Andalusite

Andalusite
Details:
Andalusite is a naturally occurring alumino-silicate mineral with a high alumina content, making it an exceptional raw material for the production of refractory products. Its chemical formula is Al₂SiO₅, and it is known for its remarkable thermal stability and resistance to chemical reactions. These properties make it a valuable component in various industrial applications that demand durability and performance under extreme conditions.
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Description
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Andalusite products are sourced from high-quality deposits and undergo stringent processing to ensure purity and consistency. They are available in various forms, including lumps, powders, and bricks, tailored to meet specific industrial requirements. The mineral's prismatic and anhydrous crystal structure contributes to its high refractoriness and excellent thermal shock resistance. it's ability to transform into mullite at relatively low temperatures (between 1,200°C and 1,550°C) further enhances its refractory properties

Product Parameters

 

Brand

Properties

0-1mm

1-3mm

3-5mm

200mesh

Al2O3 (%)

58.6

57.97

56.21

58.18

SiO2 (%)

38.65

39.44

38.97

39.45

Fe2O3 (%)

0.67

0.68

1.11

0.62

TiO2 (%)

0.11

0.11

0.19

0.12

CaO (%)

0.06

0.04

0.21

0.01

MgO (%)

0.08

0.15

0.18

0.13

Na2O (%)

0.07

0.09

0.20

0.16

K2O (%)

0.34

0.68

0.87

0.59

L.O.I

0.59

0.59

0.97

0.60

 Bulk Density(g/cm3)

3.1

3.1

3.1

3.1

Product Usage:

 

Andalusite finds extensive use across multiple industries. In the refractory sector, it is a critical component for lining furnaces, kilns, and reactors, providing insulation and protection against extreme heat and chemical corrosion. In the ceramics and porcelain industries, it enhances the mechanical strength and thermal shock resistance of products. It is also used in the foundry industry for crucibles and molds, ensuring durability and resistance to molten metals. Furthermore, it is utilized in glass manufacturing to improve the refractory properties of glass formulations

 

Product Advantages

Superior Chemical Stability

Resists chemical corrosion, ideal for harsh industrial environments.

Low Thermal Expansion

Minimal expansion under heat maintains structural integrity and reduces cracking.

Thermal Shock Resistance

Withstands rapid temperature changes without degradation, enhancing durability..

High Alumina Content

Up to 60% alumina provides enhanced strength and refractory properties.

High Refractoriness

Andalusite boasts a high melting point, ensuring stability under extreme temperatures.

Energy Efficiency

Low thermal conductivity reduces heat loss, optimizing energy use.

 

Product technology:

 

andalusite production process

Key steps include:

The production of andalusite involves careful mining and processing to maintain its high-quality characteristics. Our state-of-the-art facilities ensure that the mineral is extracted and processed with minimal environmental impact. The refractory raw material  is then subjected to rigorous quality control measures, including chemical analysis and physical testing, to guarantee its performance in industrial applications

Why Choose Us?

High-Quality Materials:

We use only high-purity alumina to ensure superior performance and durability.

01

Advanced Manufacturing:

State-of-the-art technology and rigorous quality control guarantee consistent quality.

02

Custom Solutions:

We offer customizable sizes, shapes, and specifications to meet your unique needs.

03

Global Reach:

Our products are trusted by clients worldwide, supported by a robust distribution network.

04

Expert Support:

From product selection to after-sales service, our team provides comprehensive support.

05

Packing

Andalusite products are packaged to ensure safe transportation and storage. They are typically packed in durable bags, with options for 25kg bags or larger bulk bags for bulk orders. This packaging is designed to protect the material from moisture and physical damage, preserving its quality until it reaches the end user.

andalusite packing

 

FAQ

Q: What is the alumina content of andalusite?

A: Andalusite contains up to 60% alumina, making it a high-alumina refractory material

Q: How does andalusite perform in high-temperature applications?

A:Andalusite has a melting point exceeding 1750°C and excellent thermal shock resistance, making it suitable for high-temperature environments

Q: Can andalusite be used in the ceramics industry?

A: Yes, andalusite enhances the mechanical strength and thermal shock resistance of ceramic products

Q: What are the advantages of using andalusite in refractory applications?

A: Andalusite offers high refractoriness, low thermal expansion, and excellent resistance to chemical corrosion, making it a reliable choice for refractory linings.

 

 

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