Solvent extraction of zinc from sulphate leaching solution of a sulphide-oxide sample using D2EHPA and Cyanex 272

2017 ◽  
Vol 39 (9) ◽  
pp. 1328-1334 ◽  
Author(s):  
Tahereh Asadi ◽  
Asghar Azizi ◽  
Jae-chun Lee ◽  
Mohammad Jahani
Keyword(s):  
Solvent Extraction ◽  
Cyanex 272 ◽  
Leaching Solution ◽  
Oxide Sample

scholarly journals A Process for the Separation of Noble Metals from HCl Liquor Containing Gold(III), Palladium(II), Platinum(IV), Rhodium(III), and Iridium(IV) by Solvent Extraction

Processes ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 243 ◽  
Author(s):  
Wei Dong Xing ◽  
Man Seung Lee
Keyword(s):  
Solvent Extraction ◽  
Metal Ions ◽  
Noble Metals ◽  
The Other ◽  
Secondary Resources ◽  
Cyanex 272 ◽  
Leaching Solution ◽  
Hcl Concentration ◽  
Hcl Solution ◽  
Excellent Chemical

The demand for noble metals is increasing, owing to their excellent chemical and physical properties. In order to meet the demand, the recovery of noble metals with high purity from diverse secondary resources, which contain small amounts of noble metals, is of immense value. In this work, the possibility of the separation of Au(III), Pd(II), Pt(IV), Rh(III), and Ir(IV) by solvent extraction from a synthetic HCl solution is investigated. Only Au(III) was selectively extracted by Cyanex 272 in the HCl concentration range from 0.5 M to 9 M, leaving the other metal ions in the raffinate. The loaded Au(III) in Cyanex 272 was efficiently stripped by (NH2)2CS. The other four noble metals were sequentially separated on the basis of the procedures reported in the previous work. The mass balance showed that about 98% of each metal, except Pt(IV), was recovered by the proposed process. An efficient process for the recovery of the five noble metal ions from the HCl leaching solution of secondary resources containing these metals can be developed.

Recovery of gallium from leach solutions of zinc refinery residues by stepwise solvent extraction with N235 and Cyanex 272

2021 ◽  
pp. 105722
Author(s):  
Kuifang Zhang ◽  
Lili Qiu ◽  
Jinzhang Tao ◽  
Xiaocong Zhong ◽  
Zhencong Lin ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Cyanex 272

scholarly journals Separation of Ag(I) by Ion Exchange and Cementation from a Raffinate Containing Ag(I), Ni(II) and Zn(II) and Traces of Cu(II) and Sn(II)

Processes ◽  
2018 ◽  
Vol 6 (8) ◽  
pp. 112 ◽  
Author(s):  
Wei Xing ◽  
Man Lee ◽  
Seung Choi
Keyword(s):  
Ascorbic Acid ◽  
Nitric Acid ◽  
Solvent Extraction ◽  
Ion Exchange ◽  
Anode Slime ◽  
Silver Particles ◽  
Copper Sheet ◽  
Agno3 Solution ◽  
Micron Size ◽  
Leaching Solution

Ion exchange and cementation experiments were done to separate silver(I) from a raffinate containing silver(I), nickel(II), and zinc(II) and small amounts of copper(II) and tin(II). The raffinate resulted from the recovery of gold(III), tin(II) and copper(II) by solvent extraction from a leaching solution of anode slime. Ion exchange with anionic resins was not effective in separating silver(I) because tin(II) and zinc(II) were selectively adsorbed into the anionic resins. It was possible to separate silver(I) by cementation with copper sheet. Treatment of the cemented silver with nitric acid solution increased the purity of silver(I) in the solution from 50.9% to 99.99%. Adjusting the pH of the AgNO3 solution to higher than 6, followed by adding ascorbic acid as a reducing agent, led to the synthesis of silver particles with micron size.

Purification of nickel from multicomponent aqueous sulfuric solutions by synergistic solvent extraction using Cyanex 272 and Versatic 10

2014 ◽  
Vol 150 ◽  
pp. 173-177 ◽  
Author(s):  
Alexandre Silva Guimarães ◽  
Priscila Siqueira da Silva ◽  
Marcelo Borges Mansur
Keyword(s):  
Solvent Extraction ◽  
Cyanex 272 ◽  
Synergistic Solvent Extraction

Structure investigation for nickel and cobalt complexes formed during solvent extraction with the extractants Cyanex 272, Versatic 10 and their mixtures

2021 ◽  
Vol 160 ◽  
pp. 106691
Author(s):  
Adriana Johanny Murcia Santanilla ◽  
Paula Aliprandini ◽  
Jaqueline Benvenuti ◽  
Jorge Alberto Soares Tenorio ◽  
Denise Crocce Romano Espinosa
Keyword(s):  
Solvent Extraction ◽  
Cobalt Complexes ◽  
Structure Investigation ◽  
Cyanex 272
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