Affiliation:
1. Chemistry Group, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, India
Abstract
Abstract
Batch extraction of U(VI) by 1.1 M solution of tri-iso-amyl phosphate (TiAP)
in n-dodecane (n-DD) from uranyl nitrate solutions in nitric acid media has been investigated as
a function of metal loading and equilibrium aqueous phase acidity at 303 K. A method
adopted for free acidity determination by using a mixture of potassium oxalate and sodium fluoride
for complexing U(VI) has been validated by comparing the data generated in the present study with
literature data available for tri-n-butyl phosphate (TBP) under identical conditions. Extraction
and stripping behaviour of 1.1 M TiAP/n-DD-U(VI)/HNO3 and 1.1 M
TBP/n-DD-U(VI)/HNO3 systems have been compared by carrying out extraction, scrubbing and
a series of stripping in cross-current mode. Stripping behaviour of both the solvents loaded with
U(VI) and HNO3 has also been investigated as a function of time to understand the effects of
nitric acid induced degradation on stripping.
Subject
Physical and Theoretical Chemistry
Cited by
20 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献