1.前言 渣的碱度,在金属的火法冶炼特别是炼钢和炼铁工艺上是很重要的概念。它的重要性随着日益强调钢质量和要求钢中含有很低的残留元素如氧、氢、硫、磷等而日益提高。尽管如此,直到现在还没有完全满意的、可用来衡量渣碱度的方法。 传统的衡量渣碱度的方法是用不同的经验碱度指数。在这当中,最有用的是Bell等人提出的指数,或者是用某些过剩 1. Introduction The alkalinity of slag is a very important concept in pyrometallurgical processes, especially in steelmaking and ironmaking processes. Its importance increases with increasing emphasis on steel quality and the requirement that steels contain very low levels of residual elements such as oxygen, hydrogen, sulfur, phosphorus and the like. In spite of this, until now there is no completely satisfactory method for measuring slag basicity. The traditional way to measure slag basicity is to use different empirical alkalinity indices. Among these, the most useful is the index proposed by Bell et al., Or some excess