CAJ | 학술논문

研究了Pd/C催化剂及其冶金废料分解和测定的问题。预先灼烧试样除去碳等杂质，再用焦硫酸钾熔解，溶解处理后分别以络合滴定法和分光光度法测定Pd。灼烧损失空白Pd/C加标回收率为99.4%~100.5%，证明试样预先灼烧未引起Pd的损失。结果表明：对于Pd含量高达xx%的样品，尽管试样组成复杂也应采用丁二肟沉淀分离滴定法进行测定；对于Pd含量＜5%的样品，无论试样组成简单或复杂均应采用操作简便的光度法。
연구료Pd/C최화제급기야금폐료분해화측정적문제。예선작소시양제거탄등잡질，재용초류산갑용해，용해처리후분별이락합적정법화분광광도법측정Pd。작소손실공백Pd/C가표회수솔위99.4%~100.5%，증명시양예선작소미인기Pd적손실。결과표명：대우Pd함량고체xx%적양품，진관시양조성복잡야응채용정이우침정분리적정법진행측정；대우Pd함량＜5%적양품，무론시양조성간단혹복잡균응채용조작간편적광도법。
The problem of decomposing Pd/C catalyst and its metallurgical waste materials, and determining of Pd content in them were discussed. These samples were ignited previously in order to remove carbon and other impurities, and then melted further by using potassium pyrosulfate. After that, the Pd content in them were determined by using complexometric titration and spectrophotometry, respectively. For the blank samples of Pd/C which had been ignited, the recovery of standard addition was between 99.4%~100.5%. It proved that palladium in these samples was not lost by igniting previously. The research results indicated that when these samples of Pd content abovexx%, even if the composition of samples were complex, the method for determination of Pd should also select butanedione dioxime precipitation titration. But for samples of Pd content below 5%, regardless of the specimen composed of simple or complex by spectrophotometry and easy operation.