Raw Materials for Refractory:Calcined Bauxite with Low Price Made in China
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- Loading Port:
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- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 m.t./month
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Quick Details
| Place of Origin: | Shanxi, China (Mainland) | Shape: | Block | Material: | Alumina Block |
| SiO2 Content (%): | 5-19% | Al2O3 Content (%): | 75-89% | Refractoriness (Degree): | Common (1580°< Refractoriness< 1770°) |
| CrO Content (%): | None | SiC Content (%): | None | Model Number: | 78,80,83,85,86,87,88,89 |
| Brand Name: | Jialun | Fe2O3: | 2%max | K2O+Na2O: | 0.25-0.4% |
| CaO+MgO: | 0.4-0.6% | Bulk Density: | 2.8-3.30 |
Packaging & Delivery
| Packaging Details: | 25 kg pvc bag and 1 mt big bag |
| Delivery Detail: | within 10 days after receipt your advance payment |
Introduction of calcined bauxite
Calcined bauxite is one of the principal ore of aluminum.
Calcined bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .
Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85OC to 1600C) .this can removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 75% to 90%.
Specifications of Calcined bauxite
Grade | AL2O3 | SIO2 | FE2O3 | TIO2 | K2O+Na2O | CaO+MgO | Bulk density |
HX75 | 75min | ≤17 | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.70 |
HX80 | 80min | ≤12 | ≤3.0 | ≤4.0 | ≤0.3 | ≤0.5 | ≥2.80 |
HX85 | 85min | ≤8 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.00 |
HX86 | 86min | ≤7 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.10 |
HX87 | 87min | ≤6 | ≤2 | ≤4.0 | ≤0.3 | ≤0.5 | ≥3.20 |
HX88 | 88min | ≤5 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.25 |
HX90 | 90min | ≤3 | ≤1.8 | ≤4.0 | ≤0.25 | ≤0.5 | ≥3.3 |
Moisture(max) | 0.50% | ||||||
Usage of Calcined bauxite
1.Aluminium industry.
2.Precision casting.
3.Refractory industry.
4.Silicic acid aluminium 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.ceracmic industry,and chemical industry for making aluminium compounds
- Q: Does anyone know what kind of light fireproof materials are there?
- 二, 1, Gypsum plaster board With the building plaster as main raw material, gypsum plaster board is a kind of processed plate made by a special board for protective with an addition of additives and fibers as board core. Gypsum plaster board is characterized by light weight, sound insulation, heat insulation, strong processing performance and simple construction method. 2, Gypsum block Gypsum block is a kind of lightweight building gypsum product which is mainly made of building gypsum, and by adding water, stirring, casting and drying. During the process, , the fiber reinforced materials or light aggregates are allowed in, and the foaming agent can also be added. It has many advantages, such as sound insulation and fire prevention, convenient construction and so on. It is a kind of new and healthy wall material which produces low carbon, enhances environmental protection, and caters to the the times. 3, Fly ash brick is a new type of wall material, and bulk density is one of the main technical indexes. The weight of bulk density can be controlled according to the need of construction and adjustment of technical formula. The dry bulk density of the fly ash brick is about 1540 to 1640 kg / m 3, slightly lighter than the clay brick (1601800 kg /m 3). The flexural and compressive strength of fly ash brick is mainly determined by the production process, the formula and the hydrothermal synthesis reaction mode as well as the need of construction. According to the standards of architectural material industry (JC239 - 2001) released by People's Republic of China, the average value of the flexural strength is 2.5 ~ 6.2Mpa, compressive strength is between 10 ~ 30Mpa. I hope this will be helpful to you
- Q: What's the fire endurance of hollow brick?
- For hollow brick wall, it should be noted that outside are 200-thick coal gangue hollow brick wall on interior wall. Besides, the fire endurance should comform to GB50067-97 Fireproof code for garage, repair garage, parking lot design. 3), All joints of brick walls and concrete wall column should reserve rebar tie. Masonry mortar in internal and external walls should be full. Wall masonry should be up to bottom of beam slab and filled tightly with 1:3 cement mortar.
- Q: How to classify the grade of wall fireproof and thermal inuslation matertial?
- To sum up three versions of GB8624 (1997, 2006, 2011), fire?rating of external wall thermal insulation can be basically divided into: A1, A2, B1, B2, B3 and other levels. Specific division has many technical indicators to judge. It can't be said for a moment. It is very professional and technical. For details, please contact Qingdao Shanfang Instrument. They specialized in tester of fire?rating of external wall thermal insulation materials.
- Q: What high-molecular polymers can be used as fire-resistant material binder?
- Lignin is the least expensive.
- Q: Which one is the best refractory material?
- Resin bonded refractory is mainly abot aluminum magnesium carbon, and carbonaceous etc. Thermoplastic resins need to add the coagulant (Uto), ageing mixture for a period of time, so the production cycle is long. Hot hard resin is relatively not so complex, but it’s not as good as thermoplastic resins in thermoplastic binding.
- Q: Can polystyrene foam color steel plate be used as decorative fireproofing material ?
- No, only non-combustible product can prevent fire. Most polystyrene foam boards are flammable which cannot prevent fire. Polyphenyl can only retard flame, highest fire?retardant fire?rating being B1 level. Under the same conditions, fireproof performance of polystyrene foam board will be better because most extruded sheets are made by recycling materials and contain much more impurities which will affect flame resisting property. The second reason is that high temperature in extruded sheet manufacturing technique will decompose part of flame retardants. For B1 level extruded sheet, it is difficult to reach 30 burning oxygen index, while for B2 level, it is hard to reach 32. So polyphenyl board is safer.
- Q: What can red stone refractory do?
- Classification is divided into ordinary and special refractories two major categories. Ordinary refractories are divided into acidic, refractory, neutral and alkaline according to their chemical characteristics. According to the special refractory material consists of high temperature oxide, refractory compounds and high-temperature composite materials in addition, in accordance with the fire intensity can be divided into ordinary refractory products (1580 to 1770 DEG C), advanced refractory products (1770 to 2000 DEG C) and special refractory products (more than 2000 DEG C). According to the product shape can be divided into block (standard brick, special-shaped brick), special shape (crucible, sagger, pipes, etc.) (fibrous silicate aluminum, zirconium oxide and boron carbide material) and indefinite shape (refractory clay, pouring material and ramming material etc.). According to the sintering process, the products are divided into sintered products, casting products and fused blowing products. The main varieties of in general and special refractory materials, common varieties are mainly the following: acid refractories have a larger amount of silica brick and clay. Brick is siliceous products containing more than 93% SiO2, the use of raw materials with silica, silica and other waste. The silica acid slag erosion ability is strong, but vulnerable to the erosion of basic slag, its softening temperature is very high, close to the fire, the volume does not shrink after repeated burning, or even a slight swelling, but poor thermal shock resistance. The brick is mainly used for thermal equipment of glass furnace, coke oven, acid furnace etc.. Containing 30% ~ 46% alumina clay brick, with refractory clay as the main raw material, refractory 1580 degrees to 1770 degrees, good thermal shock resistance, which belongs to the weak acid refractory material, resistance to acid slag, widely used, is the largest production of a kind of refractory material.
- Q: Who knows the texture of fire-proof wooden door material?
- The so-called fire doors are only posted a layer of fireproof material. Door selection still depends on the timber inside. The simplest way is to see the weight value, fireproof material layer, and they are generally paint-free doors. With fireproofing function.. Hope you adopt.
- Q: What are the material requirements of class A fire resistant door ?
- Grade A fire resistance steel door, namely steel wooden doors or steel-wooden composite door, including reinforced wooden door, is usually used in indoor. In fact, it is the door with steel bar inside and density board or blockboard outside.
- Q: What is refractory?
- Refractory is an inorganic nonmetallic material with minimum refractoriness of 1580 ℃. Now, refractory is not defined merely by judging that whether its refractoriness is at above 1580 ℃. Currently, refractory, an inorganic nonmetallic material, are widely used in metallurgy, ceramics, power and other industrial fields.
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Raw Materials for Refractory:Calcined Bauxite with Low Price Made in China
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000 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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