What are the methods for removing iron from silicon carbide
Physical iron removal method: The silicon carbide grain size sand produced by Zhengzhou Haixu Abrasives Co., Ltd. generally purchases a 8000-gauss roller magnetic separator, and adjusts the feeding speed and the size of the baffle plate according to the customer’s use and iron requirements to achieve removal. effect of iron. There are two types of micropowders: wet magnetic separator and dry magnetic separator. Among them, the high-magnetic energy-saving micropowder electromagnetic separator, which has been transformed by our company and has applied for a patent, has a particularly good effect, which can not only reduce the magnetic separator during use. Noise and calorific value, and the feeding speed is automatically adjusted according to the different iron content of the material to improve the separation effect of the magnetic separator. The problem of unclean magnetic separation.
Chemical iron removal method: Because the chemical stability of silicon carbide is relatively good, it is difficult to react with other substances, and iron is easier to react with other substances, so we can use this to remove the iron reaction. The iron in the silicon carbide micropowder is mainly in the form of ferric oxide. Therefore, what we mainly remove is ferric oxide. Ferric oxide is an alkaline chloride, which can react with acid to dissolve in acid, and silicon carbide powder is insoluble in acid. After the reaction, we can collect the bottom silicon carbide powder.
