PARTITIONING OF ACTINIDES AND FISSION PRODUCTS IN HIGHLY-ACTIVE RAFFIN ATE FROM PUREX PROCESS BY MIXER-SETTLERS
PARTITIONING OF ACTINIDES AND FISSION PRODUCTS IN HIGHLY-ACTIVE RAFFIN ATE FROM PUREX PROCESS BY MIXER-SETTLERS
复制标题
通过混合沉降器对来自 PUREX 工艺的高活性萃余液中的锕系元素和裂变产物进行分配
DOI：
10.1080/07366299208918138
复制
发表时间：
1992
影响因子：
2
通讯作者：
K. Onishi
中科院分区：
文献类型：
--
作者：
M. Ozawa;S. Nemoto;A. Togashi;T. Kawata;K. Onishi
ABSTRACT Batch, and counter-current flowsheet tests using mixer-settlers have been carried out in the chemical processing facility (CPF), Tokai-works, PNC. Counter-current experiments aim to provide the data for prediction of the Truex process applicability in actinides partitioning in high level liquid waste (HLLW) from die Purex process. Real highly-active (HA) raffinate from FBR spent fuel reprocessing experiments were used in these runs without adjusting the acidity. A mixed solvent composed of 0.2M CMPO in the purex solvent was employed as a Truex solvent. Although very reasonable extraction behaviors for actinides and rare earth elements were observed based on the results of batchwise distribution studies, some noteworthy behaviors for ruthenium were recognized; The rare earths and some fraction of ruthenium were coextracted to the actinides stream. Although they were stripped out by dilute nitric acid as expected, plutonium and some of ruthenium also remained in the organic phase during the strippi...
