How is crystalline silicon micropowder prepared?

Today, a crystalline silicon micro powder manufacturer will give you a detailed introduction to how crystalline silicon micro powder is prepared. Crystalline silica minerals quartz sand, vein quartz, and powdered quartz. Crystalline silicon micro powder is generally prepared by using high-purity crystalline quartz sand, crushing it to an appropriate particle size, then grinding it using dry or wet processes. Subsequently, silicon micro powder with qualified particle size is separated through methods such as cyclone classification, sedimentation, and hydrocyclones. After a series of purification including magnetic separation, acid washing, and flotation, the crystalline silicon micro powder is obtained. The crystalline silicon micro powder obtained this way has an irregular polyhedral particle shape, which silicon micro powder. In China, jet mills are generally used to prepare ultrafine silicon micro powder. The principle is to use the energy of high-speed air currents to impact the micro powder, causing them to collide and rub against each other, thereby crushing the aggregates. This method can obtain silicon micro powder with a particle size between 1 and 5 μ. By using high-hardness yttria-stabilized zirconia balls as the grinding medium, and using a polyurethane-lined stirred media mill to grind the quartz sand fine, followed by classification, high-purity ultrafine crystalline silicon micro powder with an SiO2 mass fraction of 99.91% and a particle size of less than 1 μ can be obtained.