What are the common preparation methods of lithium silicate?
2022-11-28
Lithium silicate is a widely used industrial raw material,used as coating base material, can be used in ships, Marine engineering and building materials coating, etc. As a surface treatment agent,it can be used as an adhesive for light preservation, decoration, radio, plastic film and so on.Used as asbestos, glass, TV phosphor, wood, automobile clutch, etc.
At present, the main preparation methods of lithium silicate are: solid phase method, sol-gel method, precipitation method, spontaneous combustion method, hydrothermal method and so on.Let me talk you through three of them in detail.
1. Solid phase method
The traditional pulverization method is solid phase method,it has the advantages of high pulverization efficiency, low cost and simple preparation.But there are also low efficiency, large energy consumption, coarse powder particles and other shortcomings.Lithium silicate powder was prepared by solid phase method. Lioh ·H2O, Li2CO3 and SiO2 were generally used as raw materials. Lithium silicate powder was obtained by mixed ball milling and forging firing at high temperature.
2. Sol-gel method
Sol-gel method is a commonly used liquid phase method.This method has many advantages, such as the reactants can be mixed evenly, the reaction temperature is low, the reaction is easy to proceed.So in the preparation of lithium silicate powder is also commonly used.The research shows that the selection of suitable raw material is very important when preparing lithium silicate powder.
3. Water heating method
Hydrothermal powder has the advantages of low synthesis temperature, high product purity, good dispersion, easy to control the crystallization phase, etc,are widely used in scientific research and production.However, there are few reports about the preparation of lithium silicate by hydrothermal method, which has been studied in recent years.
At present, there are a variety of methods to prepare lithium silicate, on the explanation here, I hope this article can help you.
