发明名称 |
Method of roasting material containing at least one of V, Mo and Ni and rotary kiln for roasting the same |
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. |
申请公布号 |
US8137654(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20060992838 |
申请日期 |
2006.02.21 |
申请人 |
TAKAHASHI KENJI;SUGIMORI HIROICHI;EHARA NOBUO;JFE MATERIAL CO., LTD.;SUMITOMO HEAVY INDUSTRIES, LTD. |
发明人 |
TAKAHASHI KENJI;SUGIMORI HIROICHI;EHARA NOBUO |
分类号 |
C01B13/14;C01B13/32;C22B1/02;C22B1/06;C22B5/00;C22B23/02;C22B23/06;C22B34/22;C22B34/34 |
主分类号 |
C01B13/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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