Investigation of ion exchange in hydrofluoric acid solutions. Separation of RaD, RaE, and polonium

1964 ◽  
Vol 14 (5) ◽  
pp. 516-517 ◽  
Author(s):  
M. K. Nikitin ◽  
G. S. Katykhin
Keyword(s):  
Ion Exchange ◽  
Hydrofluoric Acid ◽  
Acid Solutions

Ion Exchange Equilibria and Stoichiometry of Complexes of Element 104 and Hafnium in Hydrofluoric Acid Solutions

1998 ◽  
Vol 80 (1) ◽  
Author(s):  
G. Pfrepper ◽  
R. Pfrepper ◽  
D. Krauss ◽  
A. B. Yakushev ◽  
S. N. Timokhin ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Hydrofluoric Acid ◽  
Acid Solutions

Extraction of hafnium(IV) with N-benzoyl-N-phenylhydroxylamine solutions from strongly acid solutions containing dimethyl sulphoxide or hexamethylphosphor triamine

1984 ◽  
Vol 49 (10) ◽  
pp. 2205-2209
Author(s):  
Jiří Příhoda ◽  
Alois Zeman
Keyword(s):  
Ion Exchange ◽  
Dimethyl Sulfoxide ◽  
Dimethyl Sulphoxide ◽  
Polar Phase ◽  
Acid Solutions ◽  
Extraction Mechanism

The extraction of hafnium(IV) with N-benzoyl-N-phenylhydroxylamine solutions in chloroform or toluene from strongly acid (HClO4) solutions of dimethyl sulfoxide or hexamethylphosphor triamide has been studied. These substances were found to suppress the conversion of the extraction mechanism from ion exchange to solvation: while in solutions free of these substances this conversion takes place at HClO4 concentrations of about 4 mol l-1, in the mixed aqueous-organic (polar) phase the requisite acid concentrations are considerably higher. The possible causes of this effect are discussed.

In Situ ATR−FTIR Analysis of Surfactant Adsorption onto Silicon from Buffered Hydrofluoric Acid Solutions

Langmuir ◽  
2000 ◽  
Vol 16 (8) ◽  
pp. 3636-3640 ◽  
Author(s):  
A. Marcia Almanza-Workman ◽  
Srini Raghavan ◽  
Roger P. Sperline
Keyword(s):  
Hydrofluoric Acid ◽  
Surfactant Adsorption ◽  
Acid Solutions ◽  
Ftir Analysis

Interaction of Lead-Silicate Glasses with Dilute Hydrofluoric Acid Solutions

2021 ◽  
Author(s):  
O. G. Ashkhotov ◽  
T. T. Magkoev ◽  
I. B. Ashkhotova
Keyword(s):  
Hydrofluoric Acid ◽  
Silicate Glasses ◽  
Lead Silicate ◽  
Acid Solutions

Recovery of Uranium from Phosphoric Acid Solutions Using Chelating Ion-Exchange Resins†

1998 ◽  
Vol 37 (5) ◽  
pp. 1983-1990 ◽  
Author(s):  
Nalan Kabay ◽  
Mustafa Demircioǧlu ◽  
Saniye Yaylı ◽  
Emre Günay ◽  
Mithat Yüksel ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Phosphoric Acid ◽  
Ion Exchange Resins ◽  
Acid Solutions ◽  
Exchange Resins
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