利用工业废硫酸制备高纯度无铁离子硫酸铝

Preparation of Pure Aluminum Sulfat e from Waste Sulfuric Acid

利用工业废硫酸制备的硫酸铝含有大量的铁离子,浓度在600mg/kg以上,通过选择适当的有机络合沉淀剂,在室温条件下,可将铁离子浓度降低至50mg/kg以下。

Aluminum sulfate prepared from waste sulfuric acid has a large amount of i ron ion.Fe concentration is above 600mg /kg.Under room temperature,concentration of iron ion is decreased to 50mg /k g by an organic complex precipitatin g agent..