One Of The High Level Metal Electrolytic Manganese Flake

A method for the continuous production of manganese nitride products, which is characterised by: after crushing at least one kind of electrolytic manganese flake, metal manganese and ferromanganese, a binder is added in proportion to press it into a spherical shape; The push plate kiln or tunnel kiln is heated and pressurised, and the positive pressure of 100~10000Pa is always maintained, the temperature at the inlet end of the push plate kiln or tunnel kiln is high, and the temperature at the outlet end is low; The prepared material is placed in the push plate kiln or tunnel kiln, and nitrogen or ammonia nitrogen mixture is introduced into the push plate kiln or tunnel kiln at the same time, and the passage time is 2~8h; The prepared material is taken out of the kiln and cooled under nitrogen protection.

1.The preparation method of a high-purity aluminium-manganese master alloy, wherein it is carried out in the following steps: using electrolytic manganese flakes with a quality grade of DJMnC or above, and high-purity molten aluminium of Al99.99 grades or above as raw materials, the smelting process passes through a powder spraying refiner, and nitrogen or argon is used as a carrier to evenly spray the aluminium melt into the melt with a refining agent to carry out refining and slag removal, and the nitrogen or argon flow rate is 10?NL/min to 35NL/min, and the gas pressure is 0.1? MPa to 0.3MPa, the amount of refining agent for aluminium melt is 2 kg to 6 kg per ton of aluminium, the temperature of the production process is controlled between 800 °C and 950 °C, and the aluminium melt covering agent of 1mm to 3mm potassium salt or sodium salt is sprinkled on the surface of the molten aluminium.

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