electrolytic manganese metal flake supplier



Production process for electrolytic manganese metal flake At present, China's electrolytic manganese chip production mainly to 99.7% of the products (now most manufacturers have actually reached more than 99.8%), only a few manufacturers produce 99.9% of the products (because 99.9% of the product market demand is small.

However, many enterprises in the feasibility study report are called the production of 99.9%, the main raw materials - manganese ore for manganese oxide ore and manganese carbonate ore two categories, in addition to the previous process of liquid production methods are not the same, electrolytic manganese chip production process is basically the same. Manganese carbonate ore is directly using sulfuric acid and manganese carbonate combined reaction to obtain manganese sulfate solution, and then through the middle, purification, filtration and a series of processes prepared for electrolyte, by adding additives such as selenium dioxide, ammonium sulphate, etc. can enter the electrolytic cell for electrolysis; Mainly manganese dioxide in general conditions do not react with sulfuric acid, must be treated for divalmanganese and sulfuric acid reaction to prepare manganese sulfate solution, the treatment method is generally roasting method, is the manganese dioxide and reduced substances (generally coal) mixed after dense heating, at a certain temperature C will be reduced to divalnation manganese, After crushing and reacting with sulfuric acid, this method is called roasting method, and another method is called bi-mining method, that is, the use of manganese dioxide ore powder and sulfuric acid under the action of oxidation reduction reaction to prepare manganese sulfate. However, due to the high cost, the industry is basically not used, among them, roasting method than the two mining method is more common, but because many roasting plants use the roasting furnace is simple and easy, but the energy consumption of higher pollution of the reflection furnace, not recommended.

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