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根据我国锰矿资源的特点,从五十年代起开始用贫锰矿在电炉和高炉内冶炼富锰渣,作为生产金属锰和锰系铁合金的人造富锰矿。据不完全统计,全国有十二个工矿企业四台电炉、十三座高炉长期地冶炼富锰渣,每年副产8～10万吨高锰高磷生铁(以下简称副产铁)。副产铁的磷含量高,多数无法销售,造
According to the characteristics of manganese resources in our country, starting from the fifties, the manganese-rich slag was smelted in the electric furnace and blast furnace with poor manganese ore as the man-made manganese ore for the production of metallic manganese and manganese ferroalloy. According to incomplete statistics, there are twelve industrial and mining enterprises in the country with four electric furnaces and thirteen blast furnaces with long-term smelting of manganese-rich slag, each producing 80,000 to 100,000 tons of high-manganese and high-phosphorus pig iron (hereinafter referred to as by-product iron) by-product. By-product iron phosphorus content is high, the majority can not be sold, made