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Method of roasting material containing at least one of V, Mo and Ni and rotary kiln for roasting the same
Method of roasting material containing at least one of V, Mo and Ni and rotary kiln for roasting the same
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机译:包含V,Mo和Ni中至少一种的材料的焙烧方法以及用于焙烧它们的回转窑
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摘要
Provided is a roasting method capable of reducing both C and S components in minerals down to 0.5% or less, respectively, and securing a yield ratio of 90% or more for the Mo component. In a rotary kiln 7, a V, Mo and Ni containing material containing C and S components is subjected to oxidizing roasting to remove the C and S components from the material before reducing the material by means of a reducing agent in order to recover valuable metals composed of V, Mo and Ni. The rotary kiln is equipped with a burner 11 disposed on a material charge side 8a of the roasting furnace 8 to which the material is charged. In the roasting furnace, a direction along which the material moves and a flow of oxygen-containing gas introduced into the roasting furnace 8 are set to be parallel with each other.
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