发明名称 |
PROCESS FOR PRODUCTION OF FERRONICKEL SMELTING RAW MATERIAL FROM LOW GRADE LATERITIC NICKEL ORE |
摘要 |
Provided is a method for producing ferronickel from a nickel sulfide or a mixed sulfide containing nickel and cobalt, obtained by hydrometallurgy of nickel oxide ore or obtained from scraps or products in process. The method for producing a ferronickel raw material is to form the ferronickel raw material from a nickel sulfide or a mixed sulfide containing nickel sulfide and cobalt sulfide, wherein treatments are performed through the following steps: (1) redissolution step, (2) deferrization step, (3) solvent extraction step, (4) hydroxylation step, (5) roasting step, and (6) washing and calcining step. |
申请公布号 |
EP2599885(B1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20110812277 |
申请日期 |
2011.07.13 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
KOBAYASHI HIROSHI;NAKAI OSAMU;SHIBAYAMA KEISUKE;NAKAI TAKAYUKI;OZAKI YOSHITOMO;TOKI NORIHISA;TAKAHASHI JUNICHI;TAN TOSHIROU |
分类号 |
C22B23/00;C22B1/02;C22B1/16;C22B3/04;C22B3/20;C22B3/44;C22B7/00;C22B23/02;C22C33/04 |
主分类号 |
C22B23/00 |
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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