Silicon Slag Silicon Metal Slagis a byproduct from the manufacture of silicon metal it is a kind of mixture which contains the main content Silicon 3565 and other components such as C S P Al etc It is a good substitute for FeSi in steel making which has advantage in lowing the cost of production and reusing resource Usually we use silicon slag to produce silicon briquette which is far and wide market in domestic and internationalour silicon metal is used by the chemical industry in the production of silicon compounds and by semiconductors Aluminum manufactures to improve the useful properties of aluminum as well as in the manufacture of silicon wafers used in photovoltaic solar cells and electronic