长期来对某些铁合金中铝的分析,普遍采用过氧化钠熔融,或先用酸溶解后过滤,将残渣在铂金坩埚内加焦硫酸钾熔融,浸出,与主液合并进行分析。这样测得的是总铝,包括金属铝,三氧二铝。从分析的角度讲是比较正确的,但从配料炼钢的角度讲是不合理的。铁合金主要用干炼钢,配入铝的目的是在炼钢过 Long-term analysis of some ferroalloy aluminum, sodium peroxide commonly used melting, or after first dissolved with acid filtration, the residue in the platinum crucible plus potassium sulfate melting, leaching, combined with the analysis of the main liquid. This measured total aluminum, including aluminum metal, aluminum trioxide. From the analysis point of view is more correct, but from the point of view of ingredients steelmaking is unreasonable. Ferroalloy is mainly used in steelmaking, and the purpose of blending with aluminum is in steelmaking