Method for removing magnesium impurity element in waste aluminum regeneration
A technology for regenerating impurity elements and aluminum, which is applied in the direction of improving process efficiency, can solve the problems that magnesium impurity elements do not have, and has not been seen to remove magnesium impurity elements, and achieves the effect of less demanding process requirements and short process steps.
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Embodiment 1
[0024] A) To prepare magnesium removal flux, put 30% of manganese chloride, 10% of calcium chloride, 30% of aluminum fluoride, 5% of activated carbon, 5% of calcium oxide and 20% of magnesium carbonate weighed by mass into a stirring Such as in a stirred tank, stir 15min with a stirrer at a speed of 60rpm to obtain a magnesium-removing flux for use;
[0025] B) Waste aluminum smelting, first put the waste aluminum into the smelting furnace and melt it into waste aluminum melt, then add the magnesium removal flux obtained in step A) into the waste aluminum melt while stirring the waste aluminum melt, and then add When removing the magnesium flux, the temperature of the waste aluminum melt is controlled at 780°C. The method of adding the magnesium removal flux is to pre-press the magnesium removal flux into a block, and then add it to the waste aluminum melt in the form of a block, and press it into The technological process of the block is: mix the magnesium-removing flux, the ...
Embodiment 2
[0028] A) To prepare magnesium removal flux, put 10% of manganese chloride, 30% of calcium chloride, 10% of aluminum fluoride, 20% of activated carbon, 20% of calcium oxide and 10% of magnesium carbonate weighed by mass into a stirring Such as in a stirred tank, stir 2min with a stirrer at a speed of 240rpm to obtain a magnesium-removing flux for use;
[0029] B) Waste aluminum smelting, first put the waste aluminum into the smelting furnace and melt it into waste aluminum melt, then add the magnesium removal flux obtained in step A) into the waste aluminum melt while stirring the waste aluminum melt, and then add When removing the magnesium flux, the temperature of the waste aluminum melt is controlled at 720°C. The method of adding the magnesium removal flux is to pre-press the magnesium removal flux into a block, and then add it to the waste aluminum melt in the form of a block, and press it into The process of the block is: mix the magnesium removal flux, the binder that i...
Embodiment 3
[0032] A) To prepare magnesium removal flux, put 15% of manganese chloride, 25% of calcium chloride, 25% of aluminum fluoride, 10% of activated carbon, 10% of calcium oxide and 15% of magnesium carbonate weighed by mass into a stirring Such as in a stirred tank, stir 10min with a stirrer at a speed of 120rpm to obtain a magnesium-removing flux for use;
[0033] B) Waste aluminum smelting, first put the waste aluminum into the smelting furnace and melt it into waste aluminum melt, then add the magnesium removal flux obtained in step A) into the waste aluminum melt while stirring the waste aluminum melt, and then add When removing the magnesium flux, the temperature of the waste aluminum melt is controlled at 750°C. The method of adding the magnesium removal flux is to pre-press the magnesium removal flux into a block, and then add it to the waste aluminum melt in the form of a block, and press it into The process of the block is: mix the magnesium removal flux, the binder that ...
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