$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 1$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 2$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 3$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 4$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 5$
$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 6$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 1$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 2$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 3$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 4$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 5$

$Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China System 6$

Raw Materials for Refractory:High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 11 m.t.

Supply Capability:: 10000000 m.t./month

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Raw Materials for Refractory:Low Impurity High Alumina Calcined Bauxite in Bulk of CNBM in China

1.Structure of Calcined Bauxite Description

Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.

2.Main Features of the 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 removes moisture there. By increasing the alumina content,compared to an alumina content of about 57%to 58% in raw bauxite, calcined bauxite has an alumina content of 84%to88%.The heating is carried out in rotary kilns.

3.Main usage of the Calcined Bauxite

(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc.
(2) precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
(3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780, chemical stability strong, and good physical properties.

4. Calcined Bauxite Images

$High Quality Bauxite High Alumina Refractory Brick Dry Pressed Block of CNBM in China$

5. Calcined Bauxite Specification

BRAND INDEX	High Alumina Brick for BF			Fire Clay Brick for BF
BRAND INDEX	GL-65	GL-55	GL-48	ZGN-42	GN-42
Al₂O₃, % ≥	65	55	48	42	42
Fe₂O₃, %, ≤	2.0	2.0	2.0	1.6	1.7
AP % ≤	19	19	18	15	16
Refractoriness °C ≥	1790	1770	1750	1750	1750
PLC %	0~-0.2	0~-0.2	0~-0.2	0~-0.2	0~-0.3
PLC %	1500°C x 2h		1450°C x 2h
CCS MPa ≥	58.8	58.8	49	58.8	49
0.2MPa RUL °C ≥	1500	1480	1450	1450	1430

6.FAQ of Calcined Bauxite

1). Q: Are you a factory or trading company?

A: We are a factory.

2). Q: Where is your factory located? How can I visit there?

A: Our factory is located in ShanXi, HeNan, China. You are warmly welcomed to visit us!

3). Q: How can I get some samples?

A: Please connect me for samples

4). Q: Can the price be cheaper?

A: Of course, you will be offered a good discount for big amount.

Q:Preparation of refractory clay: Is it to make refractories? Add some andalusite to the refractory mortar will improve the effect.

Q:Which brand of thermal insulating refractory is good?: Brands of thermal insulating refractory: 1, Armaflex(German brand). Manufacturer: Armacell thermal insulation materials (Guangzhou) Co., Ltd, Armacell thermal insulation materials (Suzhou) Co., Ltd. 2, Durkflex (American brand) Manufacturer: Durkee (Guangzhou) thermal?insulation?material Co., Ltd. Durkee (Wuhan) thermal?insulation?material Co., Ltd. 3, Aeroflex (Thailand Brand) Manufacturer: Aeroflex Polymer Technology (Shanghai) Co., Ltd.

Q:What are the physical properties of refractory material?: The mechanical properties of refractory material include compressive strength, volume density and sclerosing, slag resistance, elastic modulus, thermal shock resistance, oxidation resistance, bibulous rate, fluidity, resilience, bond strength and slump, electrical conductivity, specific heat, heat capacity, the impact strength, linear change, torsional strength, stomatal aperture distribution, resistance to acid, etc. The use performance of refractory material include refractoriness, thermal emissivity, condensation, porosity, coefficient of thermal expansion. Thermal properties of refractory material include thermal conductivity, temperature conductivity, plasticity, the hydration resistance, creep performance. The physical properties of the refractory materials include structure performance, mechanical properties, shear strength, load softening temperature, CO erosion resistance. The structure properties of the refractory materials include porosity, alkali resistance and sintering. The operating performance of refractory material include consistency, tensile strength, the use performance and operating performance, wear resistance, bending strength, thermal properties.

Q:What do RH and DH stand for in refractories?: DH :An agreement that allows strangers to build shared keys, originally invented by Diffie and Hellman.

Q:Does anyone know what is the use of waste refractory materials?: Waste refractory materials can be 1, Recycled to do the aggregate and powder of castable , or make bricks. 2, can be reused after smash.3, Metal silicon is an anti oxidant in refractory material, mainly functioning as he oxidation resistance, at the same time improve its toughness.

Q:Where is the sizing nozzle for refractories? Just enter the line, master into!: This is the use of steel tapping water procedures inside!!

Q:Who knows how to divide the building fire grade and fire resistance grade?: I hope to help you building fireproof rank division is one of the most basic measure in building fire safety technical measures, Building's fireproof rank is divided into class one, two, three, four according to China's architectural design specification. Fire-resistant capability of the highest level is the strongest; Fire resistance of four level of the weakest. The fire resistance level of a building depends on the combustion performance and fire resistance of the building components that comprise the building. The so-called building component refers to a series of basic components, such as wall, foundation, beam, column, floor, stair, ceiling and so on. The judgment condition of the fire resistance There are three conditions for components' fire resistance limit to be reached, namely, the fire resistance limit of the building component: Loss of support and integrity; loss of time to fire the role of the time; as long as any of these three conditions is met, it will reach its limit of fire. Hope my answer will help you.

Q:whether the fire resistant level of aerated concrete building blocks can reach the grade one?: it has fire resistant level, incombustible?material,and it should reach grade one level.

Q:What are the main materials in concrete fireproofing material?: fireproofing materials mainly consist of class A incombustible?material and class B1 nonflammable material. Class A incombustible?material: Granite, marble, terrazzo, cement products, concrete products, gypsum board, lime products, clay products, glass, tiles, mosaics, steel, aluminum, copper alloy; class B1 nonflammable material: Ceiling materials, dry wall, fibrous plaster.

Q:What are the advantages of refractory material?: Jingute WHL type, GDS type

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