稀土金属由于与氧、硫的亲和力强而被用作良好的脱氧剂和脱硫剂。为了弄清稀土在钢中存在的形态和数量,本文着重研究了用电化学和化学方法定量分离和测定各相中稀土含量的条件,对是否存在固溶稀土进行了探讨,并用合成稀土化合物作了校验。试验结果证实了我们提出的稀土硫化物与稀土硫氧化物的分离分析方法是可靠的。 Rare earth metals are used as good deoxidizers and desulfurizers due to their strong affinity for oxygen and sulfur. In order to understand the morphology and quantity of rare earths present in steel, this paper focuses on the quantitative separation and determination of rare earth content in each phase by using electrochemical and chemical methods, discusses the existence of solid solution rare earths, and uses synthetic rare earth compounds Checked The test results confirm that the separation analysis method of rare earth sulfide and rare earth sulfur oxide proposed by us is reliable.