研究了酸溶轧钢废钢渣制取铁盐净水剂的工艺条件。结果表明,废渣在16％H_2SO_4～11.1％HCl混酸中加热回流1h,铁的溶出率达92.4％;废渣与碳粉按5:1混合,于1000℃灼烧1h,而后在16％H_2SO_4中加热回流1h,铁的溶出率为73.6％。此净水剂在投加量为1％时,对实际水样的浊度和COD去除率分别为89.5％和71％,净水效果优于硫酸亚铁。 The technological conditions of preparing iron salt water purifier from acid-soluble steel scrap were studied. The results showed that the slag was heated under reflux in 16% H 2 SO 4 ~ 11.1% HC1 mixed acid for 1 h, the dissolution rate of iron was 92.4%, the residue was mixed with the carbon powder at 5: 1, then burned at 1000 ℃ for 1 h and then heated in 16% H 2 SO 4 Reflux 1h, the dissolution rate of iron was 73.6%. The water purifier dosage of 1%, the actual water samples of turbidity and COD removal rates were 89.5% and 71%, water purification effect is better than ferrous sulfate.