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Catalyzer Manganese Monoxide (Manganese Oxide)
| Product Name: | MANGANESE (II) OXIDE |
| Synonyms: | c.i.77726;casselgreen;ci77726;manganesegreen;manganesemonooxide;manganeseoxide(mno);Manganese Monooxide (MNO);MANGANESE (II) OXIDE |
| CAS: | 1344-43-0 |
| MF: | MnO |
| MW: | 70.94 |
| EINECS: | 215-695-8 |
| Product Categories: | metal oxide;Inorganics |
| Mol File: | 1344-43-0.mol |
Chemical Parameters:
| NO. | Technological Specification | Standard Grade | |
| 1 | MnO | % | ≥99.5;≥99.9% |
| 2 | Mn | % | ≥77 |
| 3 | H2O | % | ≤0.1 |
| 4 | Ca | % | ≤0.02 |
| 5 | S | % | ≤0.025 |
| 6 | Mg | % | ≤0.02 |
| 7 | Na | % | ≤0.02 |
| 8 | Si | % | ≤0.002 |
| 9 | Pb | % | ≤0.005 |
| 10 | Cd | % | ≤0.005 |
| 11 | As | % | ≤0.005 |
| 12 | Fe | % | ≤0.025 |
The differences between manganese monoxide (MnO) and manganese dioxide (MnO ₂) in raw materials, production processes, and application fields:
1, Comparison of raw materials
1. Manganese monoxide
Main source: Using pyroxene ore (mainly composed of MnO ₂) as raw material, 3 is prepared by reduction roasting process.
Other raw materials: Electrolytic manganese metal sheets are oxidized at high temperatures to produce high-purity MnO2.
2. Manganese dioxide
Natural source: Direct mining of pyroxene (MnO ₂) or rhodochrosite (MnCO3), followed by beneficiation and processing purification.
Synthetic raw materials: manganese sulfate solution (electrolytic method), manganese salt solution (wet oxidation), etc.
2, Comparison of production processes
1. Manganese monoxide
Reduction roasting method:
Manganese ore and coal powder are mixed in proportion and roasted at 800 ℃ for 4 hours to produce MnO3.
High purity preparation process:
After the electrolytic manganese flakes are crushed, they are calcined in CO ₂ and H ₂ atmospheres, and then cooled and ground to obtain high-purity MnO2.
2. Manganese dioxide
Electrolysis method:
Electrolysis of manganese sulfate solution results in the precipitation of MnO ₂ crystals (such as electrolytic manganese dioxide EMD) at the anode.
Wet synthesis:
Oxidation method: Manganese salt solution is oxidized with chlorine or oxygen to generate MnO ₂ 5.
Precipitation method: Manganese salt reacts with alkaline solution to form hydroxide precipitate, which is calcined to obtain MnO ₂ 5.
Natural mineral processing: Soft manganese ore is directly purified through steps such as crushing, acid leaching, and impurity removal.
3, Comparison of application fields
1. Manganese monoxide
Industrial catalysis: used as a catalyst for the synthesis of pentanol and as a drying agent for ceramic glazes.
Agriculture and Feed: As a trace element fertilizer and animal feed additive.
Material preparation: Production of manganese iron alloy, magnetic materials, and battery raw materials.
2. Manganese dioxide
Battery manufacturing:
Alkaline battery positive electrode material improves energy density and cycle life by
Active component 57 for lithium batteries and zinc manganese batteries.
Environmental Protection and Chemical Industry:
Exhaust gas treatment catalyst (such as automobile exhaust purification)
Oxidants are used in non-ferrous metallurgy, uranium extraction, and organic synthesis.
Material processing:
Glass decolorizing agent, ceramic coloring agent, and rubber reinforcing agent .
Water treatment agents (adsorbing iron and manganese ions) and explosion-proof pyrotechnic materials
