Bubble alumina

Bubble alumina, also known as Alumina hollow spheres, is primarily composed of high-purity alumina. Characterized by superior high-temperature resistance, strong thermal shock resistance, and low density, these white hollow spheres are essential in metallurgy, chemical industries, and refractory manufacturing.

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Product Name
Bubble Alumina
Brand
JIAMA
Al₂O₃
> 99.5%
Material
Alumina
SiO₂
< 0.1%
Operating Temp
1800°C
Na₂O
< 0.3%
Melting Point
2250°C
Fe₂O₃
< 0.1%
Shape
Hollow Spheres
Size
0.2-5mm, 0.2-0.5mm, 0.2-1mm, 1-2mm, 2-3mm, 1-3mm, 3-5mm
Color
White
Primary Application
Refractory materials, high-temperature insulation materials, refractory bricks, grinding wheels, castables, etc.

Detailed Applications

1. Refractory Materials

An important raw material for furnace linings and roofs. It significantly improves high-temperature resistance and thermal efficiency in furnaces and kilns that require stability over extended periods.

2. Thermal Insulation

Utilizing low thermal conductivity and lightweight properties to manufacture insulating bricks and boards. Widely used in construction, chemical, and metallurgical fields to reduce heat transfer.

3. Catalyst Support

With a high specific surface area and stable chemical properties, these spheres serve as excellent catalyst supports, improving the activity and stability of catalytic reactions.

4. Fillers and Adsorbents

Used in chemical and environmental protection sectors to purify gases/liquids or remove harmful substances, supporting cleaner production processes.

5. Lightweight Structures

Ideal for aerospace insulation panels and automotive components. They reduce overall weight while maintaining strength, thereby improving equipment operating efficiency.

6. High-Temp Insulation Fillers

Functions as ultra-high-temperature insulation filler and lightweight aggregate for refractory concrete and castables, providing effective protection in extreme heat environments.

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