scholarly journals Conceptual Design of a Simplified Skid-Mounted Caustic-Side Solvent Extraction Process for Removal of Cesium from Savannah Rive Site High-Level Waste

2004 ◽  
Author(s):  
JR.J.F. Birdwell
Keyword(s):  
Solvent Extraction ◽  
Conceptual Design ◽  
Extraction Process ◽  
High Level Waste ◽  
High Level

Demonstration Of The Caustic-side Solvent Extraction Process For The Removal Of137Cs From Savannah River Site High Level Waste

2003 ◽  
Vol 38 (12-13) ◽  
pp. 2647-2666 ◽  
Author(s):  
M. A. Norato ◽  
M. H. Beasley ◽  
S. G. Campbell ◽  
A. D. Coleman ◽  
M. W. Geeting ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Extraction Process ◽  
Savannah River Site ◽  
High Level Waste ◽  
Savannah River ◽  
High Level ◽  
River Site

INTEC High-Level Waste Studies Universal Solvent Extraction Feasibility Study

2000 ◽  
Author(s):  
J. Banaee ◽  
C. M. Barnes ◽  
T. Battisti ◽  
S. Herrmann ◽  
S. J. Losinski ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Feasibility Study ◽  
High Level Waste ◽  
High Level ◽  
Waste Studies

Understanding the recovery of Ruthenium from acidic feeds by oxidative solvent extraction studies

2019 ◽  
Vol 107 (5) ◽  
pp. 423-429 ◽  
Author(s):  
Parveen Kumar Verma ◽  
Rajesh Bhikaji Gujar ◽  
Prasanta Kumar Mohapatra
Keyword(s):  
Solvent Extraction ◽  
Fission Product ◽  
Fuel Cycle ◽  
Nuclear Fuel Cycle ◽  
High Level Waste ◽  
Trapping Mechanism ◽  
Nuclear Reprocessing ◽  
High Level ◽  
Trapping Agent ◽  
Simulated High Level Waste

Abstract Ruthenium (106Ru), a notorious fission product in nuclear reprocessing cycle, which gets partitioned at each step needs to be recovered. The recovery of Ru from acidic high level waste (HLW) is of great importance to the nuclear fuel cycle. Quantitative recovery of Ru was achieved from acidic feeds using oxidative trapping mechanism strategy where NaIO4 was used as an oxidant to convert different species of Ru in acidic phase to RuO4 while n-dodecane was used as trapping agent for RuO4. Stripping was attempted using NaOH and NaClO mixture. Attempt was made to optimize various parameters for 103Ru extraction and stripping. 103Ru tracer spiked simulated high level waste was used to understand the 103Ru behaviour in actual waste. The composition of stripping solution (alkaline hypochlorite) was also optimized to have >95% Ru into the aqueous phase in ca. 180 min.

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