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Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

In biology, manganese (II) ions function as cofactors for a large variety of enzymes with many functions. Manganese enzymes are particularly essential in detoxification of superoxide free radicals in organisms that must deal with elemental oxygen. Manganese also functions in the oxygen-evolving complex of photosynthetic plants. While the element is a required trace mineral for all known living organisms, it also acts as a neurotoxin in larger amounts. Especially through inhalation, it can cause manganism, or manganese poisoning a condition in mammals leading to neurological damage that is sometimes irreversible.

Manganese magnetic concentration process

Manganese ore processing technology is based on its different principles, there are many methods, and now in China magnetic concentration is the most widely used in manganese ore processing technology, after rough concentration and selected concentration then get the concentrate.

Application
Magnetic process is suitable for high phosphorus 、high silica low iron manganese ore.

Process introduction
1.Strong magnetic rough separation : wipe out the waste by using strong magnetic separator that specialize using in manganese ore , rough concentration of the concentrate by using spiral classifier , rough concentration of the tailings drain to tailings thickener directly .
2.Classification: underflow from the classifier is transported to magnetic separator for concentration; the overflow will be concentrated by thickener.
3.Middle magnetic separation: the tailings from middle magnetic separation drain to concentrator, the concentrate from middle magnetic separation get together with underflow of the concentration. 
4.Purification and concentration, concentration overflow return to system for cycling, concentration underflow get together with concentrate , to be the final separated concentrate.