Solvent extraction of lanthanides and yttrium from nitrate medium with CYANEX 925 in heptane

2007 ◽  
Vol 82 (4) ◽  
pp. 376-381 ◽  
Author(s):  
Wei Li ◽  
Xianglan Wang ◽  
Hui Zhang ◽  
Shulan Meng ◽  
Deqian Li
Keyword(s):  
Solvent Extraction ◽  
Nitrate Medium

Solvent extraction of europium(III) from nitrate medium with 4-acyl-isoxazol-5-ones and 4-acyl-5-hydroxy-pyrazoles. Effect of salts and diluents

2006 ◽  
Vol 82 (1-2) ◽  
pp. 100-109 ◽  
Author(s):  
Jaouad Arichi ◽  
Geneviève Goetz-Grandmont ◽  
Jean Pierre Brunette
Keyword(s):  
Solvent Extraction ◽  
Nitrate Medium

Solvent extraction of neodymium(III) from acidic nitrate medium using Cyanex 921 in kerosene

2012 ◽  
Vol 30 (8) ◽  
pp. 794-797 ◽  
Author(s):  
Nandita Panda ◽  
Niharbala Devi ◽  
Sujata Mishra
Keyword(s):  
Solvent Extraction ◽  
Nitrate Medium ◽  
Cyanex 921

Study of the Solvent Extraction of V(V) from Nitrate Medium by Tri-n-Octylamine Dissolved in Kerosene

JOM ◽  
2017 ◽  
Vol 69 (10) ◽  
pp. 1945-1949
Author(s):  
Ranjit Kumar Biswas ◽  
Aneek Krishna Karmakar ◽  
Mohammad Mottakin
Keyword(s):  
Solvent Extraction ◽  
Nitrate Medium

scholarly journals Spectrophotometric study of Solvent extraction of Pb (II) and Cd (II) by aminooctyldiphosphonic acid

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 1140
Author(s):  
IKHOU Djamila ◽  
M'hamed Kaid ◽  
ZIANI Hanane ◽  
Didier Villemein
Keyword(s):  
Solvent Extraction ◽  
Metal Ion ◽  
Synergetic Effect ◽  
Volume Ratio ◽  
Chelating Agent ◽  
Spectrophotometric Study ◽  
Molar Ratio ◽  
Metallic Ions ◽  
Nitrate Medium ◽  
Cadmium And Lead

This study has investigated the solvent extraction of cadmium and lead ions from an aqueous solution in nitrate medium using aminooctyldiphosphonic acid (AODPA) as extractant in chloroform. In order to establish spectrophotometrically the concentration of metal ion in the aqueous phase before and after extraction, the Arsenazo III method was used. The effects of several extraction parameters on the extraction of these metals ions  including volume ratio between the aqueous and organic phases (1–5), extraction kinetic time (0–30 min), molar ratio Q (1–5), addition of HNO3 (pH =2–6), addition of KNO3 (0.01 – 1M), temperature (10–40°C) and the synergetic effect by adding TOPO (solvating agent) were evaluated. Thermodynamic parameters including the Gibbs free energy (ΔG0),enthalpy (ΔH0), and entropy (ΔS0) were calculated. Performed experiments showed that Pb (II) can be extracted till 73% when Cd (II) can be recovered completely after two cycles. The extraction of both metallic ions was spontaneous, endothermic and with a slight randomness.  Positive synergetic effect was observed at  a chelating agent/TOPO ratio of 3. It is a very encouraging result which can lead us to recover cadmium and lower the concentration of lead from wastewater.

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