85% Alumina 120 Mesh Calcined Bauxite with Low Price

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Tianjin
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25 m.t.
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30000 m.t./month

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Product Description:

85% Alumina 120 Mesh Calcined Bauxite with Low Price

 

Specifications

1.    We directly supply calcined bauxite 

2.    Al2O3:70%/75%/80%/85%/86%/88%/90% 

3.    Size:0-1-3-5-8-10/200mesh/325mesh/400mesh/500mesh

 

Size:

Lumps /Grains:0-1mm,1-3mm,3-5mm,5-8mm /Powders:100mesh, 200mesh,325mesh

 

Product Description:

Bauxite, alumina or bauxite miner , main ingredients are aluminum oxide, hydrate alumina containing impurities,

is an earthy mineral.White or grey, brown yellow or light red by iron.From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3, opaque, very brittle.

Very difficult to melt.Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution.Mainly used for aluminium, refractory material.

 

Item

SNR90

SNR88

SNR87

SNR85

SNR80

Al2O3% (min)

90 min

88 min

87 min

85 min

80 min

SiO2% (max)

3.5

5.5

7

8

10

Fe2O3% (max)

1.5

1.6

1.8

2

2.5

TiO2% (max)

3.8

4

4

4

4

CaO+MgO % (max)

0.35

0.4

0.4

0.4

0.5

K2O+ Na2O % (max)

0.35

0.4

0.4

0.4

0.5

Bulk  density(gm/cc) (min)

3.35

3.25

3.2

3.1

2.9

Moisture  (max)

0.3

0.3

0.3

0.4

         0.5

 

Item name

RKB-85

RKB-86

RKB-87

RKB-88

RKB-90

Al2O3 %  min

85

86

87

88

90

Fe2O3 % max

2.0

1.8

1.8

1.8

1.6

TiO2% (max)

4.0

3.8

3.8

3.8

3.8

CaO+MgO % (max)

0.3

0.25

0.25

0.25

0.25

K2O+ Na2O % (max)

0.5

0.45

0.45

0.45

0.45

Bulk density(gm/cc) (min)

3.10

3.15

3.25

3.30

3.40

Moisture  (max)

0.5

0.5

0.5

0.5

0.5

SiO2% (max)

9.0

8.0

7.0

6.0

4.0

Shipment

Jumbo

Jumbo

Jumbo

Jumbo

Jumbo

Package

By sea

By sea

By sea

By sea

By sea


Calcined Bauxite Grade:

Shaft Kiln Bauxite

Rotarty Kiln Bauxite

Round Kiln Bauxite

 

Packaging & Delivery

Packaging Details: In bulk or in 1-1.25mr bag

 

Product Pictures:

85% Alumina 120 Mesh Calcined Bauxite with Low Price85% Alumina 120 Mesh Calcined Bauxite with Low Price

85% Alumina 120 Mesh Calcined Bauxite with Low Price

85% Alumina 120 Mesh Calcined Bauxite with Low Price85% Alumina 120 Mesh Calcined Bauxite with Low Price

 

Our Service:

1. Your inquiry related to our products or prices will be replied in 24hours.

2. Manufacturer with large capacity, ensure the fast production cycle after confirmed the order.

3. Our professional technicians will answer your entire enquiry in patient.

4. To meet the refractory solutions, we can serve as your instructions.

5. Protection of sales area and private information for our entire customer.

 

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Q:What is the fire endurance of ceramsite concrete blocks?
The fire endurance of 240mm thick ceramsite concrete blocks is 2.9 hours. It is made by adding pottery into fine aggregate, using cement as binding material, by mechanical mixing, molding machinery and natural protection. Ceramsite building blocks are used as wall material, which can reduce workers' labour intensity. It saves work and material. There is no empty drum during rendering. It is not easy to produce fissure. It has sound insulation, good thermal insulation performance, and is convenient to decorate. Nails, expaned setscrew and no wood anvil can be directly hit into wall. Moreover, It has high firmness.
Q:How many kilns using refractories are needed? What are the furnaces respectively?
Kiln and five hundred-degree centigrade thermal equipment need to use refractories, glass furnaces, electric arc furnaces, mixer, cement rotary kiln, open hearth furnace and limestone kiln; in fact, when the temperature is more than four, the mesh belt furnace, blast furnace, cupola oven, stove, pushing plate kiln, furnace, heat treatment furnace, roller kiln, down draft kiln, ladle, coke, shuttle kiln,etc.
Q:For refractory, why is it necessary to store the first mixing materials for some time under proper moisture and temperature?
It is mainly to remove gas form chemical reactions in the pug, give full play to plasticity and binding properties of combined, and store unburned brick whose cememting agent is phosphoric acid or aluminium phosphate for some time under proper moisture and temperature. For example, to avoid the formed bricks in the initial stage of drying and firing form cracking due to hydration of calcium oxide. Mixing materials is to store the first mixing materials for some time under proper moisture and temperature in order to improve the evenness and moldability of pud, such as making the distribution of combined clay and water more even. The length of storing chiefly depends on the process requirements and the characteristics of blanks. For the producing pug of high temperature kiln furnitures, the storing time is longer. The function of storing mxing materials varies with different natures of blanks. For honeycomb ceramics, it is to fully digest calcium oxide in blanks. For storing magnesia brick blanks containing much calcium oxide, it should be stored for some time in proper humidity and temperature.
Q:What are the specific steps of stirring the steel ladle castable?
Steps are as follows. 1 Compulsory mixer is used to stir the castable and bags, rope and other debris can not mix in the castable when stirred. 2, Castable should be unpacked on the scene. Stirred volume depends on the capacity of the mixer. Castable should be accurately measured and put into a blender. 3 The process of first dry mixing and then wet mixing is adopted. After the castable is added to the mixer, it is dryly mixed for 2 minutes, add about 5.2 to 5.5 percent of water and continue to add water while stirring. Water that is 80% of the total should be added, and then decide whether to continue to add or not depending on the consistence (noting that the water must be clean water and sewage can not be used). Then it is wetly mixed for 4 minutes and stirred for not less than 6 minutes at one time, until castable is even. In general, the bottom is slightly dry and the wall of the ladle is slightly dilute (the amount of water is only for reference). 4, The amount of water and mixing time should be controlled strictly when stirred to ensure that the needs of the consistency are met. If castable is too thin, it will seriously affect the quality of the material. The stirred volume, stirring time and water that is added should be consistent and they can not suddenly be thick or suddenly be thin. If the consistency does not meet the requirements, the castable should be put back to the mixer and stirred with appropriate water or dry materials. 5, It should be stirred evenly and casting should finish in 20 minutes, in order to avoid sclerosis, affecting structural strength of ladle lining 6, After each completion of construction, varieties of castable should be changed and the mixer should be cleaned 7, Stirring can stop in halfway. If the mixer breaks down and it can be repaired in a short time, some of the materials have to be removed before the machine is opened. If the machine can be repaired on time, castable refractory should all be removed.
Q:what are the types of piping insulation material fire rating?
There are two grades: 1, the organic material: Grade B Grade B1 hard combustion (fire retardant) 2, inorganic materials: class A no burning it is divided into three levels, attributed to the types of materials!
Q:What is the function of refractory in ceramics?
Refractory is used as materials of kiln,sagger and kiln car for ceramic sintering. Its refractoriness is higher than ceramics, and the essential material and tool for ceramic sintering.
Q:How about the prospect of refractory material?
is developing well. Many plants are required t o use fireproofing materials.
Q:What kind of refractory decorative board has good quality?
The unique design and personalized style of well-known brand "transit" rank highest in the field of domestic refractory slab. It is one of the largest manufacturers of high pressure decorating refractory slab in China. The production base covers an area of 40,000 square meters and the annual output is 4 million. It passes the test of Quality Supervision and Inspection Center of National Fire Protection Building Material and ISO9002 certification. The products pass international standards such as 4586, the United States NEMA and so on.
Q:How to apply the alumina powder on refractories?
The most common one in use is the refractory bricks.
Q:Which kind of refractory does insulation board belong to ?

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