scholarly journals Solvent Extraction Behavior of Metal Ions with Calixarene Derivatives by Using a Microreactor

2014 ◽  
Vol 21 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Masatoshi MAEKI ◽  
Yuta HATANAKA ◽  
Kenichi YAMASHITA ◽  
Masaya MIYAZAKI ◽  
Keisuke OHTO
Keyword(s):  
Solvent Extraction ◽  
Metal Ions ◽  
Extraction Behavior

scholarly journals Extraction behavior of Cr(VI) and coexistence with interfering ions by trialkylamine

2015 ◽  
Vol 5 (4) ◽  
pp. 494-504 ◽  
Author(s):  
Yingxue Li ◽  
Chongwei Cui
Keyword(s):  
Solvent Extraction ◽  
Metal Ions ◽  
Tertiary Amine ◽  
Hollow Fiber ◽  
Inorganic Phosphorus ◽  
Bonding Force ◽  
Adsorption Sites ◽  
Chromium Vi ◽  
Extraction Behavior ◽  
Interfering Ions

Solvent extraction of chromium(VI) with trialkylamine (N235) using kerosene/n-heptane as the diluent was investigated. The basic conditions for Cr(VI) extraction have been explored, and the influence of coexisting contaminants on extraction has been evaluated. The results indicated that the separation of Cr(VI) could be realized with N235, and the recovery rate could be increased by adding organophosphorus-tributyl phosphate as the modifier due to the strong bonding force of synergistic extraction. However, the inorganic phosphorus could inhibit the chemical reaction between tertiary amine and Cr(VI) ions owning to the competition of the limited adsorption sites. Besides, inorganic anions such as massive SO42− and NO3− could inhibit extraction of metal ions because of competition coordination. In addition, the separation of Cr(VI) from coexisting metal ions could be achieved with trialkylamine except Fe2+ due to its reducibility. Based on the results, the feasibility of pseudo-emulsion based hollow fiber strip dispersion used for separation and recovery of Cr(VI) has been evaluated, and the transport properties of Cr(VI) and coexistence with interfering ions have been explored.

Solvent extraction behavior of trivalent metal ions in diglycolamides having same carbon to oxygen ratio

2015 ◽  
Vol 51 (1) ◽  
pp. 32-40 ◽  
Author(s):  
Jammu Ravi ◽  
K. A. Venkatesan ◽  
M. P. Antony ◽  
T. G. Srinivasan ◽  
P. R. Vasudeva Rao
Keyword(s):  
Solvent Extraction ◽  
Metal Ions ◽  
Trivalent Metal ◽  
Extraction Behavior ◽  
Trivalent Metal Ions ◽  
Oxygen Ratio
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