1. The chemical industry iron oxide scale is supplied to chemical plants for the production of iron oxide red, iron oxide yellow, ferric chloride and ferrous sulfate. Among them, the liquid phase precipitation method using iron oxide scale as a main raw material can produce iron red from yellow phase red to purple phase red color. 2. The main raw material for the manufacture of ferrosilicon alloy smelting ferrosilicon alloy is steel scrap. The annual steel scrap used in the smelting of ferrosilicon alloy in the country is about 2 million tons. The process of smelting ferrosilicon alloy with iron oxide instead of steel scrap has matured and been applied. Silica, metallurgical coke particles and iron oxide scale are used as raw materials to form ferrosilicon under a reducing atmosphere. The annual iron oxide scale in the country is about 10 million tons. Ample raw materials can be provided. 3. Sintering raw material iron oxide scale is a good auxiliary material for sintering. On the one hand, the relative size of iron oxide scale is coarser, which can improve the gas permeability of the sintered layer. On the other hand, FeO in the scale of iron oxide will be burned and oxidized into Fe2O3. Exothermic can reduce solid fuel consumption while increasing sintering productivity. Experience has shown that 8% of iron oxide scale can increase yield by about 2%. In addition, iron oxide scale can also be used to make sponge iron. The produced sponge iron has high w(Fe), low impurity content and stable composition. Compared with the sponge iron produced by ore, it does not contain gangue impurities and can be used as high-quality scrap steel raw materials. At the same time, the reduced iron powder can be produced by a coarse reduction method or a fine reduction method. At present, in the domestic, iron oxide skin as a sintering raw material, has formed a large-scale industrial production. The production of ferrosilicon alloy from iron oxide scale has a simple process and a large-scale production trend. A Face Shield, an item of personal protective equipment (PPE),
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