Ferro molybdenum is produced by smelting molybdenum oxide and iron oxide in a blast furnace or electric arc furnace. The production process typically involves the following steps:
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Raw materials preparation: The raw materials required for the production of ferro molybdenum include molybdenum oxide, iron oxide, and coke. The raw materials are carefully selected and weighed to ensure that they are in the proper proportions for the desired composition of the final product.
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Charging: The raw materials are charged into the furnace, typically in layers of coke, molybdenum oxide, and iron oxide.
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Smelting: The furnace is heated to high temperatures, typically between 1,800 and 2,000°C, to melt the raw materials and form a molten alloy.
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Reduction: The molybdenum oxide is reduced to metallic molybdenum by the carbon in the coke, and the iron oxide is reduced to metallic iron by the molybdenum.
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Refining: The molten alloy is refined to remove any impurities or slag, which can negatively affect the quality of the final product.
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Casting: The molten alloy is cast into ingots or other forms depending on the specific application requirements.
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Cooling and solidification: The cast alloy is allowed to cool and solidify to form a solid product that can be further processed or used as-is.