Refractory Classification Based On The Raw Material's Properties

Loka Refractories As we know, refractory or heat and fire resistant materials have various types and are classified into several groups. This article will discuss the classification of refractories based on the nature of the raw materials.

Refractory materials can be acidic, neutral or basic. This can be seen from its resistance to slag and atmosphere with these properties.

What materials fall into these three classifications? The following is an explanation of the type of refractory based on the nature of the ingredients.

Type of Refractory based on Material Properties

1. Acidic

Acidic refractory means that the material is resistant to acidic atmospheres of air and slag (pH 1-6). Examples of acid refractories are: Silica, Zirconia, and Alumino-silicate.

2. Neutral

If the refractory material is resistant to both acid and alkaline conditions (pH 7), it means that it is neutral. Neutral refractory materials, namely: Alumina, Carbon containing, and Chromite.

3. Basic

A refractory material that is resistant to basic atmospheres and slag (pH 8-14) means that the material is alkaline. Examples of basic refractories are: Magnesite, Dolomite, and Magnesite chrome.

There you have it! Those are the explanation of the types of refractories based on the properties of the ingredients they contain.