随着国家生产及科研需要,在钢铁冶炼过程中,采用更快速的分析方法,以控制稀土的残余含量,保证产品的需要。周宗祥等提出了110秒左右的高速分析,张传隆提出10分钟左右的快速测定,我们提出25～30分钟的快速测定。作为炉前控制,前者速度较高,但过氯酸与氯仿的废液需要及时处理。为 With the national production and scientific research needs, in the steel smelting process, the use of faster analysis methods to control the residual content of rare earth, to ensure product needs. Zhou Zongxiang and other proposed high-speed analysis of about 110 seconds, Zhang Chuanlong proposed rapid determination of about 10 minutes, we propose 25 to 30 minutes of rapid determination. As the front of the furnace control, the former speed is higher, but the perchloric acid and chloroform waste liquid needs timely treatment. for