THIRD PHASE FORMATION IN NITRIC ACID EXTRACTION BYn-OCTYL(PHENYL)-N,N-DIISOBUTYLCARBAMOYL-METHYLPHOSPHINE OXIDE
THIRD PHASE FORMATION IN NITRIC ACID EXTRACTION BYn-OCTYL(PHENYL)-N,N-DIISOBUTYLCARBAMOYL-METHYLPHOSPHINE OXIDE
复制标题
硝酸萃取中正辛基(苯基)-N,N-二异丁基氨基甲酰基-甲基氧化膦中第三相的形成
DOI：
10.1080/07366299408918219
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发表时间：
1994
影响因子：
2
通讯作者：
A. Suzuki
中科院分区：
文献类型：
--
作者：
S. Nagasaki;D. Wisnubroto;Y. Enokida;A. Suzuki
研究了N-辛基(苯基)-N，N-二异丁基氨基甲酰甲基氧化膦(CMPO)和三丁基磷酸酯(TBP)在硝酸萃取过程中第三相的形成与浓度和温度的关系。用气相色谱法测定了CMPO和TBP在第二相和第三相中的浓度分布。CMPO和TBP均在第三相中被富集。第二相和第三相的硝酸浓度与CMPO和TBP对硝酸的萃取平衡常数计算的浓度基本一致。还讨论了Np的提取与第三相形成。
ABSTRACT The third phase formation was studied as a function of n-octyl(phenyl)-N, N-diisobutylcarbamoylmethylphosphine oxide (CMPO) and tri-M-butyl phosphate (TBP) concentrations and temperature in the extraction of nitric acid. The concentration fractions of CMPO and TBP in the second and the third phases were determined by gas chromatography. Both CMPO and TBP were found to be enriched in the third phase. The concentrations of nitric acid in the second and the third phases relatively agreed with the calculated concentrations based on the extraction equilibrium constants of nitric acid by CMPO and TBP. The extraction of Np with the third phase formation was also discussed.