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What can refractory raw material used to do?

Views: 0     Author: Site Editor     Publish Time: 2020-11-23      Origin: Site

Refractory raw material is a type of raw material that has refractoriness and it is used for manufacturing refractory material, which is the most fundamental and the widest use of refractory raw material. Besides this, refractory raw material also has some other uses. After reading the passage, you might have a deeper perception of the usages of refractory raw materials.



-        What is refractory raw material?

-        Properties of refractory raw material

-        Applications of refractory raw material



What is refractory raw material?

Refractory raw materials can be made into refractory materials through a series of processes. Therefore, the properties of refractory raw materials will influence refractory products both directly and indirectly. ` are often in powdery states or are of certain particle sizes. The commonly seen instances of refractory raw materials are clay or minerals, such as Magnesia, bauxite and graphite. As they are being exploited massively in recent years, the rest part as well as the quality of refractory raw materials has dropped sharply. Using recycled (secondary) raw materials might be a solution to the raw material crisis.



Properties of refractory raw material

Refractory raw material is the basis of refractory material, which means it possesses some general characteristics that refractory material has, including good refractoriness, low thermal conductivity, good thermal resistance, corrosion resistance, abrasion resistance, stability and durability.


Other properties of refractory raw material are often measured by four parameters: density, grain distribution, controlled chemical analysis and crystal size. Since there are different types of refractory raw materials, the four parameters for each one may vary. For example, for magnesite, its density varies from 2.68% to 3.30% and its crystal size differs from 50 to 1000 micron.



Applications of refractory raw material

Refractory raw material can be utilized to manufacture refractory material. Steps involved are beneficiation and co-sintering. Beneficiation means to extract good raw materials and avoid environmental hazards, using methods of fluidized bed acid leaching, hydrogen assisted beneficiation or bio leaching. The co-sintering process involves wet grinding, using wet extrusion and firing under conditions where temperatures are high.


Refractory raw material can also be combined with other raw materials in order to achieve the desired characteristics in the produced refractory material. This is related to nanotechnology, a high-tech with promising future. There are a lot of commonly seen examples, such as MgO-SiC-C composite. MgO-SiC-C material is a kind of powdery state refractory raw material that has excellent refractoriness (ranging from 1500 - 1700 Celsius degrees) and anti-oxidations. The combinations of different raw materials would lead to the overall improved properties. Thus, materials can have better performance during operations.


Generally speaking, refractory raw material is distributed in many countries across the world and China is one of the largest sources of refractory raw materials in the contemporary world. Though we have abundant resources nowadays, refractory raw materials will eventually run out one day as all kinds of industries develops at a fast pace. Therefore, we should try our best to save energies and protect environments.