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Can manganese be extracted by electrolysis?
Yes, absolutely. Electrolysis is the primary and most important method for
producing high-purity manganese metal, as described above.
The process is specifically called Electrowinning. Here’s a simplified step-by-step overview of how it works:
- 1.Ore Preparation: Manganese ore (primarily MnO₂, pyrolusite) is crushed and ground.
- 2.Leaching: The ore is leached with sulfuric acid (H₂SO₄) and a reducing
agent (often a fuel like coal or natural gas). This reduction
converts the Mn⁴⁺ in MnO₂ to soluble Mn²⁺, creating a manganese
sulfate (MnSO₄) solution.
- •Reaction:
2MnO₂ + 2H₂SO₄ -> 2MnSO₄ + O₂ + 2H₂O (with heat and a reductant)
- 3.Purification: The impure MnSO₄ solution is treated to precipitate and remove
harmful metallic impurities like iron, copper, nickel, and cobalt.
This step is critical, as even tiny amounts of these elements would
contaminate the final product and lower its grade.
- 4.Electrolysis (Electrowinning): The purified MnSO₄ solution is pumped into electrolytic cells.
The cells have an inert lead alloy anode and a stainless steel
cathode.
- •At the anode (+), water is oxidized, producing oxygen gas:
2H₂O -> O₂ + 4H⁺ + 4e⁻ - •At the cathode (-), Mn²⁺ ions are reduced and deposited as solid metal:
Mn²⁺ + 2e⁻ -> Mn
- 5.Harvesting: After a deposition period (typically 24 hours), the cathode is
removed, and the thin, brittle sheet of high-purity manganese metal
is stripped off and broken into the familiar manganese metal flakes.
This method is efficient for producing the high-grade material
required by modern industry and is responsible for the vast
majority of pure manganese metal production worldwide.
Electrolytic manganese metal flakes specifications
| Electrolytic Manganese Metal Flakes |
| Spec | Mn | C | S | P | Fe+Si+Se |
| ≥ | ≤ |
| 99.70% | 0.04% | 0.05% | 0.01% | 0.21% |
| Size | In flakes |
| Packing | In big bags of 1000kgs net each |
| | | | | |
Why Choose Us
All our products support any third-party inspection.
With 30 years of experience, we have extensive expertise in
exporting ferrovanadium and silicon carbide to Europe.
Our considerable stock ensures short delivery times, and we offer
flexible payment options, including TT/LC.
MOQ and sample: Negotiable
FQA
Q: What's the MOQ for a trial order?
A: There is no limit for a trial order. We will offer the best
suggestions and solutions based on your needs.
Q: How long is the delivery time?
A: The delivery time will depend on the order quantity.
Q: What are the payment terms?
A: Typically T/T, but we also accept L/C.
Q: Do you provide samples?
A: Yes, samples are available.
