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CN101397643B 铝电解用磷硫生铁 有权 转让

铝电解用磷硫生铁
摘要：
一种铝电解用磷硫生铁，其生铁重量百分比组成为：碳1.8～3.8％、硅1.8～2.8％、锰0.20～1.5％、磷0.1～0.8％、硫小于1.0％，其余为铁，其它杂质≤1％；所述生铁铁水出炉时，按铁水重量的0.5～1.0％加入添加剂，添加剂重量百分比组成为：稀土2.0～4.5％、钙2.5～4.5％、钡1.5～3.5％、铝2.0～3.5％、铋1.0～2.5％、锰1.5～4.5％、硅35.0～45.0％，其余为铁，其它杂质≤1％。由于采用添加剂及高硫、碳、硅、锰成分范围的变化，以硫代替磷，使其化学成分更合理，经试验：铁-炭压降比传统磷生铁降低10～20mV；压脱力降低5～22％，脱硫率6～25％。
摘要（英）：

The invention discloses a novel type sulfur phosphorus pig iron used for aluminium electrolysis, wherein, the compositions of the pig iron according to weight percentage is as follows: C: 1.8 to 3.8 percent, Si: 1.8 to 2.8 percent, Mn: 0.20 to 1.5 percent, P: 0.1 to 0.8 percent, S: less than 1.0 percent, Fe as the rest and other impurities: less than or equal to 1 percent); when in tapping, the hot metal is supplemented in the proportion of additives (0.5 percent to 1.0 percent of hot metal). The constituents of additives according to weight percentage is as follows: RE: 2.0 to 4.5 percent, Ca: 2.5 to 4.5 percent, Ba: 1.5 to 3.5 percent, Al: 2.0 to 3.5 percent, Bi: 1.0 to 2.5 percent, Mn: 1.5 to 4.5 percent, Si: 35.0 to 45.0 percent, Fe as the rest and other impurities:less than or equalto 1 percent. The use of additives, the change of constituents range of high S, C, Si, Mn, and S substituting P leads to that the chemical constituents are more reasonable, by tested, Fe-C voltage drop is 10 to 20mV lower than that of traditional P-Fe, pressure-disengaging force reduces by 5 to 22 percent, and desulfurization rate is 6 to 25 percent.

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