Application of powdered sodium silicate in the production of refractory materials
Powdered sodium silicate, also known as “water glass”, is a chemical compound that has wide applications in various industries due to its special properties. One of the most important uses of this material is in the production of refractory materials. Refractory materials refer to materials that remain stable at high temperatures and do not deform or decompose. In this article, we will investigate the use of powdered sodium silicate in the production of refractory materials and we will examine different aspects of this application.
Chemical and physical properties of sodium silicate
Chemical composition of powdered sodium silicate
Sodium silicate powder is a combination of sodium oxide (Na2O) and silicon dioxide (SiO2). The ratio of these two compounds in the final product may be different and has a direct effect on its properties.Physical properties
Sodium silicate is a white powder that easily dissolves in water and forms an alkaline solution. This material has high adhesion properties, heat resistance and pressure tolerance.
The effect of powdered sodium silicate in the production of refractory materials
Improve thermal properties
Powdered sodium silicate is used as a bonding agent in refractory materials. This material improves thermal properties and increases resistance to high temperatures.
Increased mechanical strength
One of the advantages of using powdered sodium silicate in refractory materials is to increase the mechanical strength of these materials. This property makes the refractory materials produced with sodium silicate have the ability to withstand pressure and mechanical shocks.
Chemical resistance
Powdered sodium silicate increases the chemical resistance of refractory materials against corrosive materials.This property is especially important in industries that deal with strong chemicals.
Applications of sodium silicate in various industries
Metal industry
In the metal industry, sodium silicate is used as a material for the production of casting molds. These molds have the ability to withstand high temperatures and high pressures.
Glass industries
In the glass industry, sodium silicate is also used to produce refractory materials. These materials are used in glass melting furnaces and other high temperature equipment.
Ceramic industries
Sodium silicate is also used in the production of refractory materials for ceramic furnaces. These materials have high resistance to thermal shocks and increase the lifespan of furnaces.
Methods of producing powdered sodium silicate
wet method
The wet method is one of the most common methods of producing sodium silicate.This method includes the following steps:
Preparation of raw materials: Silica (SiO2) and caustic soda (NaOH) are the main raw materials. The quality of these materials has a direct impact on the quality of the final product.
Dissolving caustic soda: caustic soda is dissolved in water to obtain an alkaline solution with the appropriate concentration.
Reaction with silica: Silica is slowly added to the caustic soda solution and the reaction is carried out at controlled temperature and pressure to form sodium silicate.
Evaporation and concentration: The solution resulting from the reaction is evaporated and concentrated.
Drying: The concentrated solution is dried and the sodium silicate is turned into a powder.
Milling and packaging: The produced powder is milled and then packaged.
dry method
The dry method, also known as the melting method, includes the following steps:
Preparation of raw materials: Silica and caustic soda are mixed in precise proportions.Melting of raw materials: The mixture of raw materials is introduced into high-temperature furnaces and a chemical reaction is carried out between them to produce molten sodium silicate.
Cooling and crushing: Molten sodium silicate is cooled and turns into a solid state.
Grinding: Solid sodium silicate lumps are ground into fine particles.
Sifting and packing: The produced powder is sieved and then packed.
Advantages of using powdered sodium silicate in refractory materials
The use of sodium silicate powder in the production of refractory materials can make significant improvements in the quality and efficiency of these materials. Its main advantages include improving thermal properties, increasing mechanical strength and high chemical resistance.Summary about the method of producing refractory materials with powdered sodium silicate
The use of sodium silicate powder in the production of refractory materials due to the unique properties of this material can lead to the production of durable products resistant to heat and chemicals. Using advanced equipment and high technical expertise, Isfahan Gostar Silicate Company is able to produce sodium silicate powder with high quality by both wet and dry methods. For more information and to order products, contact us.
Frequently asked questions for the production method of refractory materials with powdered sodium silicate
How is sodium silicate powder used in refractory materials?
This material is used as a binding agent in refractory materials and increases the thermal and mechanical resistance of these materials.What are the advantages of using powdered sodium silicate in the production of refractory materials?
The main advantages include improved thermal properties, increased mechanical strength and high chemical resistance.
Does using powdered sodium silicate have any disadvantages?
Among the disadvantages of this material, we can point out the high production cost and the need for special equipment for use.
How can I order powdered sodium silicate products?
To order powdered sodium silicate products from Iran Silicate Company, you can contact our sales department or proceed through our website