Selective Separation and Extraction of Vanadium(IV) and Manganese(II) from Co-leaching Solution of Roasted Stone Coal and Pyrolusite via Solvent Extraction

2013 ◽  
Vol 52 (38) ◽  
pp. 13768-13776 ◽  
Author(s):  
Zhenlei Cai ◽  
Yali Feng ◽  
Haoran Li ◽  
Yuzhao Zhou
Keyword(s):  
Solvent Extraction ◽  
Selective Separation ◽  
Stone Coal ◽  
Leaching Solution

Synergistic solvent extraction of vanadium from leaching solution of stone coal using D2EHPA and PC88A

2017 ◽  
Vol 181 ◽  
pp. 1-7 ◽  
Author(s):  
Qihua Shi ◽  
Yimin Zhang ◽  
Jing Huang ◽  
Tao Liu ◽  
Hong Liu ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Stone Coal ◽  
Leaching Solution ◽  
Synergistic Solvent Extraction

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.

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