Скачать или смотреть recovering manganese from silicomanganese slag

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Large amounts of silicomanganese slag are generated and discarded from the silicomanganese alloy smelting furnaces that treat ferromanganese slag to produce silicomanganese alloy, which contain 10–14 mass% Mn. It is thus important to find a possibility for recovering manganese from silicomanganese slag in terms of environmental and economic points of view. Upgrading of manganese from the silicomanganese slag for recycling the slag back to the silicomanganese furnaces must be necessary to decrease the slag volume which causes irregularities in their operation.

And the flow sheet is as belows:
To separate the alloy granularities needs the liberation of the alloy from the slag, which requires the further crushing or the milling of the slag according to the specific situation of slag. If the embedded size is very fine, rod milling or ball milling will be considered while crushing shall be choosed when it comes to the coarse embedded granularities, and high-efficiency crusher or fine crusher can be ok to fulfill the requirement.
In the crushed or milled silicon manganese smelting slag, the alloy granules and the waste are separated or liberated. The silicon manganese alloy granules are of high density while the density of the waste is lower. With this difference, gravity separation will be a great way to separate the alloy out. And the alloy granules can be used for smelting or sold directly while the final waste can be sold to the cement factory or new-type buiding material factory.