Chemistry Reference
In-Depth Information
tAbLe 1.4
Liquid-liquid extraction systems for separation of strontium and Cesium from Acid solutions
Category
targets
Process
extractants
Modiier
Diluent
Remarks
Crown ether, Calix-Crown
Single-element
extraction systems
Sr
SREX
0.15 M D
t
BuCH18C6
1.2-1.5 M TBP
Isopar L
Applied to real waste
at INL
Cs
CCCEX
0.062 M DOC[4]C6
1.5 M TBP
TPH
Tested with genuine
rafinate
Cs
CCCEX
0.1 M Calix R14
1 M MA2
TPH
Tested with genuine
rafinate
Cs
CSSX
0.01 M BOBCalixC6
0.5 M Cs-7SB
Isopar L
Caustic-side, effective
to acidic waste
Cs
Tsinghua U.
0.025 M
i
Pr-C[4]C6
—
n
-Octanol
Laboratory test
Cs
BARC
—
Nitrobenzene
Laboratory test
4.8 × 10
−3
M CC-C
Cs
ARTIST (Cs)
0.01 M DOC[4]C6
10 vol % DHOA
n
-Octanol
Laboratory test
others
Sr
ARTIST (Sr)
0.2 M TODGA
—
n
-Dodecane
Laboratory test
Crown ether, Calix-Crown
Multi-element
extraction systems
Sr, Cs
FPEX
0.075 M D
t
BuCH18C6-
0.007 M BOBCalixC6
0.75 M Cs-7SB
Isopar L
0.003 M trioctylamine
(TOA)
