Reductive leaching of indium from zinc-leached residue using galena as reductant

2021 ◽  
Vol 163 ◽  
pp. 106777
Author(s):  
Yangyang Fan ◽  
Yan Liu ◽  
Liping Niu ◽  
Weiguang Zhang ◽  
Zimu Zhang
Keyword(s):  
Reductive Leaching

Reductive leaching of zinc, cobalt and manganese from zinc plant residue

2016 ◽  
Vol 161 ◽  
pp. 185-192 ◽  
Author(s):  
A. Fattahi ◽  
F. Rashchi ◽  
E. Abkhoshk
Keyword(s):  
Plant Residue ◽  
Zinc Plant ◽  
Reductive Leaching

scholarly journals Selective Recovery of Manganese from Anode Sludge Residue by Reductive Leaching

2020 ◽  
Vol 4 (2) ◽  
pp. 40
Author(s):  
Toni Kauppinen ◽  
Tuomas Vielma ◽  
Justin Salminen ◽  
Ulla Lassi
Keyword(s):  
Hydrogen Peroxide ◽  
Sulfuric Acid ◽  
High Selectivity ◽  
Sulfate Solution ◽  
Correct Choice ◽  
Manganese Sulfate ◽  
Solid Residue ◽  
Reductive Leaching ◽  
Novel Method ◽  
Leaching Residue

Manganese-containing anode sludge is a common side-product in the electrowinning of zinc. The anode sludge consists mainly of oxidized manganese, but also lesser amounts of lead, calcium, and other minor metals. The impurities present in the anode sludge mandate new recycling strategies for its efficient use. This work demonstrates a novel method for selective manganese recovery from lead- and calcium-bearing manganese oxide solid residue. Leaching with sulfuric acid in the presence of a selected reducing agent, such as hydrogen peroxide or citric acid, yields a concentrated MnSO4 solution with high selectivity over calcium and lead. Manganese yields up to 98% can be obtained. Minimization of calcium and lead in final manganese product can be accomplished with the correct choice of leaching conditions. Alongside manganese sulfate solution, leaching residue with high content of lead and silver was also formed.

Reductive leaching of indium-bearing zinc residue in sulfuric acid using sphalerite concentrate as reductant

2016 ◽  
Vol 161 ◽  
pp. 102-106 ◽  
Author(s):  
Fan Zhang ◽  
Chang Wei ◽  
Zhigan Deng ◽  
Xingbin Li ◽  
Cunxiong Li ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Reductive Leaching
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