Advanced metallurgical operations and electric vehicle component casting require tight control over raw material chemistries. Electrolytic Manganese Metal Flakes 99.7% highlights the professional supply capabilities of ZhenAn. By offering a high-purity element solution with minimal carbon, sulfur, and phosphorus concentrations, our industrial-grade material allows global steel plants and chemical producers to hit exact alloy targets with excellent recovery rates.
Product Specifications
Electrolytic Manganese Metal Flakes 99.7% defines an ultra-pure elemental addition material produced through acid leaching and subsequent electrowinning. This premium flake electrolytic manganese features an irregular, brittle sheet morphology with contrasting sides: a bright, crystalline silvery surface from the cathode deposition plate, and a dull, rough matte gray finish on the back.
Manufacturing Process
Manufacturing highly reliable, uniform metallurgical grade manganese flakes requires a continuous, multi-stage chemical and electrochemical purification sequence:
- Acid Digestion: Raw manganese carbonate or pre-reduced oxide ores are dissolved in hot sulfuric acid along with an ammonium sulfate buffer
- Chemical Purification: Ammonium sulfide and neutralizers precipitate out iron, copper, lead, zinc, cobalt, and nickel complexes
- Electrowinning Deposition: Purified solution enters automated electrolytic cells with high-amperage direct current
- Stripping & Processing: Metallic layers are mechanically detached, washed, dried, and crushed to meet sizing specifications
Chemical Composition Specifications
| Elemental Parameter |
Electrolytic Manganese 99.7 Purity |
High Grade Manganese Flakes (Mn99.8) |
| Manganese (Mn) Content ≥ |
99.70% |
99.80% |
| Carbon (C) Load ≤ |
0.04% |
0.01% |
| Sulfur (S) Level ≤ |
0.03% |
0.02% |
| Phosphorus (P) Limit ≤ |
0.005% |
0.003% |
| Iron (Fe) Fraction ≤ |
0.02% |
0.01% |
| Silicon (Si) Residue ≤ |
0.01% |
0.005% |
Physical Characteristics
Managing the physical Manganese Flake Size Specification prevents handling waste and ensures rapid dissolution in industrial furnaces:
- Sizing Profiles: Standard flake thickness 1.0mm to 3.0mm, lateral dimensions 10mm to 50mm
- Dissolution Kinetics: High surface-area-to-mass ratio enables rapid dissolution in liquid steel
- Oxidation Protection: Precise passivation wash forms stable surface barrier for long-term storage
Applications
Beyond traditional steel alloying, this high-purity manganese serves as a vital component in modern chemical engineering applications:
- Manganese Salts Synthesis: Dissolved in electronics-grade acids to produce high-purity Manganese Sulfate and Manganese Chloride
- Catalyst Formulations: Raw material for manganese dioxide catalysts used in emission control and chemical oxidation systems
Technical Comparison
| Structural Dimension |
Manganese Metal 99.7% (EMM) |
High-Carbon Ferromanganese (HCFeMn) |
| Pure Mn Weight Fraction |
≥ 99.7% |
65.0% - 78.0% Base |
| Carbon Impurity Level |
≤ 0.04% Max (Ultra-Low) |
6.0% - 8.0% (High Carbon Risk) |
| Companion Iron Load |
Negligible (≤ 0.02%) |
Balances to 100% (High Fe Carryover) |
Quality Assurance & Packaging
Procuring raw materials through an experienced global partner requires structured trade and verification protocols:
- Rigorous Chemical Validation: Certified X-ray fluorescence (XRF) or ICP-OES analysis sheets
- Standard Packaging: Manganese flakes packed in drums/bags (1000kg flexible bulk intermediate bags with internal plastic liners)
Direct Supply Coordination: Secure factory-direct pricing through the technical export division at ZhenAn
Direct WhatsApp / WeChat Service line: +86 15518824805
Frequently Asked Questions
What does 99.7% purity mean for electrolytic manganese metal flakes?
A purity level of 99.7% indicates that the material contains an absolute minimum of 99.7% pure elemental manganese by weight. The remaining 0.3% consists of strictly controlled trace inclusions, such as carbon, sulfur, phosphorus, iron, and silicon.
Why do steel manufacturers prefer 99.7% electrolytic manganese metal?
Steel manufacturers prefer 99.7% EMM because it allows them to adjust manganese levels without introducing unwanted carbon, silicon, or phosphorus. This precise control is critical for producing specialty steels.
How does high purity EMM improve steel alloy composition control?
High purity EMM removes the variables associated with lower-grade ferroalloys. Because it contains virtually zero iron, carbon, or silicon, metallurgical engineers can calculate exact weight additions needed to hit narrow target windows.
What manganese recovery rate can be achieved when using electrolytic manganese flakes?
When added to a well-deoxidized ladle or induction furnace under inert gas blanket, electrolytic manganese flakes can achieve recovery rates between 95% and 98%.
How is 99.7% EMM different from ferromanganese alloys?
Ferromanganese contains 15% to 35% iron and up to 8% carbon. In contrast, 99.7% EMM is elementally pure metal produced via hydrometallurgical electrowinning, eliminating iron carryover and keeping carbon below 0.04%.
What production processes are used to manufacture electrolytic manganese metal flakes?
Production relies on specialized hydrometallurgical flow: manganese-bearing ore leaching in sulfuric acid, multi-stage chemical precipitation, and electrowinning in diaphragm cells.
How do manufacturers ensure consistent quality of EMM batches?
Manufacturers ensure consistent quality through strict raw material sorting and automated control of cell parameters. Every production lot undergoes rigorous laboratory verification using ICP-OES and carbon-sulfur analyzers.
What factors affect the export price of electrolytic manganese metal flakes?
The export price is primarily driven by industrial electricity costs, raw manganese ore prices, environmental compliance costs, maritime freight rates, and shifting demand patterns.
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