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EXTRACTION OF U(VI), TH(IV) AND SOME FISSION-PRODUCTS FROM NITRIC-ACID BY N,N-DISUBSTITUTED AMIDES AND EFFECT OF GAMMA-RAY IRRADIATION ON THE EXTRACTION
BAO, BR(包伯荣); SHEN, CH; BAO, YZ; WANG, GD; QIAN, J; CAO, ZB
1994
Source PublicationJOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES
ISSN0236-5731
Volume178Issue:1
AbstractIn this work, ten disubstituted amides have been synthesized and the extracting ability for U and Th fission products (mainly Zr, Nb and Ru) and the tendency of third phase formation have been studied. From the preliminary studies, two disubstituted amides, N-octylcaprolactam (OCLA) and N-(2-ethyl) hexylcaprolactam (EHCLA) were chosen for further studies. All studies were compared with those obtained by using TBP under exactly the same conditions. The dependence of aqueous nitric acid concentration, extractant concentration, temperature, gamma-ray irradiation on extraction of Th. U and some fission products were studied. Back extraction of Th and U from organic phases and third phase formation were also studied. The studies of the reaction mechanism indicate that Th and U am extracted as disolvates, whereas HNO3 is extracted as monosolvate. Extraction distribution of Th and U decrease with increase of temperature, indicating the extraction reaction to be exothermic. Preliminary studies show that OCLA and EHCLA have better gamma-irradiation stabilities compared with TBP.
Indexed BySCI
Language英语
Funding Project原子核所项目组
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/12944
Collection中科院上海原子核所2003年前
Recommended Citation
GB/T 7714
BAO, BR,SHEN, CH,BAO, YZ,et al. EXTRACTION OF U(VI), TH(IV) AND SOME FISSION-PRODUCTS FROM NITRIC-ACID BY N,N-DISUBSTITUTED AMIDES AND EFFECT OF GAMMA-RAY IRRADIATION ON THE EXTRACTION[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES,1994,178(1).
APA BAO, BR,SHEN, CH,BAO, YZ,WANG, GD,QIAN, J,&CAO, ZB.(1994).EXTRACTION OF U(VI), TH(IV) AND SOME FISSION-PRODUCTS FROM NITRIC-ACID BY N,N-DISUBSTITUTED AMIDES AND EFFECT OF GAMMA-RAY IRRADIATION ON THE EXTRACTION.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES,178(1).
MLA BAO, BR,et al."EXTRACTION OF U(VI), TH(IV) AND SOME FISSION-PRODUCTS FROM NITRIC-ACID BY N,N-DISUBSTITUTED AMIDES AND EFFECT OF GAMMA-RAY IRRADIATION ON THE EXTRACTION".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES 178.1(1994).
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