Initial Investigation into the Leaching of Manganese from Nodules at Room Temperature with the Use of Sulfuric Acid and the Addition of Foundry Slag-Part I

被引：24

作者：

Toro, Norman ^{[1
]}

Herrera, Nelson ^{[1
]}

Castillo, Jonathan ^{[2
]}

Torres, Cynthia M. ^{[1
]}

Sepulveda, Rossana ^{[2
]}

机构：

[1] Univ Catolica Norte, Dept Ingn Met & Minas, Antofagasta 1270709, Chile

[2] Univ Atacama, Dept Ingn Met, Copiapo 1531772, Chile

来源：

MINERALS | 2018年 / 8卷 / 12期

关键词：

manganese nodules; leaching; secondary mining; slag; DILUTE HCL; INDIAN-OCEAN; DISSOLUTION; PYROLUSITE; REDUCTION; KINETICS; METALS; BEHAVIOR; OXIDES; PYRITE;

D O I：

10.3390/min8120565

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In this study, the surface optimization methodology was used to assess the effect of three independent variables-time, particle size and sulfuric acid concentration-on Mn extraction from marine nodules during leaching with H2SO4 in the presence of foundry slag. The effect of the MnO2/Fe ratio and particle size (MnO2) was also investigated. The maximum Mn extraction rate was obtained when a MnO2 to Fe molar ratio of 0.5, 1 M of H2SO4, -320 + 400 Tyler mesh (-47 + 38 mu m) nodule particle size and a leaching time of 30 min were used.

引用

页数：13

共 16 条

[1] Initial investigation into the leaching of manganese from nodules at room temperature with the use of sulfuric acid and the addition of foundry slag-Part II
Perez, Kevin
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Toro, Norman
SEPARATION SCIENCE AND TECHNOLOGY, 2021, 56 (02) : 389 - 394
[2] Leaching of Manganese from Marine Nodules at Room Temperature with the Use of Sulfuric Acid and the Addition of Tailings
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Saldana, Manuel
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MINERALS, 2019, 9 (05):
[3] LEACHING OF COPPER, NICKEL AND COBALT FROM MANGANESE NODULES WITH SULFURIC-ACID
ITO, H
NOGI, A
OKUWAKI, A
OKABE, T
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[4] Leaching Manganese Nodules in an Acid Medium and Room Temperature Comparing the Use of Different Fe Reducing Agents
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[5] Kinetics and mechanism of manganese reductive leaching from electrolytic manganese anode slag with elemental sulfur in sulfuric acid solution
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[6] STUDIES ON HYDROMETALLURGY OF MANGANESE NODULES .3. SULFURIC-ACID LEACHING OF HEAVY-METALS FROM COARSELY CRUSHED MANGANESE NODULES, AND KINETICS OF COPPER AND NICKEL LEACHING
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TATSURUHAMA, K
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OKUWAKI, A
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[7] Leaching Manganese Nodules in an Acid Medium and Room Temperature Comparing the Use of Different Fe Reducing Agents (vol 9, 1316, 2019)
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