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一、前言 江西省的硅石矿有两种,一种是Fe_2O_3低于0.3％、SiO_2大于98.5％低铁高品位硅石,这种优质硅石可直接用于生产出口创汇产品金属硅;另一种是Fe_2O_3大于0.3％、SiO_2为97％左右的商铁低品位硅石,这种硅石可直接用于生产出口创汇产品硅铁。上述两种硅石矿,遍及全省,且储量大。 生产硅铁的投资少、电耗小,建厂快,对于有条件的矿山或乡镇,乃是一条致富的路子。 二、硅铁的市场形势 硅铁是炼钢的脱氧剂,炼硅钢的合金剂,也是炼弹簧钢或耐热钢时必须加入的合
I. Preface There are two kinds of silica mine in Jiangxi Province, one is less than 0.3% Fe_2O_3 and SiO_2 is more than 98.5% low-grade high-grade silica. This kind of high-quality silica can be directly used to produce metal silicon for export foreign exchange products. Fe2O3 is more than 0.3%, SiO2 is about 97% of low-grade commercial silica, this silica can be used directly for the production of ferrosilicon export products. The two types of silica mine, all over the province, and large reserves. The production of ferrosilicon less investment, low power consumption, fast construction, for qualified mines or townships, but is a way to get rich. Second, the market situation of ferrosilicon Ferrosilicon is a steel-making deoxidizer, silicon steel alloy agent, but also the spring steel or heat-resistant steel must be added when the joint