Refractory Raw Materials-Silicon Fume SF-97

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
50 m.t.
Supply Capability:
5000 m.t./month

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Product Description:

CMAX Brand Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys.It consists primarily of amorphous silicon dioxide (SiO2),its average granule diameter is 0.15~0.20 µm,specific surface area is 15000~20000 m2/kg.

1.      Very low permeability to chloride and water intrusion.

2.      Extremely high electrical resistivity.

3.      Increased abrasion resistance on floors,highways,marin structures.

4.      Superior resistance to chemical attack from chlorides,acids,sulfates.

 

Grey Densified and undensified Silica fume for cement

Analysis

Result

SF85

SF88

SF90

SF92

SF94

SF96

SF97

SF98

SiO2(%)(min.)

85.05

88.05

99.05

92.05

94.05

96.05

97.5

98.5

Fe2O3 (%)

0.78

0.44

0.21

0.25

0.20

0.20

0.10

0.20

Al2O3 (%)

0.29

0.20

0.21

0.25

0.20

0.20

0.20

0.20

CaO (%)

0.39

0.30

0.36

0.30

0.30

0.30

0.30

0.30

K2O+ Na2O (%)

0.29

0.24

0.22

0.20

0.20

0.20

0.20

0.20

Moisture (%)

3.05

2.55

2.05

2.05

1.85

1.25

1.00

1.00

Loss on Ignition (L.O.I) @975OC (%)

 

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Q:What are the applications of refractory in petroleum?
Petroleum industrial furnace has many varieties. Generally, it includes tubular with complex structure, whose use temperature is generally 500 to 600 degrees centigrade, sometimes may be 800 degrees centigrade. Petroleum gas contains hydrogen sulfide and solid particulate matter; first correct the answer of the first floor: It is not used in petroleum industry. As shown in the left picture, it is tubular heating furnace, appilied to metallurgical industry. Lined with lightweight insulation and wear-resistant layers, and resistant to wear and corrosion: 1; & nbsp, but the using temperature is not high; it is a thermal equipment in the oil refining process. High alumina refractory castable used for refractory layer. It is an important equipment of petroleum boiling catalysis and dissociation. You can choose light refractory bricks or refractory castables; as shown in the right picture, it is catalytic cracking unit, and can bear pressure. Note; & nbsp: // f; & nbsp.hiphotos, fire-resistant plastic or refractory ramming mass has chemical corrosion and wear effect on lining; & nbsp, less than 1,350 degrees centigrade. The yse temperatures is up to 1,100 degrees centigrade.
Q:The following statement is correct: artificial corundum has a high melting point and can be used as a high grade refractory material. The main component is silica dioxide
1. corundum is the main component of alumina. 2. agate is the main component of silica. 3. is right. 4. glass is silicate. 5. solar cells are made from monocrystalline silicon. So 3.5 correct, choose D.
Q:How is the development of Xinmi refractories industry? What's its advantages and disadvantages?
The advantages are largest scale, top production amout in the country, accounting for one-third of the national market, having technology, strength and the market. The disadvantages are the lack of mineral resources, serious environmental pollution,
Q:Refractory material, refractory brick
High alumina brick is commonly used in high aluminum, LZ-75, LZ-65 and LZ-55, as well as high alumina brick for blast furnace, high alumina brick for hot blast furnace, and low creep high alumina brick
Q:how about the performance of aluminum silicate fire proof thermal insulation?
aluminum silicate refractory fiber board has following characteristics:1. the structure is more even than natural wood. it avoids rot, moth-eaten and other problems, 2. fiber board has small expansion and contraction, which is easy to be processed. 3. its smooth surface is easy to paste a variety of finishings and you can make furniture more beautiful. Decorative wood-based panel is to embellish their homes. I hope it is useful to you!
Q:What is refractory material?
Q:Why the refractories should be waterproof and wetproof
The binding agent of many raw materials is water-soluble. It will be useless when meeting water.
Q:which kind of fire bulkhead is better?
I think fire bulkhead is good, fire bulkhead also known as non-combustible fire retardance board, and it's made by various incombustible material after the scientific pressing, and has good flame resisting properties, it's non-combustible time can reach over 3 hours, high mechanical strength,it has characteristics of non-explosive, water and oil resistance, good chemical corrosion resistance and non-toxic.
Q:Who can tell me what is neutral refractory?
Neutral refractories refer to the refractory materials which will not react greatly with both acidic and basic slag at high tempreratures. Such as carbon refractories and chromite refractories. The main components include carbon, silicon carbide, aluminum oxide, chromium oxide and other trivalent oxides, such as carbon refractories and chrome refractories, etc. Strictly speaking, neutral refractories refer only to the carbonaceous refractories, including carbon brick and graphite silicon carbide products, etc.
Q:What is the function of refractory material?
Refractory is a basic material in the field of high temperature technology. Generally, the refractory is used as structural material or lining to resist high temperature in various thermal equipment and high temperature container. In the iron and steel industry and metallurgy industry, coke ovens are mainly composed of refractory materials. Various refractories that meet the requirements are essential in blast furnace for ironmaking, hot stove, all kinds of steel-making furnaces, soaking furnace and heating furnace. Not only the die casting for molten steel needs lots of refractory materials, but also the continuous casting needs some high-quality refractory materials. Without high-quality refractory materials, external refining is also not impossible to achieve. Statistics show that the steel industry is the sector that needs the most refractory. Pyrometallurgy and thermal processing of ferrous metal also needs refractories. All high-temperature furnaces or lining in construction materials industry or other high temperature industries that produce silicate products such as glass industry, cement industry, and ceramics industry must be constructed with refractory materials. All kinds of roasting funaces, sintering funaces, heating furnaces, boilers, flues, chimneys and protective layers in chemical, power and machinery manufacturing industry need refractories. In short, when some kind of structures, devices, equipments or vessels are used under high temperature, they all should utilize refractory to resist the high temperature because those materials will deform, soften and fuse or will be eroded, scoured or broken due to the physical, chemical, mechanical effects, which may stop the operation, affect the production, contaminate processed objects and impact the quality of products.

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