Method for preparing ferro-silicon and magnesium using ferro-nickel slag, preparation apparatus used therefor, and smelting reduction furnace
A preparation device and reduction furnace technology, which is applied in the field of magnesium preparation devices, can solve the problems of slag becoming industrial waste and adding, and achieve the effects of enhancing cost competitiveness, reducing energy costs, and reducing carbon monoxide emissions
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[0043] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings to describe the present invention in detail.
[0044] The embodiments of the present invention are intended to enable those skilled in the art to which the present invention pertains to understand the present invention more completely. Therefore, in order to more clearly describe the present invention, the shapes, sizes, and the like of elements in the drawings are exaggerated.
[0045] Ferronickel slag is a by-product produced during the production of ferronickel, and contains magnesium compounds and iron components. For example, ferronickel slag after extracting ferronickel from nickel ore in New Caledonia consists of the following components (percentage by weight).
[0046] Table 1
[0047] differentiate
SiO 2
MgO
al 2 o 3
T.Fe
CaO
other
content
53.45
35.5
1.45
4.5
0.65
4.45 ...
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