PDF

Leaching Manganese Nodules in an Acid Me

David Torres, Luís Ayala

2026enmanganeseleachingreducing agentsANOVAdissolution

Abstract

Language:

The deposits of Fe-Mn, in the seabed of the planet, are a good alternative source for the extraction of elements of interest. Among these are marine nodules, which have approximately 24% manganese and may be a solution to the shortage of high-grade ores on the surface. In this investigation, an ANOVA analysis was performed to evaluate the time independent variables and MnO2/reducing agent in the leaching of manganese nodules with the use of different Fe reducing agents (FeS2, Fe2+, Fe0 and Fe2O3). Tests were also carried out for the different reducing agents evaluating the MnO2/Fe ratio, in which the Fe0 (FeC) proved to be the best reducing agent for the dissolution of Mn from marine nodules, achieving solutions of 97% in 20 min. In addition, it was discovered that at low MnO2/Fe ratios the acid concentration in the system is not very relevant and the potential and pH were in ranges of −0.4–1.4 V and −2.0–0.1 favoring the dissolution of Mn from MnO2.

Download

Cite This Work

@article{1ff49a3f-e40a-4d35-9189-4d1e7cbed68f,
  title={Leaching Manganese Nodules in an Acid Me},
  author={David Torres and Luís Ayala},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Leaching Manganese Nodules in an Acid Me
AU  - David Torres
AU  - Luís Ayala
PY  - 2026
LA  - en
ER  -

Similar Items

842063941 SX configuration

2026enPDF

Recovery of precious metals from e waste

Printed circuit boards (PCBs) from electronic gadgets at the end of their useful life period are currently being dumped in landfills or incinerated, c

2026enPDF

Treatment of manufacturing scrap TV boar

The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f

2026enPDF

Direct leach approaches to Platinum Group Metal (PGM) ores and concentrates: A review

C.N. Mpinga, J.J. Eksteen

Platinum Group Metals (PGMs), often with associated gold, have very few occurrences where they are present in an ore deposit at economically extractab

2015enPDF

Metal Casting Processes

Unknown, Unknown

This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu

2023enPDF

The Nature of Solid Iron and Its Grain Structure

Unknown, Unknown

This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand

2023enPDF