核化学与放射化学Issue(2)：75-79,5.DOI:10.7538/hhx.2014.36.02.0075
二氯苯基二硫代膦酸对Pu（Ⅲ）的萃取行为
Extraction Behavior of Pu(Ⅲ)by Di(chlorophenyl)dithiophosphinic Acid
李琳 1党海军 1许启初 1张继红1
作者信息
- 1. 西北核技术研究所，陕西 西安 710024
- 折叠
摘要
Abstract
Extraction behavior of Pu(Ⅲ)from HNO3 solution of low concentration with di-(chlorophenyl)-dithiophosphinic acid(DCPDTPA)in toluene was studied.The distribution ratios of Pu(Ⅲ)were determined as function of extraction time,pH of the aqueous phase, the concentration of NaNO3 ,concentration of DCPDTPA as well as the ambient tempera-ture.The composition of the extraction complex and the extraction reaction equation are discussed,suggesting that the extraction is mainly a cation exchange process,which is exothermic with the extraction enthalpy of (-1 1.7 ± 0.7 )kJ/mol and an equilibrium constant of (0.18±0.03)L/mol at 298 K.关键词
二氯苯基二硫代膦酸/萃取/Pu(Ⅲ)Key words
di(chlorophenyl)dithiophosphinic acid/extraction/Pu(Ⅲ)分类
能源科技引用本文复制引用
李琳,党海军,许启初,张继红..二氯苯基二硫代膦酸对Pu（Ⅲ）的萃取行为[J].核化学与放射化学,2014,(2):75-79,5.
