日本住友金属工业公司鹿岛钢铁厂最先研制成功了一种用苏打系熔剂使用铁水脱磷脱硫的技术。其具体工艺过程为:首先在高炉炉台或鱼雷混铁车中对跌水进行脱硅处理,将铁水的含硅量脱至等于或小于10％,而后扒除铁水中的脱硅渣,再采用喷射法向铁水中加苏打灰,其加量约为每吨铁水19Kg。铁水在预处理前的含磷量为0.10％, Japan’s Sumitomo Metal Industries Kashima steel plant first developed a successful use of soda flux melting hot metal dephosphorization desulfurization technology. The specific process is as follows: Firstly, the desalination treatment is carried out on the blast furnace platform or the torpedo mixing truck to remove the silicon content of the molten iron to 10% or less, and then remove the desiliconized slag in the molten iron, Spray method to add soda ash in the molten iron, the amount of about 19Kg per ton of hot metal. The molten iron content before pretreatment was 0.10%