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Problem associated with the use of TBP for LEM extraction of U(VI) and attempt to overcome this problem using other ligands

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Title Problem associated with the use of TBP for LEM extraction of U(VI) and attempt to overcome this problem using other ligands
 
Creator DAS, D
JUVEKAR, VA
BHATTACHARYA, R
 
Subject LIQUID EMULSION MEMBRANE
URANIUM EXTRACTION
TRIOCTYLPHOSPHINE OXIDE
PHOSPHORIC-ACID
RECOVERY
THORIUM
SYSTEM
U(VI)
TBP
TiAP
TEHP
TOPO
D2EHPA
TOA
Critical time
LEM
 
Description Suitability of TBP for recovery of uranium(VI) from dilute HNO3 using LEM extraction is investigated. TBP co-extracts significant amount of HNO3 along with U(VI). Beyond a critical time, extraction of U(VI) ceases due to attainment of critical acid level when the strip phase is unable to break TBP-U(VI) complex. The observed critical time is in good agreement with that estimated from rate of acid extraction. Optimal conditions at which the relative extraction of HNO3 is minimal with respect to U(VI) is arrived at. The extraction efficiency of TBP is compared with other ligands viz., TiAP, TEHP, TOPO, TOA and D2EHPA.
 
Publisher SPRINGER
 
Date 2016-01-14T12:12:21Z
2016-01-14T12:12:21Z
2015
 
Type Article
 
Identifier JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 304(3)1027-1042
0236-5731
1588-2780
http://dx.doi.org/10.1007/s10967-014-3918-z
http://dspace.library.iitb.ac.in/jspui/handle/100/17466
 
Language en