Solvent extraction separation of zinc and cadmium from nickel and cobalt using Aliquat 336, a strong base anion exchanger, in the chloride and thiocyanate forms

2000 ◽  
Vol 57 (3) ◽  
pp. 235-252 ◽  
Author(s):  
Berend Wassink ◽  
David Dreisinger ◽  
Jane Howard
Keyword(s):  
Solvent Extraction ◽  
Anion Exchanger ◽  
Aliquat 336 ◽  
Strong Base ◽  
Extraction Separation

scholarly journals Two-Step Solvent Extraction of Radioactive Elements and Rare Earths from Estonian Phosphorite Ore Using Nitrated Aliquat 336 and Bis(2-ethylhexyl) Phosphate

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 388
Author(s):  
Silvester Jürjo ◽  
Liis Siinor ◽  
Carolin Siimenson ◽  
Päärn Paiste ◽  
Enn Lust
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Rare Earth Elements ◽  
Toxic Elements ◽  
Downstream Processing ◽  
Liquid Extraction ◽  
Aliquat 336 ◽  
Radioactive Elements ◽  
Improved Method ◽  
Ph Values

Estonian phosphorite ore contains trace amounts of rare earth elements (REEs), many other d-metals, and some radioactive elements. Rare earth elements, Mo, V, etc. might be economically exploitable, while some radioactive and toxic elements should be removed before any other downstream processing for environmental and nutritional safety reasons. All untreated hazardous elements remain in landfilled waste in much higher concentration than they occur naturally. To resolve this problem U, Th, and Tl were removed from phosphorite ore at first using liquid extraction. In the next step, REE were isolated from raffinate. Nitrated Aliquat 336 (A336[NO3]) and Bis(2-ethylhexyl) Phosphate (D2EHPA) were used in liquid extraction for comparison. An improved method for exclusive separation of radioactive elements and REEs from phosphorite ore in 2-steps has been developed, exploiting liquid extraction at different pH values.

scholarly journals Sorption of chromium (VI) from electroplating rinse water by strong base anion exchanger: equilibrium and kinetic studies

2021 ◽  
Vol 1913 (1) ◽  
pp. 012076
Author(s):  
Prasanna S Koujalagi ◽  
Harish N Revankar ◽  
Raviraj M Kulkarni ◽  
Vijayendra R Gurjar
Keyword(s):  
Anion Exchanger ◽  
Kinetic Studies ◽  
Strong Base ◽  
Chromium Vi ◽  
Rinse Water

Solvent extraction separation of uranium(VI) with dibenzo-24-crown-8

1993 ◽  
Vol 170 (1) ◽  
pp. 215-224 ◽  
Author(s):  
B. S. Mohite ◽  
J. M. Patil ◽  
D. N. Zambare
Keyword(s):  
Solvent Extraction ◽  
Extraction Separation

Solvent extraction, separation of uranium (VI) with crown ether

2000 ◽  
Vol 20 (2-3) ◽  
pp. 177-183 ◽  
Author(s):  
Yadvendra K Agrawal ◽  
Pranav Shrivastav ◽  
Shobhana K Menon
Keyword(s):  
Solvent Extraction ◽  
Crown Ether ◽  
Extraction Separation
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