200 Mesh Rotary Calcined Bauxite 85% Alumina for Welding Flux

• Feature: Long Time Materials
• Refractoriness (℃): 1770< Refractoriness< 2000
• Shape: Grit
• Model NO.: RKB
• Types: Rotary Kiln Bauxite
• Size: 0-1/1-3/3-5mm/200mesh
• Fe2o3: 2%
• Bulk Density: 3.30g/cm3
• Type: Refractory Material
• Material: Bauxite
• Transport Package: Big Jumbo Bags
• Specification: 80-85% Al2O3
• Trademark: SEPPE
• Origin: China
• HS Code: 25083000
• Production Capacity: 3000mt

Product Description

Product Description

Calcined bauxite is one of the principal ore of aluminum. Rotary kiln calcined bauxite is obtained by calcining superior grade bauxite at high temperature (from 850ºC to 1600ºC) in the rotary kiln. This 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 84% to 88%.

Besides, through calcination, the density and refractory resistance will also be improved to varying degrees. The grade of bauxite can be increased greatly.

The calcined bauxite can be processed into bauxite sand and bauxite powder of different particle sizes, both of which can be directly used as refractory sand. It has a very high status in the field of refractory materials.

 

 

Product Parameters

 

Calcined Bauxite Technical Data
Chemical Data                                                                                              Physical Data
Al2O3	70-88%	Shape	Block/Sand/Powder
TiO2	2-3%	LOI	0.1-0.5%
SiO2	6-18%	Specific Gravity (g/cm^3)	3.70
Fe2O3	0.5-2.5%	Bulk Density (g/cm^3)	2.90-3.25
P2O5	0-0.3%	Hardness Mohs	9.0
MgO	0-0.2%	Moisture Content	0.1-0.3
CaO	0-0.4%	Polished Stone Value	70Min

 

Detailed Photos

 

 

Application

1. Aluminum smelting industry. Used in national defense, aviation, automobiles, electrical appliances, chemicals, etc.

2. Precision casting. The bauxite clinker is processed into fine powder to form a mold and then precision cast. 

3. Used in refractory products. High bauxite clinker has a refractoriness of up to 1780°C, strong chemical stability and good physical properties. 

4. Aluminum silicate refractory fiber. Light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance. 

5. Using magnesia and bauxite clinker as raw materials, adding appropriate binders, the effect is very good for castables.

6. Manufacturing high alumina refractory cement.

7. High fraction surface coating. Such as anti-skid road surface treatment.

 

Company Profile

SEPPE is a comprehensive industrial manufacturer integrating aluminum oxides and sintered bauxite products development and manufacturing, including brown fused alumina and white fused alumina, foundry ceramic sand, ceramic proppants and activated ceramic ball. These are used in hydraulic fracking wells, abrasive grindings, refractory, foundries and casting plants, with more than hundreds of application worldwide.

 

 

Packaging & Shipping

 

 

Our Advantages

1. Own testing and quality control laboratory to provide technical support.

2. Exclusive cooperation minerals, providing stable quality and high purity bauxite resources.

3. Guaranteed production capacity, with 3000 tons monthly.

4. Customized different alumina content and particle size according to different customer needs.

5. Provide third-party test report.

 

FAQ

1. Are you a factory?
Yes, SEPPE is a comprehensive Industrial Group. We specialize in producing aluminum oxides , sintered & calcined bauxite,  abrasives & refractory materials etc...

2. What's the MOQ?
One full container (25-28tons). More quantity you required , better price we can offer for you.

3. What's the leading time?
That depends on order quantity.  Generally it takes 7-10 days for one full container. 

4. What's the payment term?
50% T/T in advance, balance payment at sight the copy of BL.

5. What's the package?
1.0MT/1.25MT/1.35MT Big Jumbo Bags; 50KG Bags; Customized.

6. Can I get a sample to test?
Sure, we can provide free sample (not including courier).