加氢裂化装置废旧催化剂中铁含量分析

Analysis of the Content of Iron in the Used Catalyst of Hydrocracker

在酸性条件下,以磺基水杨酸为指示剂,用EDTA络合滴定方法,可准确测定出加氢裂化装置废旧催化剂中铁含量。样品中S、Co、Mo等离子对测定无干扰。方法回收率在98.6%～101.2%,RSD为1.28%。

Under the acid condition, sulfosalicylic acid as the indicator, the content of iron in the used catalyst of hydrocracker can be accurately determined by the EDTA compleximetry. S, Co, Mo iron and so on in the sample didn＇ t disturbed the determination. The recovery of the test was in the range of 98.6 % ～ 101.2 % and RSD was 1.28 %.