发明名称 |
Process for the production of vanadium-containing steel alloys |
摘要 |
A process for production of vanadium-containing agglomerate, includes the steps of providing a spent, vanadium-containing, iron based hydroconversion catalyst; incinerating the spent catalyst in the presence of an oxidizer until a sulfur content of the spent catalyst is reduced to 2% or less by weight; grinding the spent catalyst to a particle size suitable for a desired use; and mixing the spent catalyst with an iron mineral and a binder to form a vanadium-containing agglomerate; and pyroconsolidating the vanadium-containing agglomerate. Agglomerates so obtained exhibit a solid solution structure of ferric oxide and vanadium pentoxide. A process for production of vanadium-containing steel alloys from such agglomerates includes the steps of: reducing the vanadium-containing agglomerate; mixing the reduced vanadium-containing agglomerate with a standard reduced iron agglomerate to obtain a mixed reduced agglomerate; and melting the mixed reduced agglomerate under reducing conditions to obtain a vanadium-containing steel alloy.
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申请公布号 |
US5242483(A) |
申请公布日期 |
1993.09.07 |
申请号 |
US19920924957 |
申请日期 |
1992.08.05 |
申请人 |
INTEVEP, S.A. |
发明人 |
RAMIREZ DE AGUDELO, MARIA M.;SEATON, CARLOS;SPECHT, MARIA I. |
分类号 |
C22B1/14;B01J38/00;C01G31/00;C22B1/16;C22B34/22;C22C33/00;C22C33/04 |
主分类号 |
C22B1/14 |
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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