So, when it comes to picking raw materials and getting them ready for use, it's super important to make sure the quality of silicon ore and reducing agent is consistent and top-notch. This helps to cut down on the amount of impurities in the final product.Next, you've got to give the silicon ore a good clean and sift to get rid of any unwanted bits and pieces. This helps to make sure the reduction process goes smoothly.Now, let's talk about the high-temperature reduction process.
When heating in an electric arc furnace, the temperature needs to be strictly controlled to make sure the reaction is carried out at the right temperature to get high-purity metal silicon.Keep the atmosphere in the furnace stable to stop oxygen from getting into the reaction system and stop metal silicon from being oxidised.
Crushing, screening and grinding process control:
Choose the right crushing equipment to make sure the size of the metal silicon particles is the same, which makes it easier to screen and grind them.
Screen the crushed metal silicon to make sure the different sizes of metal silicon can be separated effectively.
Impurity Removal and Purification:
Use smelting, dissolution, filtration, centrifugation and wet impurity removal methods to remove impurities in metallic silicon and improve the purity of the product. And finally, purify the metallic silicon powder to improve the product quality even more.
