber

Applications of Explosion-Proof Fiber:

Bulk materials such as spreads, castable monolithic refractories.

Performance of Explosion-Proof Fiber:

1, Anti tensile, impact resistance, improve overall strength.

2, Hydrophobic, exhaust, anti-cracking, anti-burst.

3, Shorten the curing period, simplify heating process and improve the overall service life.

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Aluminum Powder | Aluminum Powder | Aluminum Powder

Metal aluminum powder is mainly used for magnesium carbon brick additives to prevent magnesium carbon brick being oxidized in the high temperature, so it is an antioxidant, which can be effective restrict graphite rapidly oxidized in Magnesium carbon brick. Because magnesium brick after bake is bonded by the resin carbon residue, once graphite being oxidized, the strength of the brick will be reduced, thermal shock stability is also poor, thus affecting the service lift of the converter and electric furnace.

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Al   99.5％    
Fe  ≤0.15%           
Si  ≤0.2%

Metal aluminum powder

Sodium Tripolyphosphate | Sodium Tripolyphosphate | Sodium Tripolyphosphate

Description of Sodium Tripolyphosphate:

Sodium tripolyphosphate is a white powder material with melting point 622 ℃, which is soluble in water with significant chelating capacity to calcium and magnesium and other metal ions, Sodium Tripolyphosphate can soften hard water to make suspension into solution. Features: slightly alkaline, non-corrosive, sodium tripolyphosphate is an inorganic surfactant, which has strong emulsification with lubricating oil and fat, bulk density is usually divided into a low density 0.35-0.5g / cm 3, medium density of 0.51-0.65g / cm 3, high density 0.66-0.9g / cm 3.

Sodium tripolyphosphate have two crystalline forms: type I (high temperature type) and type II (low temperature type), both with the same chemical properties, type I thermal stability and moisture difference is higher than that of type II, and the solubility, dissolution heat of hydration is also different between them.

Sodium Tripolyphosphate

Application of Sodium Tripolyphosphate: 

Sodium Tripolyphosphate can be used in many refractories such as bulk material, castables, Ramming mixes. It is reducing agent, glue solution, Flame retardants and binding agent in magnesia refractory.

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Metal Silica Fume | Metal Silica Fume | Metal Silica Fume

1. Industrial metal silica fume is extensively applied to refractory and powder metallurgy industry in order to enhance high-temperature resistance, wear resistance and inoxidizability. The product is comprehensively used for steel furnace, kiln and kiln furniture.

2. In the organ silicone chemical industry, industrial metal silica fume is the basic material of organ silicone polymer synthesis, such as the production of silicon monomer, silicone oil and silicone rubber preservative, increasing high-temperature resistance, electrical insulating property, anti-corrosion property, water resisting property and other characteristics of products.

metal silica fume

3. Monocrystalline silicon is made from industrial silica fume and then processed into silicon wafer which is the essential raw material of integrated circuit and electronic components.

4. In the metallurgy casting industry, as the additive of uniron-base alloy and alloying agent of silicon steel, industrial metal silica fume increases the hardenability of steel. Also, it can be used as reducing agent of some metals for new type ceramal and other products.

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Yellow Dextrin | Yellow Dextrin | Yellow Dextrin

There are usually three categories: white dextrin, yellow dextrin and British gum or Britain gum. The difference between them lies in the pretreatment of starch and heat conditions for different applications.

Yellow Dextrin

Yellow Dextrin Parameters:

Fineness (100 mesh pass) ≥98%
Acidity ≤40%
Moisture ≤10%
Solubility ≥95%
Adhesion ≥1.5kg / cm2

Yellow dextrin (industrial grade) is mainly used for raw materials for metal compounds such as adhesives, aluminides, oxides and other items of the bond, this kind of yellow dextrin is of ultra-high strength with relative Low cohesive force, at the same time, the price is relatively cheap, while the quality won’t discount.

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Hercynite | Hercynite | Hercynite

Hercynite Fused for Cement Kiln:

Compared with traditional brick spinel, magnesium oxide - aluminum ferrite spinel brick has excellent structure flexibility, low thermal expansion, low heat conductivity and good alkali salt erosion ability. Especially for large-scale rotary kiln (the maximum daily output 6 800t), the life of hercynite fused brick can be up to 17 to 18 months. After using, the brick Chemical and microstructural analysis results showed that even at extremely high volatile, large thermal mechanical stress and rotary kiln operating conditions, magnesia - hercynite brick erosion rate remains very low.

Hercynite

Indicators:
                            
Al2O3 54-58%
SiO2 ≤1.5%
Fe2O3 39-44%
CaO ≤0.5%
The physical properties of porosity% ≤5.0%
Bulk density g / cm3 ≥ 3.90
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Refractory Castable | Refractory Castable | Refractory Castable

According to binders, Refractory castable is divided into hydrsulic bonding , chemical bonding, cohesion binding refractory castable.

According to refractory aggregate, Refractory castable is divided into clay aggregate (Al2O3 30% ~ 45%), high alumina aggregate (Al2O3% 26ge; 45%), siliceous aggregates (SiO2% 26ge; 85%, Al2O3% 26lt; 10 %), alkaline aggregate (with magnesia, dolomite, etc.), special aggregate (carbon, carbides, spinel, zircon, nitrides, etc.) and insulation aggregate (perlite, vermiculite stone, ceramic, floating beads, light brick sand, porous clinker, alumina hollow ball,etc).

Refractory castable

Main Origin in China:
Gongyi City, Henan Province; Luoyang City, Henan Province; Chaohua Town, Xinmi City, Henan Province; Dengfeng City, Henan Province; Yangquan City, Shanxi Province; Zibo City, Shandong Province.
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High Aluminum Powder | High Aluminum Powder | High Aluminum Powder

Features and Application of High Aluminum Powder:

High aluminum powder is a basic raw material for the production of heat, wear and corrosion-resistant products such as high alumina refractories, high-strength ceramics, automobile spark plugs, advanced abrasive materials. High Aluminum Powder has a high melting point, good thermal stability, high hardness, good wear resistance, high mechanical strength, good electrical insulation, excellent corrosion resistance.

High Aluminum Powder:

High aluminum powder is widely used for stereotypes, not stereotypes refractories, refractory castable binder, abrasive wear, high purity refractory fibers, specialty ceramics, electronic ceramics, structural ceramic, stainless steel, mirror-polished granite and other decorative materials.

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Silicon Carbide | Silicon Carbide | Silicon Carbide | Silicon Carbide

Now China's industrial production silicon carbide is divided into black silicon carbide and green silicon carbide, Both are hexagonal crystals with specific gravity of 3.20 - 3.25, the hard silicon carbide is of 2840 ~ 3320kg / mm2.

1. Particles: Geometry with a specific shape within a range of sizes. Here, the size is generally between a millimeter to nanometer.
And particles not only refers to solid particles, as well as droplets, oil droplets and other liquid particles.
2. Hugh powder: Particles consists by a large number of different sizes.
3. Particle size: the size of the particles is called the size of the particles.
4. Particle size distribution: particles of different size and with a specific instrument approach reflects the percentage of the total powder.
There are 2 forms interval distribution and cumulative distribution.

silicon carbide

Interval distribution, also known as differential distribution or frequency distribution, which represents the percentage of a series of particle size range of particles. Cumulative distribution, also known as distribution points, which represents less than or greater than a certain percentage of the particle size.

 

Silicon carbide (SiC) is made from quartz sand, petroleum coke (or coal), wood (it need to add salt for the production of green silicon carbide) and other raw materials. Silicon carbide is also known as Moissanite.

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α Alumina Powder | α Alumina Powder | α Alumina Powder

Description of α Alumina Powder:

α Alumina Powder raw materials are high quality commercial alumina and aluminum hydroxide, which plus additive with low temperature calcination, then processed by advanced technology and grinding to get activated alumina powder, which is characterized by the big activity, fine grain size. α Alumina Powder is especially suitable for styling products and refractory casting material, plastic, repair materials, gunning material, coated materials such as monolithic refractories, refractory material to improve high temperature strength, improve the erosion resistance of materials .

α alumina powder has high chemical stability, high purity, big True specific gravity, good insulation, high mechanical strength, anti acid and alkali, wear resistance, impact resistance, etc.

Alumina Powder

Application of α Alumina Powder:

Alumina has a high melting point, good thermal stability, hardness, wear resistance, high mechanical strength, good electrical insulation, corrosion resistance and other characteristics, which is widely used for amorphous, monolithic refractories, refractory castable binder, abrasive wear, high purity refractory fibers, specialty ceramics, electronic ceramics, etc.
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Mullite | Mullite |Mullite |Mullite

Product Description of Mullite:

Mullite is collectively referred to minerals composed of a series of aluminum silicate minerals, which is the only stable binary compounds of Al2O3 - SiO2 system. So it is a rare mineral.

Application of Mullite:

Mullite can be employed in the field of refractories, ceramics, metallurgy, casting, electronics, with features of high temperature, high strength thermal conductivity, good energy-saving effect. Mullite is suitable for medium petroleum cracking furnace, metallurgy stove, ceramics roller kiln, tunnel kiln, porcelain drawer kiln, crucible furnace and all kinds of electric furnace as lining. Mullite can direct contact with the flame.

Mullite

Mullite Characteristics:

Mullite raw material is a high quality refractory with a uniform expansion, excellent thermal shock resistance, high softening point load, small high temperature creep, good hardness, good chemical resistance.

Mullite Solid Solution:

X-rays on natural and synthetic mullite, and found that there are three different cell axis ratio of mullite presence, namely alpha- mullite, beta and gamma- mullite.

Synthetic Mullite Categories:

There are many types of Synthetic mullite. By the method of synthesis, it can be sintering mullite and fused mullite; according to the chemical composition of the raw material, it can be low aluminum mullite, aluminum mullite, high alumina mullite and zircon mullite; according to the raw materials, it can be calcined kaolin (low aluminum), calcined kyanite (aluminum), natural mullite (high alumina) and high-purity mullite.

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α Alumina Powder | α Alumina Powder | α Alumina Powder

α Alumina Powder raw materials are high quality commercial alumina and aluminum hydroxide, which plus additive with low temperature calcination, then processed by advanced technology and grinding to get activated alumina powder, which is characterized by the big activity, fine grain size. α Alumina Powder is especially suitable for styling products and refractory casting material, plastic, repair materials, gunning material, coated materials such as monolithic refractories, refractory material to improve high temperature strength, improve the erosion resistance of materials .

α alumina powder has high chemical stability, high purity, big True specific gravity, good insulation, high mechanical strength, anti acid and alkali, wear resistance, impact resistance, etc.

α Alumina Powder

Application of α Alumina Powder:

Alumina has a high melting point, good thermal stability, hardness, wear resistance, high mechanical strength, good electrical insulation, corrosion resistance and other characteristics, which is widely used for amorphous, monolithic refractories, refractory castable binder, abrasive wear, high purity refractory fibers, specialty ceramics, electronic ceramics, etc.
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Alumina Hollow Ball | Alumina Hollow Ball | Alumina Hollow Ball

Alumina hollow ball is a new type of high temperature insulation material which is made from industrial aluminum treated by smelting in an electric furnace. The crystal form is a-Al2O3 micro crystals.

Alumina hollow ball can be made into various shpes with the highest temperature 1800 ℃, which is of high mechanical strength, and the volume density is only one-half of corundum products.

Alumina hollow ball

There are mixed grade alumina hollow ball and graded ball two types: mixed-level ball diameter is 0.2-5mm, graded ball diameters can be respectively 0.2-1mm, 1-2mm, 2-3mm, 3-5mm.
              
Application:

Alumina hollow balls are widely used in high temperature furnace and ultra high temperature furnaces such as the petrochemical industry gasifier reactor, carbon black industry, metallurgical industry and other high-temperature induction furnaces, etc.
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Kyanite | Kyanite | Kyanite | Kyanite |Kyanite

Kyanite is a new type refractory material, which is aluminous mineral with pale blue or cyan color, light gray. Hardness 5.5-7.0, specific gravity: 3.53-3.65.

Kyanite has Strong resistance to chemical corrosion, high mechanical strength and thermal shock, thermal expansion is not reversible. Kyanite is the main material for the production of amorphous materials and furnace top brick, phosphate unfired brick, mullite bricks, low creep brick.

Kyanite

Application of Kyanite:

Kyanite is Used to make excellent senior refractories, refractory mortar, cement and corrosion casting products, plastic and ramming mixes. Kyanite is also an expansion agent, especially for Al2O3.SiO2 refractory, due to high alumina bauxite and other impurities in the Fe2O3, TiO2, RO, R2O and other effects, and due to uneven uniform composition of ingredients, often caused by material shrinkage after burning Large, so the use of kyanite as a bulking agent can overcome the high temperature and cooling process in the contraction of cracks, peeling and thus affect the service life.

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High Alumina Cement | High Alumina Cement |High Alumina Cement

Aluminous cement (formerly known as high alumina cement) takes bauxite and lime as raw materials, formulated by a certain percentage, calcined, ground to a Aluminate material, also known as aluminate cement.

High Alumina Cement Fineness: 0.088 mm square hole sieve shall not exceed 10%
Setting time: Initial set no less than 40 minutes, the final setting not more than 10 hours.
Chemical composition: SiO2≤10%, Fe2O3≤3%.

Aluminous cement

Application of High Alumina Cement:

(1) Preparation of monolithic refractories.
(2) Preparation of gypsum alumina cements expansive cement, self-stress cement.
(3) Projects need rush to building, repair, anti-erosion and sulphate and winter construction.

Ladle refractory castable generally use CA-70 or CA-80 refractory cement as binder. In a small ladle, using refractory cement as binder can reduce costs about 90%. The main role of refractory cement is to provide the refractory castable construction strength and low strength at high temperatures. Because of Al2O3 and CaO forming CA6 and CA2 and other refractory minerals, it helps to improve its performance. However, the cement itself is with impurities and excessive formation of CA6,which is disadvantageous for its refractory castable. So we need to consider its properties regarding to the use amount.
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Heat-Resistant Stainless Steel Fibers | Heat-Resistant Stainless Steel Fibers

Heat-resistant stainless steel fibers adopt the latest metallurgical process - melt-quenching method, extracted from the heat resistant stainless steel melt. After adding refractory substrate  into the heat-resistant stainless steel fiber products, it can greatly improve the hot corrosion resistant structures, thermal cycling, impact resistance, heat resistance and thermal wear performance rating.

Heat-resistant stainless steel fiber added to the unshaped refractory material (castable, plasticity, ramming material) it will change the refractory internal stress distribution, to prevent the crack expansion, refractory brittle fracture mechanism into ductile fracture; Material performance has been significantly improved.

Heat-resistant stainless steel fibers

Advantages of Heat-Resistant Stainless Steel Fiber:

1. Cheap and short process;

2. Rapid quenching process gives steel fibers microcrystalline structure with high strength and toughness;

3. The cross-section of the fiber was irregular crescent-shaped, the surface is of natural roughness, and good matrix binding with other refractory;

4. It has a good high temperature strength and high temperature corrosion resistance. Heat-resistant stainless steel fiber reinforced refractory material effect: the biggest drawback of refractory is its brittle fracture.

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Hexametaphosphate | Hexametaphosphate | Hexametaphosphate |Hexametaphosphate

Description of Hexametaphosphate:

Hexametaphosphate Molar mass: 611.77 g · mol-1

Hexametaphosphate Appearance: white, odorless, crystalline powder

Hexametaphosphate Density: 2.484 g / cm3

Hexametaphosphate Melting point: 616 ° C (decomposition)

Hexametaphosphate Boiling point: 1500 ° C

Hexametaphosphate Solubility (water): Soluble

Hexametaphosphate Solubility (Organic solvents): Insoluble

Moisture absorption: strong, easily hydrolysis solution as orthophosphate in warm water, acid or Alkali solution.

Hexametaphosphate

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Chrome Oxide Green | Chrome Oxide Green | Chrome Oxide Green

Description of Chrome Oxide Green:

Chrome oxide green also known as chromium oxide, chromium oxide with molecular weight of 151.99. It is Hexagonal green powder with Density of 5.21g / cm3, Mohs hardness of 8.5 to 9, which is close to the corundum (Al2O3), second only to diamond, and more than quartz SiO2, topaz Al2 [SiO4] (F, OH) 2 and zircon ZrSiO4).

Chrome Oxide Green

Features and Application of Chrome Oxide Green:

The refractive index is 2.5 (cover rate is good), specific heat capacity (20 ℃) /0.17J/ (g · K). Insoluble in water, acid and organic solvents, slightly soluble in concentrated sodium hydroxide solution, soluble in hot sodium bromide solution, hot concentrated perchloric acid solution or boiling parathion mixed acid.

Chrome oxide green is very stable in light, air and corrosive gas (H2S, SO2, etc.), excellent weatherability. Chrome Oxide Green with Good thermal stability, melting point: 2265 ℃, boiling point: 3000 ℃, it is a high-quality refractory materials

Chromium oxide green is mainly used in metallurgy, paint, polishing, refractory materials and newly developed meltblown paint.

Chromium oxide green is generally added in the corundum or corundum spinel refractory material with small amount. It can significantly improve some of the properties of the material. Such as high temperature strength performance, Anti - slag erosion performance and Thermal shock stability and so on.

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Instant Powdered Sodium Silicate | Instant Powdered Sodium Silicate

Description of Instant Powdered Sodium Silicate:

Instant powdered sodium silicate, also known as sodium silicate, hydrous sodium silicate, which is white powdery material can be quickly dissolved in water. Instant powdered sodium silicate is a kind of special sodium silicate  in with good performance in cold, uniformity, convenient in use, transportation and storage.

Aplication of Instant Powdered Sodium Silicate:

Instant sodium silicate is mainly used as Building materials additive for power construction, such as lining clay material in chimney, boiler; also be used as furnace gunning castable, acid clay and other unshaped refractory binder; adhesive insulation materials for foundry industry, ceramic industry, industrial coatings and thickener in oil industry.

Instant powdered sodium silicate

1, metallurgical industry: amorphous refractory binder, furnace gunning binding agent, sand binder in the foundry industry.

2, chemical industry: Instant powdered sodium silicate used as flame retardant fillers, degreasing cleaning agent, rust inhibitor.

3, light industry: ceramic adhesives, floor adhesives, welding adhesive.

4, daily chemical industry: detergent builders, fillers in soap industry.

5, construction industry: Instant powdered sodium silicate used as a powder coating agent and fireproof materials, acid-proof cement additives, road repair enhancer.

6, oil industry: Magma sealant pulp sealant.

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High-Temperature Asphalt | High-Temperature Asphalt | High-Temperature Asphalt

Description of High-Temperature Asphalt:

High temperature asphalt has high fixed carbon, high toluene insolubles resin content, low ash, High-Temperature Asphalt is widely used in blast furnace iron ditch materials, blast furnace gunning, ramming castable materials and monolithic refractories, carbonaceous material additives. High-Temperature Asphalt can play a role of bonding and carbon increasing, improve the high temperature, anti-erosion ability of the product.

High-temperature asphalt (hard bitumen), ring and ball softening point of 95 ~ 120 ℃; Further, according to user requirements, we can produce a softening point of 120 ~ 250 ℃ special high-temperature asphalt.

High temperature asphalt

High-temperature asphalt: softening point 130-180 ℃, coking values 55-65%, ash content 0.2%, volatile matter 50-55%
High-Temperature Asphalt Modified bitumen: Softening point 105-120 ℃, coking values 55-60%, ash content 0.2%, volatile matter 50-55%
Asphalt temperature: Softening point 80-95 ℃, coking values 52-54%, ash content 0.2%, volatile matter 50-58%
Spherical asphalt: softening point of 110 ℃, coking value 58%, ash content 0.15%, volatile matter 57%
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