Sodium silicate plant is a device that produces sodium silicate solution, a chemical that is widely used in various industries, also known as water glass, liquid glass or soluble glass. The main components of sodium silicate solution are silicon dioxide (SiO2) and sodium oxide (Na2O), and their ratio can be adjusted according to different applications. Sodium silicate solution has the following characteristics:
- High stability, not easily affected by atmospheric changes
- Can react with other substances, forming different compounds
- Can be used as an adhesive, coagulant, fire retardant, textile and wood processing agent, etc.
There are two main methods for producing sodium silicate solution: direct method and indirect method. The direct method is to react quartz sand and caustic soda under high temperature and pressure, generating sodium silicate solution. The indirect method is to first react quartz sand and sodium carbonate at high temperature, producing anhydrous sodium silicate, and then dissolve it with water, generating sodium silicate solution. The direct method has the following advantages over the indirect method:
- High production efficiency, short reaction time
- Low energy consumption, saving energy
- High product quality, high purity
At present, most of the sodium silicate equipment on the market use the direct method production process, such as the sodium silicate equipment provided by Marsina Engineering srl company, which can customize different specifications of equipment according to customer needs. Its standard equipment has a production capacity of 100 tons per day. The equipment mainly consists of the following parts:
- Raw material measurement: The solid and liquid raw materials are measured by the weighing system of the reactor.
- Reaction: Quartz sand, caustic soda solution and water are added to the stirred reactor in an appropriate proportion for batch reaction under the action of 12 bar pressure saturated steam.
- Filtration: The sodium silicate solution obtained after the reaction is filtered to remove impurities.
Sodium silicate equipment is a chemical equipment with a broad market prospect. With the advancement of technology and the increase of environmental protection requirements, sodium silicate equipment also needs to be constantly innovated and improved to meet the needs of different industries and fields.
