Henan Jiangshan Industry Co., Ltd produces alumina bubble which is made by blowing molten alumina in a controlled atmosphere to create hollow spheres. Alumina bubble has a low density making it suitable for use in high alumina insulating bricks and castables due to its insulating properties. The company guarantees alumina bubble will contain over 99% alumina and meet standards for low impurities, density, damage rate, and refractoriness.

1. Henan Jiangshan Industry Co., Ltd
www.jiangshanhn.com | info@jiangshanhn.com | Tel: +86-371-67618976 | Fax: +86-371-67618916
Alumina Bubble is produced by
blowing the melt of Calcined Alumna in a
controlled atmosphere to produce hollow
spheres. Due to its low density, fused
alumina bubble is ideal for high alumina
based Insulating Bricks and castables.
Type
Items
Guarantee value Typical value
Chemical
Composition (%)
Al2O3 ≥99 99.51
SiO2 ≤0.2 0.14
Fe2O3 ≤0.1 0.05
Na2O ≤0.4 0.25
Bulk density(g/cm3
) 0.5-1.0 0.74
Damaged rate (%) <15 12
Refractoriness(0
C) ≥1800
Grain Size 5-0.2mm, 0.2-1mm,1-3mm,3-5mm
Test standard GB/T3044-89
Packing 25kgs/bag(Damp-proof) 1000kgs/bag
Usage Refractories