Reductive Leaching of Indium-Bearing Zinc Leaching Residue in Sulfuric Acid and Sulfur Dioxide

2020 ◽  
pp. 369-378
Author(s):  
Zhi-gan Deng ◽  
Guang Fan ◽  
Chang Wei ◽  
Gang Fan ◽  
Min-ting Li ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Sulfur Dioxide ◽  
Reductive Leaching ◽  
Leaching Residue

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.

Mechanical Activation-Assisted Reductive Leaching of Cadmium from Zinc Neutral Leaching Residue Using Sulfur Dioxide

JOM ◽  
2015 ◽  
Vol 67 (12) ◽  
pp. 3010-3021 ◽  
Author(s):  
Chun Zhang ◽  
Xiaobo Min ◽  
Liyuan Chai ◽  
Jianqiang Zhang ◽  
Mi Wang
Keyword(s):  
Sulfur Dioxide ◽  
Mechanical Activation ◽  
Reductive Leaching ◽  
Leaching Residue

Reductive leaching of indium-bearing zinc ferrite in sulfuric acid using sulfur dioxide as a reductant

2019 ◽  
Vol 186 ◽  
pp. 192-199 ◽  
Author(s):  
Yangyang Fan ◽  
Yan Liu ◽  
Liping Niu ◽  
Tingle Jing ◽  
Weiguang Zhang ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Sulfur Dioxide ◽  
Zinc Ferrite ◽  
Reductive Leaching

Sulfuric acid vapor and sulfur dioxide in the atmosphere of Venus as observed by the Venus Express radio science experiment VeRa

Icarus ◽  
2021 ◽  
Vol 362 ◽  
pp. 114405
Author(s):  
J. Oschlisniok ◽  
B. Häusler ◽  
M. Pätzold ◽  
S. Tellmann ◽  
M.K. Bird ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Sulfur Dioxide ◽  
Acid Vapor ◽  
Radio Science ◽  
Venus Express ◽  
Atmosphere Of Venus
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