SORPTION BEHAVIOR OF PERTECHNETATE ION ON REILLEXTM-HPQ ANION EXCHANGE RESIN FROM HANFORD AND MELTON VALLEY TANK WASTE SIMULANTS AND SODIUM HYDROXIDE/SODIUM NITRATE SOLUTIONS

1998 ◽  
Vol 16 (3) ◽  
pp. 843-859 ◽  
Author(s):  
Kenneth R. Ashley ◽  
Glenn D. Whitener ◽  
Norman C. Schroeder ◽  
Jason R. Ball ◽  
Susan D. Radzinski
Keyword(s):  
Sodium Hydroxide ◽  
Anion Exchange ◽  
Sodium Nitrate ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Sorption Behavior ◽  
Nitrate Solutions ◽  
Tank Waste

Sorption behavior and mechanism investigation of formic acid removal by sorption using an anion-exchange resin

2014 ◽  
pp. 1-16 ◽  
Author(s):  
Xiaoqing Lin ◽  
Lian Xiong ◽  
Chao Huang ◽  
Xiaoyan Yang ◽  
Haijun Guo ◽  
...  
Keyword(s):  
Formic Acid ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Sorption Behavior

SORPTION BEHAVIOR OF PERTECHNETATE ON REILLEX(tm)-HPQ ANION EXCHANGE RESIN FROM NITRIC ACID SOLUTION

1994 ◽  
Vol 12 (2) ◽  
pp. 239-259 ◽  
Author(s):  
Kenneth R. Ashley ◽  
Jason R. Ball ◽  
Anthony B. Pinkerton ◽  
Kent D. Abney ◽  
C. Norman
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Anion Exchange ◽  
Nitric Acid Solution ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Sorption Behavior

scholarly journals Sorption of rare earth coordination compounds

2020 ◽  
Vol 244 ◽  
pp. 474-481
Author(s):  
Olga Cheremisina ◽  
Elizaveta Cheremisina ◽  
Maria Ponomareva ◽  
Аleksander Fedorov
Keyword(s):  
Rare Earth ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Coordination Compounds ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Equilibrium Constants ◽  
Mass Action ◽  
Dynamic Capacity ◽  
Nitrate Solutions

Rare earth elements (REEs) are valuable and strategically important in many high-technology areas, such as laser technology, pharmacy and metallurgy. The main methods of REE recovery are precipitation, extraction and sorption, in particular ion exchange using various sorbents, which allow to perform selective recovery and removal of associated components, as well as to separate rare earth metals with similar chemical properties. The paper examines recovery of ytterbium in the form of coordination compounds with Trilon B on weakly basic anion exchange resin D-403 from nitrate solutions. In order to estimate thermodynamic sorption parameters of ytterbium anionic complexes, ion exchange process was carried out from model solutions under constant ionic strength specified by NaNO3, optimal liquid to solid ratio, pH level, temperatures 298 and 343 K by variable concentrations method. Description of thermodynamic equilibrium was made using mass action law formulated for ion exchange equation and mathematically converted to linear form. Values of equilibrium constants, Gibbs free energy, enthalpy and entropy of the sorption process have been calculated. Basing on calculated values of Gibbs energy, a sorption series of complex REE ions with Trilon B was obtained over anion exchange resin D-403 from nitrate solutions at temperature 298 K. Sorption characteristics of anion exchange resin have been estimated: total capacity, limiting sorption of complex ions, total dynamic capacity and breakthrough dynamic capacity.

Sorption Behavior of Uranium onto Reillex™-HPQ Anion Exchange Resin from Nitric and Hydrochloric Acid Solutions

1995 ◽  
pp. 209-223 ◽  
Author(s):  
Kent D. Abney ◽  
Anthony B. Pinkerton ◽  
Richard C. Staroski ◽  
Norman C. Schroeder ◽  
Kenneth R. Ashley ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Anion Exchange ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Sorption Behavior ◽  
Acid Solutions ◽  
Hydrochloric Acid Solutions

SORPTION BEHAVIOR OF PERRHENATE AND OXOCHROMIUM(VI) ON REILLEX™-HPQ ANION EXCHANGE RESIN FROM NITRIC ACID SOLUTION

1995 ◽  
Vol 13 (2) ◽  
pp. 353-368 ◽  
Author(s):  
Kenneth R. Ashley ◽  
Stephen L. Cobb ◽  
Jason R. Ball ◽  
Kent D. Abney ◽  
Norman C. Schroeder
Keyword(s):  
Nitric Acid ◽  
Acid Solution ◽  
Anion Exchange ◽  
Nitric Acid Solution ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Sorption Behavior
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