88% Calcined Bauxite - Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Product Description
Mingyue Bauxite and Calcined Bauxite:
Mingyue Bauxite, ie. bauxite ore, whose main content is Aluminium oxide with, who is department of hydrated
alumina containing impurities in appearance of earthy mineral;
Mingyue Calcined Bauxite is burnt bauxite, who is used for producing the existing uneven materin in nature --
alumina and aluminium. The purpose of calcining bauxite is to remove crystal water and improve the content of alumina.
Mingyue Bauxite Secification:
Al2O3 | Fe2O3 | TiO2 | K2O+Na2O | CaO+MgO | Bulk density |
≥65 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.6 |
≥75 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.7 |
≥80 | ≤2.5 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.8 |
≥85 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.0 |
≥86 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.1 |
≥87 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.2 |
≥88 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 |
Mingyue Refractory Bauxite Level:
Level | Chemical Composition (%) | Refractoriness (℃) | Bulk Density (g/cm3) | ||
Al2O3 | CaO | Fe2O3 | |||
superfine | >85 | <0.6 | <1.4.0 | >1790 | >3.6 |
first grade | >80 | <0.6 | <3.0 | >1790 | >3.0 |
second grade+1 | 70~80 | <0.8 | <3.0 | >1790 | >2.8 |
sencond grade | 60~70 | <0.8 | <3.0 | >1770 | >2.65 |
third grade | 50~60 | <0.8 | <2.5 | >1770 | >2.55 |
Product Uses
Mingyue Bauxite and Calcined Bauxite:
1. Aluminum industry;
2. Precision casting;
3. Refractory industry;
4. Silica acid aluminum firefibre;
5. Mixed with magnesium oxide, it can be an nice bonding agent, especially for pouring entire steel teeming ladle lining;
6. Manufacture bauxite cement, grinding abrasives;
7. Ceramic industry, and chemical industry for making aluminium compounds.
- Q:How to make the service life of refractory materials longer?
- Take acid resistant refractory materials as example: the atmosphere should be acidic atmosphere, if used in an environment whose temperature is 1900℃, it would exacerbate the loss of refractory materials, so don’t use overloaded. Second, select the appropriate refractory materials according to the environment. For example, if its operating temperature is 1800℃, generally speaking, the normal use of it according to the instruction of refractory materials would be fine.
- Q:What things and cement mixed can act as refractory?
- This has a lot. I suggest you can check monolithic refractories.
- Q:What dose the fireproof and thermal insulation material include?
- Currently the non-combustible insulation materials for external insulation system mainly are foam insulation board, composite cement foam insulation board, aerated concrete panels, rock wool board (strip), and inorganic insulation materials. 1. foam insulation board refers to foam ceramic insulation panels whose raw material is inorganic ceramic which is calcinated at high temperature with abbreviation of ceramic insulation board 2.Composite cement foam insulation board is a hydrophobic lightweight closed-cell insulation board whose main materials are cement, fly Ash, and silica fume which has been foamed, cured and cut. 3. aerated concrete panel is a lightweight concrete panel which has been autoclaved with lightweight materials, siliceous material and gas former as its raw materials. 4. rock wool panel, with natural igneous rock wool as its main raw material, is a cotton which is melted in high temperature by centrifugation and is pasted by thermosetting resin.
- Q:What are the refractory materials above 1000℃
- I have no idea what field you are in, and I am skillful at making refractory materials, because this is my job. You can send me an email informing your purpose, here is my email address .
- Q:What is the upper temperature limit for refractory materials?
- Different materials are different. In the professional field, there is a triangulation cone softening point experiment as a reference for using the upper temperature limit.
- Q:Refractory material, refractory brick
- 1, according to the degree of refractoriness:Ordinary refractory material: 1580 ~ 1770 DEG CAdvanced refractory material: 1770 ~ 2000 DEG CSuperfine refractory material: >2000 DEG C2, depending on the shape and size of the product:Standard type: 230mm * 113mm * 65mm;No more than 4 measurements, (size ratio) Max:Min<4:1;Profile: no more than 2 concave, (size ratio) Max:Min<6:1;Or an acute angle of 50~70 degrees;Specific type: (size ratio) Max:Min<8:1;Or not more than 4 or a sharp angle; 30 ~ 50 degrees;Special products: crucibles, vessels, tubes, etc.3, according to manufacturing methods, refractory materials can be divided into:Fired products, unfired products, unshaped refractories4. classification according to the chemical properties of materials:Acid refractory material, neutral refractory material, basic refractory material
- Q:Does anyone know what is the use of waste refractory materials?
- 1.Waste refractory bricks can be reused to make the refractory bricks after being crushed by crusher, but the price is not very high. The purchasing price of refractory plant is ?60/ton. Because the refractory material has been calcinated for two times, it becomes easier to make bricks expansion coefficient with waste refractory bricks, but too much is inadvisable. If too much, the refractory materials would have a bad combination, which will give rise to loose bricks and incomplete corners. Nowadays, ordinary refractory plants would purchase waste refractory bricks to produce bricks, but better plants wouldn’t do this.
- Q:What are the common refractory insulation cotton material?
- Fire resistant thermal insulation material mainly refers to inorganic thermal insulation material and compround thermal insulation material. According to the shape can be divided into: Fibrous finishes, slag wool, rock wool, glass wool, aluminum silicate cotton. ceramic fiber, micro pile of diatomite, calcium silicate, expanded perlite, expanded vermiculite, aerated concrete etc., foam like bubble glass, volcanic ash glass, foam clay, foaming concrete, paste powder polystyrene particles insulation slurry Their common characteristics is fire resistant, applicable for buildings that have high requirement for fire resisitance level. Calcium silicate, aluminum silicate, asbestos, etc. can also be used for thermal insulation of high temperature heat transfer pipe. I hope my answer can help you
- Q:What are the chemical composition of refractory cement?
- Calcium aluminate prepared by calcining as the main component. Aluminate cement takes bauxite and limestone as raw materials, alumina content of about 50% as the clinker. And it is a hydraulic cementing material made by grinding. Refractory cement is also known as aluminate cement.
- Q:What are the disadvantages of the refractory industry?
- The rapid development of continuous casting technology allows Hua Heng refractories to be improved in variety and quality. The development of refractory for continuous casting has a significant impact on the production of continuous casting and quality of continuous casting billet. Constructing and putting Baosteel into action has greatly pushed the improvement of the refractory technology. Continuous casting refractory is an important part of the continuous casting machine. In addition to the general characteristics of refractories, it is also required functions that can purify molten steel, improve the quality of steel, stabilize temperature and composition of the molten steel, control and regulate the molten steel flow. Therefore, it is known as functional refractories. Continuous casting Refractories include: (1) ladle refractory - ladle lining, permanent lining and ventilation components; (2) tundish refractories - permanent lining, coating, insulating plates, clad etc; (3 ) functional refractories - long nozzle for non-oxidizing casting, submerged nozzle, monolithic stopper, sliding gate; (4) ceramic purifier for purifying molten , slag dam, alkaline paint and horizontal separating ring and gate board for continuous casting.
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88% Calcined Bauxite - Raw Materials for Refractory
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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