发明名称 |
PROCESS FOR RECOVERYING VALUABLE METALS FROM WASTE CATALYST |
摘要 |
A method for recovering high purity nickel, cobalt, molybdenum and vanadium from a waste catalyst in high yield by convenient means is provided. The method includes a step of heating a waste catalyst containing valuable metals in a non-oxidizing atmosphere, thereby deoiling an adhered oil content by thermal decomposition, a step of co-milling the deoiled waste catalyst and a chloride to form a chloride of nickel and/or cobalt, a step of water-leaching the co-milled waste catalyst to dissolve nickel and/or cobalt in water, a step of oxidizing leaching residue containing molybdenum and/or vanadium after water leaching to form an oxide or molybdenum and/or vanadium; and a step of subjecting the leaching residue containing the oxide of molybdenum and/or vanadium to alkali leaching to dissolve the molybdenum and/or vanadium in an alkali solution. |
申请公布号 |
EP2290113(A4) |
申请公布日期 |
2016.07.27 |
申请号 |
EP20090762573 |
申请日期 |
2009.06.11 |
申请人 |
JFE MINERAL COMPANY, LTD.;TOHOKU UNIVERSITY |
发明人 |
SHIOKAWA, TAKAHIRO;SUGINOBE, HIDETAKA;SAITO, FUMIO;KANO, JUNYA |
分类号 |
C22B7/00;B09B3/00;C22B23/00;C22B34/22;C22B34/34 |
主分类号 |
C22B7/00 |
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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