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以 40 %辛醇 煤油为稀释剂 ,研究了三种荚醚 :N ,N ,N’ ,N’ 四丁基 3 氧 戊二酰胺(TBOPDA)、N ,N ,N’ ,N’ 四异丁基 3 氧 戊二酰胺 (TiBOPDA)和N ,N ,N’ ,N’ 四丁基 3,6 二氧 辛二酰胺 (TBDOODA)在硝酸介质中对Am(Ⅲ )和Eu(Ⅲ )的萃取行为 ,确定了萃合物的组成和萃取反应方程式。通过测量萃取金属离子后有机相的电离度可知 ,荚醚与镅和铕没有生成离子型萃合物 ,从而间接证明荚醚对镅或铕的萃取是中性配合萃取。有机相反萃实验表明 :用稀硝酸或水反萃 3次 ,可以定量反萃镅和铕。
Using 40% octanol kerosene as diluent, three kinds of pod ethers were studied: TBOPDA, N, N, N ’, N’ tetraisobutyl Extraction of Am (Ⅲ) and Eu (Ⅲ) with Nitrate, N, N, N ’, N’ Tetrabutyl 3,6 Dioxooctanediamide (TBDOODA) , Determine the composition of the extraction and extraction reaction equation. By measuring the degree of ionization of the organic phase after extracting the metal ions, it was found that there was no ion-type complex formed by podole and acenaphthene and europium, which indirectly proves that the extract of podded ether or anthracene is neutral complexed extraction. Organic phase extraction experiments showed that: with dilute nitric acid or water back-extraction three times, you can quantify the back-extraction and europium.