Calcined Bauxite

Want to keep this datasheet? Save it now in your required format

Description

GNPGraystar offers Guyanese bauxite. Guyanese bauxite is the most refractory bauxite available in the world due to its higher alumina content and lower alkali and impurit content. Replacing Chinese bauxite with Guyanese bauxite results in a chemistry/performance upgrade in refractory mixes. In mortars and plastics, this bauxite will extend the shelf life over chinese bauxite considerably because it is less reactive in acid and phosphatebonded refractories.


The mineralogy of Guyanese bauxite is alpha alumina and mullite, so there’s no shrinkage or cracking when exposed to hot metal. This product actually has slight expansion at high temperatures versus the shrinkage in Chinese bauxite (containing alpha alumina and glass).


As a ceramic ball-milled product, this may also be used to substitute pricier calcined alumina material in bauxite and mullite mixes.

Los datos sobre este material han sido proporcionados por GNPGraystar Specialty Materials.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyValueComment

Densidad aparente

3.1 - 3.2 g/cm³

Show Supplier Material materials with Densidad aparente of 3.1 - 3.2 g/cm³

ASTM C357

Loss on Ignition

0.5 %

Show Supplier Material materials with Loss on Ignition of 0.5 %

max.

Water content

0.12 %

Show Supplier Material materials with Water content of 0.12 %

0.5 %

Show Supplier Material materials with Water content of 0.5 %

Chemical properties

PropertyValueComment

Aluminio

87.5 %

Show Supplier Material materials with Aluminio of 87.5 %

min. Al₂O₃

Hierro

1.75

Show Supplier Material materials with Hierro of 1.75

max. Fe₂O₃

Silicona

7.5

Show Supplier Material materials with Silicona of 7.5

max. SiO₂

Titanio

3.5

Show Supplier Material materials with Titanio of 3.5

max. TiO₂

Technological properties

Property
Other

See picture part of the datasheet for available sizing