Milled ferrosilicon 15%, also known as low ferrosilicon 15%, is made by melting 75% ferrosilicon and steel scrap in an induction furnace. The molten alloy is poured into a sand bed to cool, then broken into blocks, and then crushed, ground and winnowed to the required size range in two steps. It is suitable for dense media in the separation process of dense media in the mining industry. Dense media separation is a well-established density separation process that is well suited for the separation