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公开(公告)号：US20170175227A1
公开(公告)日：2017-06-22
申请号：US15304898
申请日：2015-03-27
发明人： Go OHARA , Yasumasa KAN , Masaki IMAMURA
CPC分类号： C22B23/043 , C22B1/24 , C22B3/08 , C22B3/22 , C22B3/44 , C22B23/005 , C22B23/0415 , C22B23/0461 , Y02P10/212
摘要： Provided is a hydrometallurgical process for nickel oxide ore for recovering nickel and cobalt using a high pressure acid leach process, the process achieving simplification and durability improvement of production facilities, achieving cost reduction and suppression of environmental risk by the compression of the capacity of a tailings dam for storing wastes, and being capable of recycling and effectively utilizing the wastes as a resource. The hydrometallurgical process for nickel oxide ore for recovering nickel and cobalt using a high pressure acid leach process includes an ore processing step, a leaching step, a solid-liquid separation step, a neutralization step, a zinc removal step, a sulfurization step, and a final neutralization step, and further includes step (A), or further includes step (A) and, step (B-1) and/or step (B-2) after step (A).
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公开(公告)号：US20160362304A1
公开(公告)日：2016-12-15
申请号：US15121403
申请日：2015-01-30
发明人： Go Ohara , Yasumasa Kan , Masaki Imamura
CPC分类号： C01G49/06 , C22B1/16 , C22B3/08 , C22B3/22 , C22B3/44 , C22B23/0415 , C22B23/043 , Y02P10/234
摘要： There is provided a method for producing (high purity) hematite for ironmaking, in a process where a mineral acid and an oxidizing agent are added to an ore containing iron and a valuable metal and then the valuable metal is leached under high temperatures and high pressures, comprises the steps of: (1) a high pressure leach step; (2) a preliminary neutralization step; (3) a solid-liquid separation step 1; (4) a neutralization step 1; (5) a neutralization step 2; (6) a solid-liquid separation step 3; (7) seed crystal addition treatment; (8) a solid-liquid separation step 2; and (9) a firing step.
摘要翻译： 提供了一种在含铁和有价金属的矿石中添加无机酸和氧化剂的方法，用于生产（高纯度）铁精矿的方法，然后在高温和高压下浸出有价值的金属 包括以下步骤：（1）高压浸出步骤; （2）初步中和步骤; （3）固液分离工序1; （4）中和步骤1; （5）中和步骤2; （6）固液分离工序3; （7）晶种添加处理; （8）固液分离步骤2; 和（9）烧制步骤。
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公开(公告)号：US20160076121A1
公开(公告)日：2016-03-17
申请号：US14785695
申请日：2014-04-14
发明人： Go Ohara , Hideki Sasaki , Yasumasa Kan , Masaki Imamura
CPC分类号： C22B23/043 , C22B3/08 , C22B3/22 , C22B3/44 , C22B23/0415 , C22B23/0461 , C22B34/32 , Y02P10/234
摘要： Provided is a hydrometallurgical process for nickel oxide ore using high pressure acid leaching to be capable of achieving improvement of durability of production facilities, simplification of the production facilities, suppression of the cost and environmental risks caused by compression of the volume of a tailings dam that stores wastes, and separation and recovery of impurity components which can be utilized as a resource. The hydrometallurgical process for nickel oxide ore of recovering nickel and cobalt using the high pressure acid leaching is characterized by including at least one step selected from step (A) (a step of separating and recovering chromite particles), step (B-1) (a step of neutralizing a leachate with a magnesium-based neutralizing agent), and step (B-2) (a step of neutralizing a leach residue slurry with the magnesium-based neutralizing agent).
摘要翻译： 提供了一种使用高压酸浸法的氧化镍矿石的湿法冶金方法，其能够实现生产设备的耐久性的提高，生产设施的简化，成本的抑制以及尾矿坝体积压缩引起的环境风险， 储存废物，分离和回收可用作资源的杂质成分。 使用高压酸浸法回收镍和钴的氧化镍矿的湿法冶金工艺的特征在于包括选自步骤（A）中的至少一个步骤（分离和回收铬铁矿颗粒的步骤），步骤（B-1）（ 使用镁系中和剂中和浸出液的工序）和工序（B-2）（使用镁系中和剂中和浸出残渣的工序）。
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公开(公告)号：US20150284820A1
公开(公告)日：2015-10-08
申请号：US14436970
申请日：2013-02-12
CPC分类号： C22B23/043 , C22B3/08 , C22B3/22 , C22B3/44 , C22B23/005 , C22B23/0415 , C22B23/0461 , Y02P10/212
摘要： Provided is a hydrometallurgical process of recovering Ni from nickel oxide ore using a high pressure acid leaching, in which abrasion of the facilities caused by an ore slurry is suppressed, the amount of a final neutralized residue is reduced, and impurity components are separated and recovered for recycling. The hydrometallurgical process includes, as steps of the high pressure acid leaching, at least one step selected from step (A): separating and recovering chromite particles in the ore slurry; step (B-1): through leaching step and a solid-liquid separation step, performing neutralization of a leachate obtained after the solid-liquid separation step using a Mg-based alkali such as Mg(OH)2; and step (B-2): through leaching step and a solid-liquid separation step, performing neutralization of a leachate obtained after the solid-liquid separation step using a Mg-based alkali such as Mg(OH)2, and then recovering hematite particles.
摘要翻译： 提供了一种使用高压酸浸取从镍氧化物矿石中回收Ni的湿法冶金方法，其中抑制由矿浆引起的设备的磨损，最终中和残留物的量减少，并且杂质组分被分离和回收 用于回收。 湿法冶金工艺包括作为高压酸浸的步骤，选自步骤（A）中的至少一个步骤：分离和回收矿浆中的铬铁矿颗粒; 步骤（B-1）：通过浸出步骤和固液分离步骤，使用Mg（OH）2等Mg系碱进行固溶分离步骤后得到的渗滤液的中和， 和步骤（B-2）：通过浸出步骤和固液分离步骤，使用Mg（OH）2等Mg基碱进行固液分离步骤后得到的浸出液中和，然后回收赤铁矿 粒子。
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5.发明授权Valuable metal leaching method, and valuable metal collection method employing the leaching method 有权有价值的金属浸出方法，采用浸出法的有价值的金属收集方法公开(公告)号：US09068242B2
公开(公告)日：2015-06-30
申请号：US13976160
申请日：2012-01-27
申请人： Hitoshi Ishida , Yukie Kawakami , Keiji Kudo , Satoshi Asano
发明人： Hitoshi Ishida , Yukie Kawakami , Keiji Kudo , Satoshi Asano
CPC分类号： C22B7/006 , C22B7/007 , C22B23/0415 , C22B26/12 , H01M4/525 , H01M10/0525 , H01M10/54 , Y02P10/234 , Y02W30/84
摘要： The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In the present invention, a positive electrode material is immersed in an acidic solution together with a metal having a lower reduction potential than a reduction potential of hydrogen, whereby valuable metals are leached out from a positive-electrode active substance.
摘要翻译： 本发明提供了一种有价值的金属浸出方法和有价值的金属收集方法，其中有价值的金属可以有效地浸出，可以减少所用的还原剂的量，并且可以实现成本降低。 在本发明中，将正极材料与具有比还原电位低的还原电位的金属一起浸渍在酸性溶液中，由此从正极活性物质中浸出有价值的金属。
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公开(公告)号：US08974755B2
公开(公告)日：2015-03-10
申请号：US13993661
申请日：2011-12-16
申请人： Jaakko Leppinen , Teppo Riihimäki , Mikko Ruonala
发明人： Jaakko Leppinen , Teppo Riihimäki , Mikko Ruonala
CPC分类号： C22B23/043 , C22B23/0415 , C22B23/0461
摘要： The invention relates to a method for separating nickel and other valuable metals particularly from material having low nickel content, which contains iron and magnesium in addition to nickel and other valuable metals. The material having low nickel content is subjected to pulping and atmospheric leaching in acidic and oxidizing conditions, in which the majority of the metals in the material dissolve and the iron is partially precipitated. The precipitated iron is separated from the solution, after which nickel and the other dissolved valuable metals are precipitated as sulphides.
摘要翻译： 本发明涉及一种用于分离镍和其它有价值金属的方法，特别是镍含量低的材料，除了镍和其它有价值的金属之外还含有铁和镁。 在酸性和氧化条件下，具有低镍含量的材料进行制浆和大气浸出，其中材料中的大部分金属溶解并且铁部分沉淀。 将沉淀的铁从溶液中分离出来，之后镍和其他溶解的有价金属作为硫化物沉淀。
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公开(公告)号：US20150044112A1
公开(公告)日：2015-02-12
申请号：US14370841
申请日：2012-12-27
发明人： Satoshi Matsubara , Osamu Nakai , Yoji Kyoda , Takashi Sakamoto
IPC分类号： C22B3/00
CPC分类号： C22B23/0415 , B01J3/04 , B01J4/008 , B01J2219/00182 , C22B3/02 , C22B3/04 , Y02P10/234
摘要： The present invention is such that, with H1 being the height from a slurry outlet to a control liquid level, H2 being the height from the control liquid level to the top of a flash vessel, and being the diameter of the flash vessel, 0.35D≦H1≦0.45D, and 0.75D≦H2≦0.85D, and at least one liquid level sensor detects a slurry liquid surface at a control liquid level; when the liquid level sensor detects a slurry liquid surface which has risen, a slurry discharge valve installed on a slurry discharge pipe derived from the flash vessel is opened; and when the liquid level sensor detects a slurry liquid surface which has fallen, the slurry discharge valve is closed, whereby opening and closing of the valve is appropriately controlled thereby to reduce troubles with a steam discharge pipe, the slurry discharge pipe, and the slurry discharge valve.
摘要翻译： 本发明使得H1是从浆料出口到控制液面的高度，H 2是从控制液面到闪蒸容器顶部的高度，并且是闪蒸容器的直径，0.35D＆nlE ; H1＆nlE; 0.45D和0.75D＆nlE; H2＆nlE; 0.85D，并且至少一个液位传感器检测处于控制液位的浆液表面; 当液位传感器检测到已经升高的浆液液面时，打开安装在来自闪蒸容器的浆料排出管上的浆料排出阀; 当液位传感器检测到已经下降的浆液液面时，浆料排出阀关闭，从而适当地控制阀的打开和关闭，从而减少蒸汽排出管，浆料排出管和浆料的故障 排放阀。
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公开(公告)号：US20140262816A1
公开(公告)日：2014-09-18
申请号：US13802000
申请日：2013-03-13
发明人： Nitin Goel , Ari Gabriel Partanen , Wayne W. Hazen , Phil Rooke
CPC分类号： C25C1/08 , C22B3/0005 , C22B23/0415 , C22B23/0453 , C25C7/02 , Y02P10/234
摘要： Various embodiments provide a method comprising leaching a cobalt bearing material to form a slurry, filtering the slurry to yield solids and a cobalt bearing liquid phase, performing a solution extraction of the cobalt bearing liquid phase to yield a purified cobalt bearing liquid phase, precipitating cobalt gypsum by adding lime to a first portion of the purified cobalt bearing liquid phase, and recycling the cobalt gypsum to the leaching.
摘要翻译： 各种实施方案提供了一种方法，包括浸出含钴材料以形成浆料，过滤浆料以产生固体和含钴液相，进行含钴液相的溶液萃取以产生纯化的含钴液相，沉淀钴 通过将石灰添加到纯化的含钴液相的第一部分，并将钴石膏再循环到浸出中来获得石膏。
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9.发明申请VALUABLE METAL LEACHING METHOD, AND VALUABLE METAL COLLECTION METHOD EMPLOYING THE LEACHING METHOD 有权有价值的金属浸出方法，以及使用浸出方法的有价值的金属收集方法公开(公告)号：US20130269484A1
公开(公告)日：2013-10-17
申请号：US13976160
申请日：2012-01-27
申请人： Hitoshi Ishida , Yukie Kawakami , Keiji Kudo , Satoshi Asano
发明人： Hitoshi Ishida , Yukie Kawakami , Keiji Kudo , Satoshi Asano
IPC分类号： C22B7/00
CPC分类号： C22B7/006 , C22B7/007 , C22B23/0415 , C22B26/12 , H01M4/525 , H01M10/0525 , H01M10/54 , Y02P10/234 , Y02W30/84
摘要： The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In the present invention, a positive electrode material is immersed in an acidic solution together with a metal having a lower reduction potential than a reduction potential of hydrogen, whereby valuable metals are leached out from a positive-electrode active substance.
摘要翻译： 本发明提供了一种有价值的金属浸出方法和有价值的金属收集方法，其中有价值的金属可以有效地浸出，可以减少所用的还原剂的量，并且可以实现成本降低。 在本发明中，将正极材料与具有比还原电位低的还原电位的金属一起浸渍在酸性溶液中，由此从正极活性物质中浸出有价值的金属。
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公开(公告)号：US20120213681A1
公开(公告)日：2012-08-23
申请号：US13364107
申请日：2012-02-01
IPC分类号： C01G53/00
CPC分类号： C22B3/42 , C22B23/0415 , C22B23/0453 , Y02P10/234
摘要： The present invention refers to a direct purification process of a nickel laterite leaching effluent including adjusting a pH of a leaching solution, employing an ion exchange resin to adsorb nickel and copper selectively over ferric or ferrous iron, and recovering nickel.
摘要翻译： 本发明涉及一种镍红土浸出液的直接纯化方法，包括调节浸出溶液的pH值，采用离子交换树脂选择性地吸附镍和铜，并对镍和镍进行回收。
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