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公开(公告)号：US09068241B2
公开(公告)日：2015-06-30
申请号：US13996164
申请日：2012-01-24
Applicant: Hiroyuki Mitsui , Osamu Nakai
Inventor： Hiroyuki Mitsui , Osamu Nakai
CPC classification number: C22B1/00 , C22B23/005 , C22B23/0407 , C22B23/043
Abstract: A method of producing an ore slurry includes pulverizing and classifying steps as well as an ore slurry condensing step, wherein the slurry condensing step uses as a flocculant solution a diluted solution of the flocculant that satisfies the conditions of: (A) a flocculant molecular weight of 8×106 to 20×106 and (B) a flocculant dilution ratio of 0.1 to 0.5 g/L, and with respect to the added amount of the flocculant, a flocculant solution having an amount corresponding to 50 to 150 g of the flocculant amount per ton of dried solid components of the ore slurry is added to the ore slurry so as to be made in contact therewith for a sufficient period of time, with the temperature of the slurry being set in a range from 35 to 45° C. upon transporting the slurry from the condensing step to the next process.
Abstract translation: 矿石浆料的制造方法包括粉碎和分级工序以及矿浆冷凝工序，其中，浆料冷凝工序使用满足以下条件的絮凝剂的稀释溶液作为絮凝剂溶液：（A）絮凝剂分子量 为8×106〜20×106，（B）为0.1〜0.5g / L的絮凝剂稀释比，相对于絮凝剂的添加量，使用相当于50〜150g的絮凝剂的絮凝剂 将矿石浆料的每吨干燥固体成分的量加入到矿浆中以使其与其接触足够长的时间，浆料的温度设定在35至45℃的范围内。 将浆料从冷凝步骤运送到下一个过程。
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2.发明授权公开(公告)号：US08911531B2
公开(公告)日：2014-12-16
申请号：US13394202
申请日：2010-10-01
Applicant: Osamu Nakai , Toru Kitazaki , Shinichi Heguri , Yoshitomo Ozaki , Keisuke Shibayama
Inventor： Osamu Nakai , Toru Kitazaki , Shinichi Heguri , Yoshitomo Ozaki , Keisuke Shibayama
CPC classification number: C22B23/04 , C22B3/02 , C22B23/0407 , Y02P10/234
Abstract: A hydrometallurgical plant for nickel laterite ore extraction having a plurality of treatment facility lines wherein the plant is capable of minimizing a decrease in throughput when line failure occurs and efficiently restoring normal operation status Each line of the treatment facility includes a pretreatment step, a leaching step, a solid-liquid separation step, a neutralization step, a zinc removal step, a sulfurization step and a detoxification step. The lines are coupled by pipelines, each having a valve, installed after the solid-liquid separation step for sending a liquid from the solid-liquid separation step to the neutralization step in each line and/or after the sulfurization step for sending a liquid from the sulfurization step to the detoxification step in each line.
Abstract translation: 一种用于镍红土矿石提取的湿法冶金设备，其具有多个处理设备线，其中所述设备能够最小化发生线路故障时的吞吐量的降低并且有效地恢复正常操作状态。处理设备的每一行包括预处理步骤，浸出步骤 固液分离工序，中和工序，脱锌工序，硫化工序和脱毒工序。 这些管线通过管道连接，每个管道具有阀，其在固液分离步骤之后安装，用于将液体从固 - 液分离步骤发送到每一行中的中和步骤和/或在硫化步骤之后将液体从 将硫化步骤进行到每一行的排毒步骤。
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3.发明申请公开(公告)号：US20130199620A1
公开(公告)日：2013-08-08
申请号：US13639793
申请日：2011-04-20
Applicant: Hiroyuki Mitsui , Osamu Nakai , Moritarou Asatori
Inventor： Hiroyuki Mitsui , Osamu Nakai , Moritarou Asatori
IPC: C22B3/00
CPC classification number: C22B23/0453 , C22B3/02 , C22B23/0461 , C22B23/0469 , Y02P10/234 , Y10T137/0396 , Y10T137/3124 , Y10T137/3127 , Y10T137/794 , Y10T137/86187 , Y10T137/86292
Abstract: A sulfurization facility, where the sulfurizing reaction is conducted in a wet smelting for nickel oxide ore, is improved particularly with the structural modification of its liquid storage vessels so that the consumption of a hydrogen sulfide gas used in a sulfurization step and the consumption of an alkali solution used for processing an exhaust gas can be reduced and the overall cost of operation will thus be minimized. The present invention is directed towards a liquid storage apparatus for use in the sulfurization facility for sulfurizing a sulfate solution to produce a sulfide, the apparatus comprising a plurality of liquid storage vessels (11n) for storing a slurry or a filtrate after solid/liquid separation, a collective conduit (12) for collectively passing an inactive gas to be fed into the liquid storage vessels (11n) or an exhaust gas discharged from the liquid storage vessels (11n), and a pressure control conduit (13) for receiving the flow of the inactive gas and the exhaust gas in order to control the pressure at the inner side of the liquid storage vessels (11n). The pressure control conduit (13) is connected by a junction (30) to the collective conduit (12) and equipped with a pair of pressure control valves (31), (32) mounted at both, front and rear, sides of the junction (30) communicating to the collective conduit (12).
Abstract translation: 特别是对于其液体储存容器的结构改性，硫化反应在湿法冶炼镍氧化物矿石中进行硫化反应，从而硫化步骤中使用的硫化氢气体的消耗和 可以减少用于处理废气的碱溶液，从而将整体操作成本最小化。 本发明涉及一种在硫化设备中用于硫化硫酸盐溶液以产生硫化物的液体储存装置，该装置包括用于在固/液分离之后储存浆液或滤液的多个液体储存容器（11n） ，用于集中通过待进料到液体储存容器（11n）中的惰性气体或从液体储存容器（11n）排出的废气的集合管道（12），以及用于接收流体的压力控制管道（13） 的惰性气体和废气，以便控制液体储存容器（11n）内侧的压力。 压力控制管道（13）通过接头（30）连接到集合管道（12）并且配备有一对安装在接合部的前后两侧的压力控制阀（31），（32） （30）与集体导管（12）连通。
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公开(公告)号：US20100018350A1
公开(公告)日：2010-01-28
申请号：US12458677
申请日：2009-07-20
Applicant: Keisuke Shibayama , Yoshitomo Ozaki , Osamu Nakai
Inventor： Keisuke Shibayama , Yoshitomo Ozaki , Osamu Nakai
CPC classification number: C22B23/043 , C22B23/0461
Abstract: The hydrometallurgical process for a nickel oxide ore comprising a step (1) for obtaining an aqueous solution of crude nickel sulfate by High Pressure Acid Leach of a nickel oxide ore; a step (2) for obtaining a zinc free final solution formed; a step (3) for obtaining a waste solution; and a step (4) for scrubbing a hydrogen sulfide gas in exhaust gas, wherein utilization efficiency of hydrogen sulfide gas is enhanced while maintaining nickel recovery rate.It is characterized in that at least one kind of the following operations (a) to (d) is adopted. (a) to adjust total volume (m3) of the sulfurization reactor (B) in the above step (3), at a ratio of 0.2 to 0.9, relative to input mass (kg/h) of nickel to be introduced; (b) to evaporate, under negative pressure, slurry in the above step (3), and to add hydrogen sulfide gas recovered to the above step (3); (c) to reuse exhaust gas from the sulfurization reactor in the above step (3), and add it to the step (2); and (d) to subject the waste solution in the above step (3) and exhaust gas in the above step (4) to countercurrent contact, then to introduce the exhaust gas to the scrubber again and to charge waste solution from the scrubber into the sulfurization reactor in the step (3).
Abstract translation: 一种氧化镍矿石的湿法冶金方法，包括通过氧化镍矿的高压酸浸获得粗硫酸镍水溶液的步骤（1） 用于获得形成的无锌最终溶液的步骤（2）; 用于获得废液的步骤（3）; 以及用于洗涤废气中的硫化氢气体的步骤（4），其中提高硫化氢气体的利用效率，同时保持镍回收率。 其特征在于采用以下操作（a）至（d）中的至少一种。 （a）相对于导入的镍的输入质量（kg / h）以0.2〜0.9的比例调节上述工序（3）中的硫化反应器（B）的总体积（m3） （b）在负压下蒸发上述步骤（3）中的浆料，并加入回收到上述步骤（3）中的硫化氢气体; （c）在上述步骤（3）中重新利用来自硫化反应器的废气，并将其添加到步骤（2）中; 和（d）使上述步骤（3）中的废液和上述步骤（4）中的废气逆流接触，然后再次将废气引入洗涤器，并将来自洗涤器的废液送入 步骤（3）中的硫化反应器。
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5.发明申请公开(公告)号：US20130207325A1
公开(公告)日：2013-08-15
申请号：US13639788
申请日：2011-04-14
Applicant: Hiroyuki Mitsui , Osamu Nakai , Tooru Kitazaki , Moritarou Asatori
Inventor： Hiroyuki Mitsui , Osamu Nakai , Tooru Kitazaki , Moritarou Asatori
IPC: C22B3/00
CPC classification number: C22B23/043 , C22B3/02 , C22B23/0407 , C22B23/0461 , Y02P10/234
Abstract: A wet smelting plant for nickel oxide ore is provided in which, even when a serious trouble occurs in a processing facility, the preparation period of time of the processing facility required for discontinuing and restarting the operation can be minimized. The wet smelting plant for nickel oxide ore (20) comprises two or more series of the processing facilities, each processing facility including a step operating facility, a utility feed facility (8a), (8b), a hydrogen sulfide feed facility (10a), (10b), a flocculant feed facility (14a), (14b), and a neutralizer feed facility (12a), (12b) and is featured in that connecting installations are further provided for connecting between the utility feed facilities (8a) and (8b), between the hydrogen sulfide feed facilities (10a) and (10b), between the flocculant feed facilities (14a) and (14b), and between the neutralizer feed facilities (12a) and (12b) in order to make the delivery of utility supplies, hydrogen sulfide, flocculant, and neutralizer for mutual substitution.
Abstract translation: 提供了一种用于氧化镍矿石的湿式熔炼设备，其中即使在处理设备中发生严重故障的情况下，可以最小化停止和重新启动操作所需的处理设备的准备时间。 用于氧化镍矿石（20）的湿式熔炼设备包括两个或更多个处理设备系列，每个处理设备包括步骤操作设施，公用设备供应设施（8a），（8b），硫化氢供应设备（10a） ，（10b），絮凝剂供给设备（14a），（14b）和中和器供给设备（12a），（12b），其特征在于，连接装置还设置用于连接公用设施供给设备（8a）和 （8b）之间，在硫化氢供给设备（10a）和（10b）之间，在絮凝剂供给设备（14a）和（14b）之间以及中和器供给设备（12a）和（12b）之间， 公用事业用品，硫化氢，絮凝剂和中和剂相互替代。
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Patent Agency Ranking
公开(公告)号：US07964165B2
公开(公告)日：2011-06-21
申请号：US12458796
申请日：2009-07-23
Applicant: Osamu Nakai , Yoshitomo Ozaki , Keisuke Shibayama , Takao Ooishi , Satoshi Matsumoto
Inventor： Osamu Nakai , Yoshitomo Ozaki , Keisuke Shibayama , Takao Ooishi , Satoshi Matsumoto
IPC: C22B23/00
CPC classification number: C01G9/08 , C01G53/00 , C01G53/11 , C22B15/0093 , C22B19/26 , C22B23/043 , C22B23/0461 , Y02P10/234 , Y02P10/236
Abstract: The separation method for zinc sulfide, in the hydrometallurgical process by a High Pressure Acid Leach for nickel oxide ore comprising leaching and solid/liquid separation step, neutralization step, zinc removal step, and nickel recovery step, which can inhibit clogging of a filter cloth and reduce a frequency of washing operation and replacement operation of a filter cloth by improving filtration performance of zinc sulfide, and inhibit decrease of nickel recovery ratio, in the zinc removal step in which zinc sulfide is formed by adding a sulfurizing agent to the neutralization final liquid containing zinc as well as nickel and cobalt and zinc sulfide is separated to obtain a mother liquid for nickel recovery containing nickel and cobalt.The separation method for zinc sulfide of the present invention is characterized in that in the above-described neutralization step, the leach residue is added to the leach liquor, and pH of the neutralization final liquid is adjusted so as to fall to the range from 3.0 to 3.5, and in the zinc removal step, the suspended solid comprising the neutralized precipitate and the leaching reside are kept remained in said neutralization final liquid so that turbidity thereof falls in the range from 100 to 400 NTU.
Abstract translation: 硫化锌的分离方法，在通过高压酸浸法进行的氧化镍矿石的湿法冶金工艺中，包括浸出和固/液分离步骤，中和步骤，锌除去步骤和镍回收步骤，其可以抑制滤布堵塞 通过提高硫化锌的过滤性能来降低洗涤操作和更换操作的频率，并且通过在中和最终添加硫化剂的锌硫化物的除锌步骤中抑制镍回收率的降低 分离含有锌以及镍和钴和硫化锌的液体，以获得含镍和钴的镍回收母液。 本发明的硫化锌的分离方法的特征在于，在上述中和工序中，将浸出残渣加入到浸出液中，调节中和最终液体的pH，使其降至3.0 至3.5，并且在锌去除步骤中，将包含中和的沉淀物和浸出的悬浮固体保持在所述中和最终液体中，使得其浊度在100至400NTU的范围内。
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公开(公告)号：US06463781B2
公开(公告)日：2002-10-15
申请号：US09777795
申请日：2001-02-06
Applicant: Toshihiro Watanabe , Osamu Nakai
Inventor： Toshihiro Watanabe , Osamu Nakai
IPC: B21D4320
CPC classification number: F16F1/3842 , B21D43/20
Abstract: A system for drawing an outer cylinder of a rubber bush comprising an inner cylinder serving as a shaft member, the outer cylinder disposed around the inner cylinder and a rubber elastic body interposed between the inner cylinder and the outer cylinder, comprising first and second turning tables each having at least two piling portions on which the rubber bushes to be drawn are piled up in a vertical direction; first and driving apparatuses for bringing up the rubber bushes piled up on the piling portion of the first and second turning tables to a predetermined robot grasping position; a drawing apparatus having a die for drawing the outer cylinder of the rubber bush; a robot apparatus for grasping and transferring the rubber bush located at the robot grasping position to set the same to a predetermined position of the die; a control apparatus for controlling the robot apparatus such that the rubber bushes from the piling portion of one of the first and second turning tables are sequentially transferred to the die, and if the transfer of all the former rubber bushes from the piling portion was completed, the rubber bushes from the piling portion of the other one of the first and second turning tables and transferred.
Abstract translation: 一种用于绘制橡胶衬套的外筒的系统，包括用作轴构件的内筒，设置在内筒周围的外筒和插入在内筒和外筒之间的橡胶弹性体，包括第一和第二转台 每个具有至少两个打桩部分，待拉伸的橡胶衬套在其上沿垂直方向堆积; 第一和驱动装置，用于将堆积在第一和第二转台的打桩部分上的橡胶衬套提升到预定的机器人抓握位置; 具有用于拉伸橡胶衬套的外筒的模具的拉丝装置; 用于抓握和传送位于机器人抓握位置处的橡胶衬套以将其设置到模具的预定位置的机器人装置; 用于控制机器人装置的控制装置，使得来自第一和第二转台中的一个的打桩部分的橡胶衬套被顺序地传送到模具，并且如果从打桩部分传送所有的原始橡胶衬套完成， 所述橡胶衬套从所述第一和第二转台中的另一个的打桩部分被转移。
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公开(公告)号：US4273308A
公开(公告)日：1981-06-16
申请号：US90716
申请日：1979-11-02
Applicant: Osamu Nakai
Inventor： Osamu Nakai
Abstract: A concentric rotary valve having a rotatable stem of a valve disc supported by bearing portions and metal seats mounted in a valve housing to contact metal seats on the valve disc. Clearances in directions parallel to a closed disc surface and radial of the valve stem are barely enough to permit a shift of the valve disc to provide a good seat-to-seat contact when the valve is closed, and clearances in directions normal to the closed disc surface and radial of the rotatable stem are barely enough to permit normal rotations of the stem.
Abstract translation: 同心旋转阀，其具有由轴承部分支撑的阀盘的可旋转杆和安装在阀壳体中的金属座，以接触阀盘上的金属座。 与阀杆的闭合盘表面和径向平行的方向的间隙几乎不足以允许阀盘的移位，以在阀关闭时提供良好的座椅对座接触，并且在垂直于闭合的方向上的方向间隙 可旋转杆的盘表面和径向几乎不足以允许杆的正常旋转。
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公开(公告)号：US09751783B2
公开(公告)日：2017-09-05
申请号：US13583145
申请日：2011-01-06
Applicant: Hiroshi Kobayashi , Tatsuya Higaki , Hirofumi Shoji , Norihisa Toki , Keiji Kudo , Hiroyuki Mitsui , Osamu Nakai
Inventor： Hiroshi Kobayashi , Tatsuya Higaki , Hirofumi Shoji , Norihisa Toki , Keiji Kudo , Hiroyuki Mitsui , Osamu Nakai
IPC: B01D21/01 , C02F1/52 , B03D3/00 , C02F1/78 , C22B47/00 , C01F7/00 , C22B21/00 , C02F1/72 , C02F1/66 , C02F1/64 , B01D21/00 , C02F1/00 , C01G45/00 , C01F1/00 , C01G45/02 , C02F101/20
CPC classification number: C02F1/66 , C01G45/02 , C02F1/5236 , C02F1/64 , C02F1/72 , C02F1/722 , C02F1/78 , C02F2101/20 , C02F2101/206 , C02F2209/06 , C22B47/00
Abstract: The wastewater treatment method is to obtain demanganized wastewater, through a step wherein an acid or an alkali is added to sulfuric acid acidified wastewater to adjust pH to not less than 4.0 and not more than 6.0, whereby the sulfuric acid acidified wastewater is separated into a dealuminized solution and an aluminum precipitate; a step wherein a slurrying solution is added to the aluminum precipitate to form a slurry, then an alkali is added to adjust pH to not less than 9.0 and not more than 9.5, whereby an pH-adjusted aluminum precipitate slurry is formed; a step wherein an alkali is added to the dealuminized solution to adjust pH to not less than 8.0 and not more than 9.0; and others.
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10.发明授权公开(公告)号：US09068244B2
公开(公告)日：2015-06-30
申请号：US14384616
申请日：2012-04-06
Applicant: Hiroyuki Mitsui , Osamu Nakai , Hirotaka Kawasaki , Hiroshi Kobayashi , Tatsuya Higaki , Atsushi Idegami
Inventor： Hiroyuki Mitsui , Osamu Nakai , Hirotaka Kawasaki , Hiroshi Kobayashi , Tatsuya Higaki , Atsushi Idegami
CPC classification number: C22B3/22 , B03B7/00 , C22B23/005 , C22B23/04 , C22B23/043
Abstract: A method for recovering chromite from ore slurry obtained by processing nickel oxide ore, the raw material, in a plant for the wet smelting of nickel oxide ore. In the method chromite is separated and recovered from an ore slurry obtained from a nickel oxide ore when nickel and cobalt are recovered from the nickel oxide ore. The method has a grain diameter separation step for separating the ore slurry on the basis of a predetermined classification point according to the difference in the grain diameter of particles contained in the supplied ore slurry and a sedimentation separation step for causing the oversized ore slurry separated in the grain diameter separation step to undergo sedimentation and concentration on the basis of a target classification point, and recovering the chromite. The coarse particle content of the oversized ore slurry separated in the grain diameter separation step is adjusted to 30-50%.
Abstract translation: 通过在用于氧化镍矿石的湿法冶炼的设备中加工氧化镍矿石（原材料）而获得的矿石浆料中回收铬铁矿的方法。 在从镍氧化物矿石中回收镍和钴的方法中，从镍氧化物矿石获得的矿浆中分离和回收铬铁矿。 该方法具有粒径分离步骤，用于根据所提供的矿石浆料中所含的颗粒的粒径的差异，根据预定的分级点分离矿石浆料;以及沉淀分离步骤，用于使过大的矿石浆料分离 粒径分离步骤，基于目标分级点进行沉降浓缩，回收铬铁矿。 将在粒径分离步骤中分离的过大矿石浆料的粗颗粒含量调节至30-50％。
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