Factory Directly Calcined Bauxite with Low Price From China !!!

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
6000 m.t./month

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Product Description:

factory directly 85% al2o3 1-3mm calcined bauxite with low price

 

  Chemicals :  

 

   Al2O3%  

CaO %

   Fe2O3%

refractoriness

bulk density 

>88

<0.4< span="">

<1.5< span="">

>1790

>3.15

>85

<0.6< span="">

<1.8< span="">

>1790

>3.10

>80

<0.8< span="">

<2.0< span="">

>1790

>3.0

70-80

<0.8< span="">

<3.0< span="">

>1790

>2.8

60-70

<0.8< span="">

<3.0< span="">

>1790

>2.65

50-60

<0.8< span="">

<3.0< span="">

>1770

>2.45

 

 

 

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.


Product use:


1.  aluminium industry.


2 . precision casting. 

 

3. for refractory products.


4.  aluminum silicate refractory fiber.

 

5. with magnesia and bauxite clinker as raw material, add appropriate binder, used for pouring ladle whole ladle lining has particularly good effects.


6. manufacture alumina cement, abrasive materials, ceramic industry and chemical industry of aluminum compounds


Factory Directly Calcined Bauxite with Low Price From China  !!!

Factory Directly Calcined Bauxite with Low Price From China  !!!

Factory Directly Calcined Bauxite with Low Price From China  !!!

Factory Directly Calcined Bauxite with Low Price From China  !!!

Factory Directly Calcined Bauxite with Low Price From China  !!!


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Q:What is coke? What is the use?
In addition to coke for iron and non-ferrous metal smelting (metallurgical coke), but also for casting, chemical, calcium carbide and iron alloy, its quality requirements vary. Such as foundry coke, generally require large size, low porosity, high fixed carbon and low sulfur; chemical gasification, strict requirements for strength. But requires good response, high ash melting point; calcium carbide and coke production requirements to improve the fixed carbon content.
Q:Effect of coal fineness on coke
In coking, the caking property is not good and the coke quality is reduced. Therefore, from the perspective of the uniformity of coal, coal fineness of some good. From the operation point of view, the greater the fineness of coal coal bulk density is lower, the production capacity of coke oven is low, into the coke oven, fine coal powder easily by gas is brought out, and easy blockage of ascending pipe, gas collector, affect the normal production of the coke oven, and the set of tar in the trachea increased, the effect of recovery operation. Therefore, from the production point of view, the fineness of coal should not be too large. Bulk coal in the top of the coke oven, coal crushing fineness of the general control in less than 3mm component in the range of 73~83%. Tamping coking, generally about 90%. In this range, the fineness of pulverized coal can meet the requirements of coke quality and coke oven operation. The small coal crushing will reduce the adhesion and the bulk density of coal, so as to reduce the coke quality.
Q:The specifications for coke used in stainless steel smelting are as follows
Three metallurgical coke: fixed carbon 83-84.5%; calorific value 6500cal/kg; ash < 15%; volatile < 1.9%; all 6% "1%" water; sulfur;Maybe not, I'll give you a web site, find it yourself
Q:How long should it be to store coke in the open air
The ground is flat, so it is convenient to transport.In addition, if it can be stored indoors, try not to open. For shelter.
Q:Method for removing coke from nonstick pan bottom
After high temperature sintering, and carbonization of things, glued to the pot, often with chemical methods.The most effective way to do this is by hand:
Q:Coke is how to make it? What is the use?
Coke production has prepared the material into the coal charging car from coal tower, were sent to the furnace chamber. The gas produced by the dry distillation is sent to the chemical product recovery workshop for processing. After a coking period (from charging to pushing the required time is generally 14 to 18 hours, depending on the carbonization chamber and the width), a pusher will mature by refining coke coke machine into the coke car; coke quenching, coke is discharged into the cold coke; then screening and storage (Figure 4).The coking plant is generally composed of two coke ovens. The two coke ovens are arranged on the same central line, and a coal tower is arranged in the middle. A furnace with coke oven machinery -- corresponding charging car and coke machine, machine coke, coke quenching car and motor vehicle; also equipped with a set of facilities including coke quenching, coke quenching tower, coke quenching pump, coke powder and coke powder sedimentation tank grab, arranged in the end furnace group. The center of the coke quenching tower is not less than 40 meters from the center of the carbonization chamber. If dry coke quenching, coke oven station. The coking plant is also equipped with the necessary piping and reversing system.
Q:The chemical composition of coke is m10.m25
Abrasion resistance refers to the ability of coke coke can resist friction without generating surface of glass forming debris or powder, by the M10 value. The effect of the crack of coke crushing strength, M40 value, the influence of coke pore structure of abrasion strength M10 value determination method of.M40 and M10 was more in China the migon drum test in Germany. As shown in table 31-1.After the completion of the test, the sieve with the pore diameter of 40mm and 10mm screening, greater than the percentage of 40mm particle size is M40, less than 10mm of the particle size of the M10 value. The intensity of the provisions of China Metallurgical Coke indicators are shown in table 31-2.
Q:The total amount of heat released by the fully burnt 200g coke is 60% by the mass of 10kg water absorption [q coke =3.0 * 107J/kg, C water =4.2 * 103J/ (kg = C)
At a standard atmospheric pressure, the boiling point is 100 DEG C, the temperature of the water rises to a temperature of 100 DEG C, and the temperature will not change,So the water temperature can be increased to 100;Answer: (1) the heat absorbed by water is 3.6 * 106J;(2) after absorbing heat, the temperature of the water will rise to about 100 degrees centigrade
Q:The difference between coke and coal
This is the nature of coal from the formation of coal is coal, and coal deep-processing products
Q:What is cokeWhat applications are, what is the fire of Malachite copper
Coke is a kind of reducing agent (C), under the heating conditions and some of the oxidation reduction reaction, can restore some important minerals, such as steel mills, etc..

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