火焰原子吸收法测定连铸保护渣中的氧化钠,氧化锂

Determination of Lithium Oxide and Sodium Oxidein Powders Used in Continuous Castingby Means of FAAS Method

本文提出用火焰原子吸收法(FAAS法)直接测定熔融型连铸颗粒保护渣中的氧化钠和氧化锂的含量。对仪器的最佳工作条件及其溶液介质、共存元素的影响进行了试验研究。本方法可应用于测定连铸颗粒保护渣、炼钢用复合渣等同类型材料中含量为1％～15％的氧化钠及含量为0.1％～5％的氧化锂的分析。

This article describes the use of FAAS method in directly determining the content of lithi-um oxide and sodium oxide in continuous casting paniculate powders in molten form Experimental study has been carried out on the optimum operating condition of the instrument and effect of solution medium and co -existing elements. This method can be used in determining sodium oxide content ranging from 1% to 15% and lithium oxide content ranging from 0. 1% to 5% contained in continuous casting paniculate powders,steel -making composite slag and the material of the same type.