发明名称 |
METHOD FOR PRODUCING HEMATITE FOR IRON MANUFACTURING |
摘要 |
Proposed is a technique for separating a leach residue from which a hematite-containing material capable of being used as a raw material for ironmaking can be obtained and provided is a method for producing hematite for ironmaking from the leach residue. The method utilizes a leach residue as a raw material, the leach residue being obtained from a hydrometallurgical refining plant where a nickel oxide ore treated by a high pressure acid leach process, and includes at least two steps, in sequence: a separation step of separating the leach residue into an overflow and an underflow with a wet cyclone; and an another separation step of separating the separated overflow into a strong magnetic substance and a weak magnetic substance using magnetic force, wherein a strong-magnetic-field magnetic separator is used in the another separation step using the magnetic force. (139 words) |
申请公布号 |
EP3000903(A9) |
申请公布日期 |
2016.06.22 |
申请号 |
EP20140788065 |
申请日期 |
2014.04.14 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
OHARA GO;SASAKI HIDEKI;KAN YASUMASA;IMAMURA MASAKI |
分类号 |
C22B23/00;B03C1/30;B04C9/00;C01G49/06;C22B3/04 |
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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