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1. 发明公开

EP3048083A1 PRODUCTION METHOD FOR HEMATITE FOR IRON PRODUCTION 审中-公开
标题翻译： HERSTELLUNGSVERFAHRENFÜRHÄMATIT祖尔EISENERZEUGUNG
公开(公告)号：EP3048083A1
公开(公告)日：2016-07-27
申请号：EP14845100.8
申请日：2014-09-04
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： SASAKI Hideki , KAN Yasumasa , MITSUI Hiroyuki
IPC分类号： C01G49/06 , C22B1/02 , C22B3/04 , C22B3/44 , C22B23/00
CPC分类号： C01G49/06 , C01P2006/80 , C22B23/043 , C22B23/0461 , Y02P10/212
摘要： Provided is a production method for refining iron oxide (hematite) having such a low sulfur content as to be used as a raw material for ironmaking from a leach residue containing iron oxide, the leach residue being produced by a high pressure acid leach (HPAL) process.
The method is to produce (high-purity) hematite for ironmaking by a process of adding an oxidant and sulfuric acid to nickel oxide ore and then leaching nickel, the method further including: forming a neutralized residue having a sulfur grade exceeding 1.0% by weight by adding a neutralizing agent to leach slurry and being subjected to solid-liquid separation, the neutralizing agent serving to form plaster by reaction with a free sulfuric acid of surplus acid contained in the leach slurry, the leach slurry being a mixture of a leachate and a leach residue obtained after leaching the nickel; and heating the neutralized residue at a heating temperature of 600°C or more and 1400°C or less to form hematite having a sulfur grade of 1.0% or less by weight.
Provided is a method of producing (high-purity) hematite for ironmaking by a process of adding an oxidant and sulfuric acid to nickel oxide ore and then leaching nickel, the method further including: forming a neutralized residue having a sulfur grade exceeding 1.0% by weight by adding a neutralizing agent to leach slurry and being subjected to solid-liquid separation, the neutralizing agent serving to form plaster by reaction with a free sulfuric acid of surplus acid contained in the leach slurry, the leach slurry being a mixture of a leachate and a leach residue obtained after leaching the nickel; and heating the neutralized residue at a heating temperature of 600°C or more and 1400°C or less to form hematite having a sulfur grade of 1.0% or less by weight.
(128 words)
摘要翻译：本发明提供了一种用于从含有氧化铁的浸出残渣中用作具有低硫含量的氧化铁（赤铁矿）作为炼铁原料的生产方法，该浸出残渣由高压酸浸（HPAL）处理。该方法是通过向氧化镍矿中加入氧化剂和硫酸然后浸出镍的方法生产（高纯度）赤铁矿，该方法还包括：形成硫含量超过1.0％的中和残渣通过添加中和剂浸出浆料并进行固液分离，中和剂通过与浸出浆料中所含的剩余酸的游离硫酸反应形成石膏，浸出浆料是渗滤液和浸出镍后获得的浸出渣; 并在600℃以上且1400℃以下的加热温度下加热中和的残渣，形成硫等级为1.0％以下的赤铁矿。本发明提供一种通过向氧化镍矿石中加入氧化剂和硫酸然后浸出镍的方法制造（高纯度）的炼铁赤铁矿的方法，该方法还包括：通过以下步骤形成硫等级超过1.0％的中和残渣：通过添加中和剂以浸出浆料并进行固液分离，中和剂通过与浸出浆料中所含的剩余酸的游离硫酸反应形成石膏，浸出浆料是浸出液的混合物浸出镍后得到的浸出渣; 并在600℃以上且1400℃以下的加热温度下加热中和的残渣，形成硫等级为1.0％以下的赤铁矿。（128字）

2. 发明公开

EP3000903A9 METHOD FOR PRODUCING HEMATITE FOR IRON MANUFACTURING 审中-公开
标题翻译：生产铁水制造铁水的方法
公开(公告)号：EP3000903A9
公开(公告)日：2016-06-22
申请号：EP14788065.2
申请日：2014-04-14
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA Go , SASAKI Hideki , KAN Yasumasa , IMAMURA Masaki
IPC分类号： C22B23/00 , B03C1/30 , B04C9/00 , C01G49/06 , C22B3/04
CPC分类号： C22B3/22 , B03B5/34 , B03B7/00 , B03C1/025 , B03C1/30 , B03C2201/20 , C01G49/06 , C22B7/005 , Y02P10/234
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)
摘要翻译：提出了一种用于分离浸出残渣的技术，该浸出残渣可以获得能够用作炼铁用原料的含赤铁矿材料，并提供一种由浸出残渣制造用于炼铁的赤铁矿的方法。所述方法利用浸出残渣作为原料，所述浸出残渣从湿法冶金炼制厂获得，其中通过高压酸浸过程处理的氧化镍矿石依次包括至少两个步骤：分离分离步骤浸出残渣用湿式旋风分离器溢流和下溢; 以及利用磁力将分离的溢流分离成强磁性物质和弱磁性物质的另一分离步骤，其中在利用磁力的另一分离步骤中使用强磁场磁性分离器。（139字）

3. 发明公开

EP2829621A1 METHOD FOR PRODUCING HEMATITE FOR IRON PRODUCTION 有权
标题翻译：生产铁生产铁的方法
公开(公告)号：EP2829621A1
公开(公告)日：2015-01-28
申请号：EP13763969.6
申请日：2013-01-16
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： SASAKI Hideki , KAN Yasumasa , OZAKI Yoshitomo , ENOMOTO Manabu , SHOUJI Hirofumi , HIGAKI Tatsuya , MITSUI Hiroyuki
IPC分类号： C22B3/44 , C22B1/00 , C22B1/02 , C22B3/00 , C22B15/00 , C22B23/00
CPC分类号： C01G49/06 , C01P2004/61 , C22B3/44 , Y02P10/234
摘要： Provided is a method for producing hematite for ironmaking, wherein high purity hematite, which can be used as an iron-making raw material, is cheaply and efficiently recovered from a leach residue containing iron oxide produced by a high pressure acid leach (HPAL) process. This method for producing (high purity) hematite for ironmaking in a process of adding a mineral acid and an oxidant to ore containing iron and valuable metals and then leaching the valuable metals under high pressure and high temperature includes (1) a neutralization step of adding a neutralizer to a leachate obtained under high pressure and high temperature to form a leach slurry, (2) a solid-liquid separation step of separating the leach slurry obtained in the neutralization step (1) into a leach residue and the leachate, and (3) a classification step of classifying the leach residue into the hematite and gangue components.
摘要翻译：本发明提供一种生产赤铁矿的方法，其中可用作制铁原料的高纯度赤铁矿廉价且有效地从含有通过高压酸浸（HPAL）工艺生产的氧化铁的浸出残余物中回收。（1）中和工序，将含有铁和有价金属的矿石中添加无机酸和氧化剂，然后在高温高压下浸取有价金属的工序中，制造（高纯度）赤铁矿用赤铁矿的方法，（2）固液分离步骤，将在中和步骤（1）中获得的浸出浆液分离成浸出残渣和浸出液，以及（ 3）分级步骤，将浸出残渣分类成赤铁矿和脉石组分。

4. 发明授权

EP3048083B1 PRODUCTION METHOD FOR HEMATITE FOR IRON PRODUCTION 有权
公开(公告)号：EP3048083B1
公开(公告)日：2019-07-31
申请号：EP14845100.8
申请日：2014-09-04
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： SASAKI Hideki , KAN Yasumasa , MITSUI Hiroyuki
IPC分类号： C01G49/06 , C22B1/02 , C22B3/04 , C22B3/44 , C22B23/00

5. 发明授权

EP2829516B1 PRODUCTION METHOD FOR HEMATITE FOR IRON PRODUCTION 有权
公开(公告)号：EP2829516B1
公开(公告)日：2018-12-26
申请号：EP13764493.6
申请日：2013-01-16
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： SASAKI Hideki , KAN Yasumasa , MITSUI Hiroyuki
IPC分类号： C22B3/20
CPC分类号： C22B3/22 , C01B17/507 , C01G49/06 , C01P2006/80 , C22B3/20 , C22B23/0461 , Y02P10/234
摘要： Provided is a production method for refining iron oxide (hematite), which has such a low sulfur content as to be used as a raw material for ironmaking from a leach residue containing iron oxide, the leach residue being produced by a high pressure acid leach (HPAL) process and being a raw material that can be cheaply and stably procured. In the method of producing (high purity) hematite for ironmaking by a process of adding an oxidant and sulfuric acid to nickel oxide ore and then leaching nickel, a leach residue obtained after the leaching of nickel is heated to 600°C or more, and preferably 800°C or more and 1400°C or less.

6. 发明公开

EP2980024A1 METHOD FOR MANUFACTURING HEMATITE FOR IRON MANUFACTURE 审中-公开
标题翻译：工艺用于生产铁生产HEMATITE FOR
公开(公告)号：EP2980024A1
公开(公告)日：2016-02-03
申请号：EP13880527.0
申请日：2013-12-12
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA Go , SASAKI Hideki , KAN Yasumasa , IMAMURA Masaki
IPC分类号： C01G49/06 , C01G53/00 , C22B1/00 , C22B3/04 , C22B3/44 , C22B23/00
CPC分类号： C01G49/06 , C22B3/06 , C22B3/44 , C22B23/00 , Y02P10/234
摘要： Provided is a method for producing hematite for ironmaking, capable of using a conventional Ca-based neutralizing agent and a base rock-derived neutralizing agent other than the Ca-based neutralizing agent during a real operation of refining hematite, which contains such a low sulfur content as to be used as a raw material for ironmaking, from a leach residue containing iron oxide that is produced in an HPAL process. The method is performed by a process of adding a mineral acid and an oxidizing agent to an ore containing iron and a valuable metal and then leaching the valuable metal under high temperature and pressure, and includes (1) a high-pressure acid leaching step, (2) a preliminary neutralization step, (3) a first solid-liquid separation step, (4) a neutralization step, (5) a second neutralization step, (6) a third solid-liquid separation step, (7) a step of adding part of the Fe-enriched slurry as a seed crystal in the neutralization step (4), and (8) a second solid-liquid separation step. (162 words)

7. 发明授权

EP2980024B1 METHOD FOR MANUFACTURING HEMATITE FOR IRON MANUFACTURE 有权
公开(公告)号：EP2980024B1
公开(公告)日：2018-09-12
申请号：EP13880527.0
申请日：2013-12-12
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA Go , SASAKI Hideki , KAN Yasumasa , IMAMURA Masaki
IPC分类号： C01G49/06 , C01G53/00 , C22B1/00 , C22B3/04 , C22B3/44 , C22B23/00
CPC分类号： C01G49/06 , C22B3/06 , C22B3/44 , C22B23/00 , Y02P10/234
摘要： Provided is a method for producing hematite for ironmaking, capable of using a conventional Ca-based neutralizing agent and a base rock-derived neutralizing agent other than the Ca-based neutralizing agent during a real operation of refining hematite, which contains such a low sulfur content as to be used as a raw material for ironmaking, from a leach residue containing iron oxide that is produced in an HPAL process. The method is performed by a process of adding a mineral acid and an oxidizing agent to an ore containing iron and a valuable metal and then leaching the valuable metal under high temperature and pressure, and includes (1) a high-pressure acid leaching step, (2) a preliminary neutralization step, (3) a first solid-liquid separation step, (4) a neutralization step, (5) a second neutralization step, (6) a third solid-liquid separation step, (7) a step of adding part of the Fe-enriched slurry as a seed crystal in the neutralization step (4), and (8) a second solid-liquid separation step. (162 words)

8. 发明授权

EP2829621B1 METHOD FOR PRODUCING HEMATITE FOR IRON PRODUCTION 有权
标题翻译：生产铁生产铁的方法
公开(公告)号：EP2829621B1
公开(公告)日：2017-11-08
申请号：EP13763969.6
申请日：2013-01-16
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： SASAKI Hideki , KAN Yasumasa , OZAKI Yoshitomo , ENOMOTO Manabu , SHOUJI Hirofumi , HIGAKI Tatsuya , MITSUI Hiroyuki
IPC分类号： C01G49/06 , C22B3/04 , C22B23/00 , C01B17/50
CPC分类号： C01G49/06 , C01P2004/61 , C22B3/44 , Y02P10/234

9. 发明授权

EP3000903B1 METHOD FOR PRODUCING HEMATITE FOR IRON MANUFACTURING 有权
公开(公告)号：EP3000903B1
公开(公告)日：2018-11-21
申请号：EP14788065.2
申请日：2014-04-14
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA Go , SASAKI Hideki , KAN Yasumasa , IMAMURA Masaki
IPC分类号： C22B23/00 , B03C1/30 , B04C9/00 , C01G49/06 , C22B3/04
CPC分类号： C22B3/22 , B03B5/34 , B03B7/00 , B03C1/025 , B03C1/30 , B03C2201/20 , C01G49/06 , C22B7/005 , Y02P10/234
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)

10. 发明公开

EP3000903A1 METHOD FOR PRODUCING HEMATITE FOR IRON MANUFACTURING 审中-公开
公开(公告)号：EP3000903A1
公开(公告)日：2016-03-30
申请号：EP14788065.2
申请日：2014-04-14
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA Go , SASAKI Hideki , KAN Yasumasa , IMAMURA Masaki
IPC分类号： C22B23/00 , B03C1/30 , B04C9/00 , C01G49/06 , C22B3/04
CPC分类号： C22B3/22 , B03B5/34 , B03B7/00 , B03C1/025 , B03C1/30 , B03C2201/20 , C01G49/06 , C22B7/005 , Y02P10/234
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)

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