-
公开(公告)号：US07563421B2
公开(公告)日：2009-07-21
申请号：US11125325
申请日：2005-05-10
IPC分类号： C22D23/00
CPC分类号： C22B23/0461 , C22B15/0093 , C22B23/043 , Y02P10/236
摘要： A hydrometallurgical process based on pressure leaching at elevated temperature for recovering nickel from nickel oxide ores, characterized by a simplified and efficient process as a whole, realizing a simplified leaching stage, reduced neutralizer consumption and precipitate production in the neutralization stage, and efficient use of recycled water.The hydrometallurgical process of the present invention, comprising a leaching stage which stirs the slurried ore in the presence of sulfuric acid at 220 to 280° C. to produce the leached slurry; solid-liquid separation stage which washes the leached slurry in multi-stages to produce the pregnant liquor and leached residue, the former containing nickel and cobalt; neutralization stage which treats the pregnant liquor in the presence of calcium carbonate incorporated to keep the pH level at 4 or less, while suppressing oxidation of the liquor, to produce the neutralization precipitate slurry and mother liquor for nickel recovery, the former containing trivalent iron; and a sulfide precipitation stage which blows hydrogen sulfide gas into the mother liquor to produce the sulfide solution and barren liquor, the former containing nickel and cobalt.
摘要翻译： 一种基于高温压力浸出以从镍氧化物矿石中回收镍的湿法冶金方法，其特征在于简化和有效的方法作为一个整体，实现了简化的浸出阶段，降低了中和剂消耗和沉淀生产在中和阶段，以及有效利用 循环水。 本发明的湿法冶金方法包括浸出阶段，在220-280℃下在硫酸存在下搅拌浆状矿石以产生浸出的浆料; 固液分离阶段，以多阶段洗涤浸出的浆液，生产怀孕液和浸出残渣，前者含镍和钴; 中和阶段，在所含的碳酸钙存在下处理怀孕液体以保持pH值在4以下，同时抑制液体氧化，产生中和沉淀物浆液和母液用于镍回收，前者含有三价铁; 以及硫化氢沉淀阶段，其将硫化氢气体吹入母液中以产生硫化物溶液和贫浆，前者含有镍和钴。
-
公开(公告)号：US20050265910A1
公开(公告)日：2005-12-01
申请号：US11125325
申请日：2005-05-10
CPC分类号： C22B23/0461 , C22B15/0093 , C22B23/043 , Y02P10/236
摘要： A hydrometallurgical process based on pressure leaching at elevated temperature for recovering nickel from nickel oxide ores, characterized by a simplified and efficient process as a whole, realizing a simplified leaching stage, reduced neutralizer consumption and precipitate production in the neutralization stage, and efficient use of recycled water. The hydrometallurgical process of the present invention, comprising a leaching stage which stirs the slurried ore in the presence of sulfuric acid at 220 to 280° C. to produce the leached slurry; solid-liquid separation stage which washes the leached slurry in multi-stages to produce the pregnant liquor and leached residue, the former containing nickel and cobalt; neutralization stage which treats the pregnant liquor in the presence of calcium carbonate incorporated to keep the pH level at 4 or less, while suppressing oxidation of the liquor, to produce the neutralization precipitate slurry and mother liquor for nickel recovery, the former containing trivalent iron; and a sulfide precipitation stage which blows hydrogen sulfide gas into the mother liquor to produce the sulfide solution and barren liquor, the former containing nickel and cobalt.
摘要翻译： 一种基于高温压力浸出以从镍氧化物矿石中回收镍的湿法冶金方法，其特征在于简化和有效的方法作为一个整体，实现了简化的浸出阶段，降低了中和剂消耗和沉淀生产在中和阶段，以及有效利用 循环水。 本发明的湿法冶金方法包括浸出阶段，在220-280℃下在硫酸存在下搅拌浆状矿石以产生浸出的浆料; 固液分离阶段，以多阶段洗涤浸出的浆液，生产怀孕液和浸出残渣，前者含镍和钴; 中和阶段，在所含的碳酸钙存在下处理怀孕液体以保持pH值在4以下，同时抑制液体氧化，产生中和沉淀物浆液和母液用于镍回收，前者含有三价铁; 以及硫化氢沉淀阶段，其将硫化氢气体吹入母液中以产生硫化物溶液和贫浆，前者含有镍和钴。
-
公开(公告)号：US5888462A
公开(公告)日：1999-03-30
申请号：US67019
申请日：1998-04-28
CPC分类号： C22B23/0453 , C22B3/0005 , Y02P10/234
摘要： A method of solvent extraction of a nickel sulfate solution uses a multi-stage, counter-current, organic solvent extraction system composed of at least two extractors connected in series, and includes a first extraction step of feeding a crude nickel sulfate solution that contains sodium and ammonium impurities into a second-stage extractor, wherein it is treated in countercurrent flow and at a pH of 6.5 to 7.0 with an organic extractant fed into the second-stage extractor from the first-stage extractor, to thereby extract some of nickel in the crude nickel sulfate solution into the organic extractant; and a second extraction step of transferring the nickel-containing, organic phase to an organic phase-scrubbing step to remove sodium and ammonium, while transferring the nickel sulfate solution, from the first extraction step and from which some of nickel has been removed, to the first-stage extractor, wherein it is treated in countercurrent flow and at a pH of 5.5 to 6.5 with a fresh organic extractant, to thereby extend the remaining nickel in the nickel sulfate solution into the organic extractant. The nickel-containing organic phase from the second extraction step is divided into two portions, one portion being fed into the second-stage extractor while the other portion is transferred to a by-pass, organic phase-scrubbing step it to remove sodium and ammonium.
摘要翻译： 硫酸镍溶液的溶剂萃取方法使用由串联连接的至少两个萃取器组成的多级，逆流有机溶剂萃取系统，包括第一提取步骤，将含有钠的粗硫酸镍溶液 和铵杂质进入第二级提取器，其中以逆流流动并且在6.5至7.0的pH下用从第一级萃取器进料到第二级萃取器中的有机萃取剂进行处理，从而提取一些镍 将粗硫酸镍溶液加入有机萃取剂中; 以及第二提取步骤，将含镍的有机相转移到有机相洗涤步骤以除去钠和铵，同时从第一提取步骤将镍硫酸盐溶液从其中除去一些镍转移到 第一级萃取器，其中以逆流流动并且在5.5至6.5的pH下用新鲜的有机萃取剂处理，从而将硫酸镍溶液中的剩余的镍延伸到有机萃取剂中。 将来自第二提取步骤的含镍有机相分为两部分，一部分进料到第二阶段萃取器中，而另一部分转移到旁路有机相洗涤步骤中以除去钠和铵 。
-
公开(公告)号：US6149885A
公开(公告)日：2000-11-21
申请号：US67020
申请日：1998-04-28
申请人： Susumu Makino , Naoyuki Tsuchida , Atsushi Goda , Sunao Kanesaka , Masaki Imamura , Kazuyuki Takaishi , Yoshitomo Ozaki
发明人： Susumu Makino , Naoyuki Tsuchida , Atsushi Goda , Sunao Kanesaka , Masaki Imamura , Kazuyuki Takaishi , Yoshitomo Ozaki
CPC分类号： C22B3/0005 , C22B23/0453 , Y02P10/234
摘要： A method of purifying a crude nickel sulfate solution to give pure nickel sulfate through solvent extraction, in which the impurities such as cobalt, calcium, magnesium, iron, zinc, copper, sodium, ammonia and others to be in the crude solution are removed while, if necessary, effectively recovering cobalt, and for which the amount of a neutralizer to be used is reduced and the cost of treating wastewater is also reduced includes an extraction step of adding an organic acid extractant to a crude nickel sulfate solution to thereby extract nickel into the extractant to give a nickel-loaded organic phase, followed by a scrubbing step of scrubbing the organic phase as obtained in the previous extraction step with a nickel-containing scrub solution to thereby remove sodium and ammonia from the organic phase; and a second purifying step of adding a crude nickel sulfate solution to the nickel-retaining organic phase as obtained in the previous first purifying step so as to exchange the nickel in the organic phase with the impurities except sodium and ammonia existing in the crude nickel sulfate solution added in this step, thereby giving a purified nickel sulfate solution and an organic phase containing impurities; and optionally a third purifying step of recovering nickel from the organic the organic phase containing impurities as obtained in the second purifying step, and a step of recovering a valuable metal, cobalt from the organic phase containing impurities.
摘要翻译： 纯化粗硫酸镍溶液以通过溶剂萃取纯化的硫酸镍的方法，其中除去粗溶液中的杂质如钴，钙，镁，铁，锌，铜，钠，氨等，同时 如果需要，有效地回收钴，并且其中使用的中和剂的量减少，并且处理废水的成本也降低包括将有机酸萃取剂加入到粗硫酸镍溶液中以提取镍的提取步骤 进入萃取剂中以得到负载镍的有机相，然后用含镍洗涤溶液洗涤在先提取步骤中获得的有机相的洗涤步骤，从而从有机相中除去钠和氨; 以及第二纯化步骤，将粗硫酸镍溶液加入到先前的第一纯化步骤中得到的镍保留有机相上，以将有机相中的镍与存在于粗硫酸镍中的钠和氨以外的杂质 在此步骤中加入溶液，从而得到纯化的硫酸镍溶液和含有杂质的有机相; 以及任选的第三纯化步骤，从第二纯化步骤中得到的含有杂质的有机相中回收镍，以及从含有杂质的有机相中回收有价值的金属钴的工序。
-
公开(公告)号：US07018605B2
公开(公告)日：2006-03-28
申请号：US10372635
申请日：2003-02-24
CPC分类号： C02F1/70 , C02F2101/20 , C02F2209/04 , Y10S423/02
摘要： A method of sulfidation removal of zinc using hydrogen sulfide is provided, desirably at a temperature at 60° C. or lower, wherein in a container that is pressurized at 0.1 MPa or less with respect to atmospheric pressure, by making the pH of the solution 1.5 to 4.0, and the concentration of hydrogen sulfide in gas 2 volume % or greater in equilibrium with the hydrogen sulfide dissolved in the solution, the zinc in solution is removed by sulfidation to 1 mg/liter or less.
-
公开(公告)号：US08584546B2
公开(公告)日：2013-11-19
申请号：US12545508
申请日：2009-08-21
申请人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
发明人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
IPC分类号： F16H1/24
CPC分类号： F16H25/2219
摘要： A ball screw mechanism is equipped with a ball screw shaft formed from a metallic material, a displacement nut inserted over an outer circumferential side of the ball screw shaft, steel balls installed between a first screw groove formed on the ball screw shaft and a second screw groove formed in the displacement nut, and a pair of first and second return members, through which the steel balls are circulated between one end side and another end side of the displacement nut. The first and second return members include main body parts mounted respectively onto one end and another end of the displacement nut, and cylindrical parts that project outwardly with respect to the main body parts. A return passage, through which the steel balls are circulated, is formed inside of the main body parts and the cylindrical parts.
摘要翻译： 滚珠丝杠机构配备有由金属材料形成的滚珠丝杠轴，插入滚珠丝杠轴的外周侧的移动螺母，安装在形成于滚珠丝杠轴上的第一螺旋槽与第二螺丝 形成在位移螺母中的槽，以及一对第一和第二返回构件，钢球通过该一对第一和第二返回构件在位移螺母的一端侧和另一端侧之间循环。 第一和第二返回构件包括分别安装在位移螺母的一端和另一端的主体部分和相对于主体部分向外突出的圆柱形部件。 钢球循环的返回通道形成在主体部分和圆柱形部分的内部。
-
公开(公告)号：US20100043583A1
公开(公告)日：2010-02-25
申请号：US12545508
申请日：2009-08-21
申请人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
发明人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
IPC分类号： F16H25/22
CPC分类号： F16H25/2219
摘要： A ball screw mechanism is equipped with a ball screw shaft formed from a metallic material, a displacement nut inserted over an outer circumferential side of the ball screw shaft, steel balls installed between a first screw groove formed on the ball screw shaft and a second screw groove formed in the displacement nut, and a pair of first and second return members, through which the steel balls are circulated between one end side and another end side of the displacement nut. The first and second return members include main body parts mounted respectively onto one end and another end of the displacement nut, and cylindrical parts that project outwardly with respect to the main body parts. A return passage, through which the steel balls are circulated, is formed inside of the main body parts and the cylindrical parts.
摘要翻译： 滚珠丝杠机构配备有由金属材料形成的滚珠丝杠轴，插入滚珠丝杠轴的外周侧的移动螺母，安装在形成于滚珠丝杠轴上的第一螺旋槽与第二螺丝 形成在位移螺母中的槽，以及一对第一和第二返回构件，钢球通过该一对第一和第二返回构件在位移螺母的一端侧和另一端侧之间循环。 第一和第二返回构件包括分别安装在位移螺母的一端和另一端的主体部分和相对于主体部分向外突出的圆柱形部件。 钢球循环的返回通道形成在主体部分和圆柱形部分的内部。
-
公开(公告)号：US20130150193A1
公开(公告)日：2013-06-13
申请号：US13407221
申请日：2012-02-28
申请人： Yoshihiro FUKANO , Shoichi Makado , Masaki Imamura
发明人： Yoshihiro FUKANO , Shoichi Makado , Masaki Imamura
CPC分类号： F16H7/18 , F16H2007/185 , F16H2019/0686
摘要： A tooth-skipping prevention mechanism includes a block, which is inserted displaceably into a first end block in an electric actuator. A cavity having a semicircular shape in cross section is formed in one end of the block facing toward an outer circumferential side of a drive pulley and recessed toward another end side of the block. In addition, the cavity is arranged at a predetermined distance with respect to an outer circumferential surface of a timing belt that is enmeshed with the drive pulley. When the timing belt is moved in a radial outward direction so as to separate away from the drive pulley, movement of the timing belt is restricted, whereby the enmeshed condition of the timing belt and the drive pulley is maintained.
摘要翻译： 防跳跳机构包括可移动地插入电致动器中的第一端块中的块。 在块的一端形成面向驱动带轮的外周侧并向块的另一端侧凹入的具有半圆形截面的空腔。 此外，空腔相对于与驱动滑轮啮合的同步皮带的外周面布置成预定的距离。 当同步皮带沿径向向外的方向移动以远离驱动滑轮分离时，同步皮带的移动被限制，从而保持同步皮带和驱动滑轮的啮合状态。
-
公开(公告)号：US08303458B2
公开(公告)日：2012-11-06
申请号：US12414958
申请日：2009-03-31
申请人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
发明人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
IPC分类号： F16H3/44
CPC分类号： F16H3/54 , F16H25/20 , F16H61/0295 , F16H2025/2087 , Y10T74/18576
摘要： An automatic speed reduction ratio switching apparatus is equipped with a sun gear connected to an input shaft, first and second carriers connected to a feed screw shaft, planetary gears meshed with the sun gear and which are mounted rotatably in the first and second carriers, and an internal gear meshed with the planetary gears and which is capable of movement in an axial direction. A packing member is arranged between the internal gear and the second carrier, for regulating movement in the axial direction of the internal gear, while enabling movement of the internal gear in the axial direction when a thrust force is applied at or above a predetermined value.
摘要翻译： 自动减速比切换装置配备有连接到输入轴的太阳齿轮，连接到进给丝杠轴的第一和第二托架，与太阳齿轮啮合的行星齿轮，并且可旋转地安装在第一和第二托架中，以及 与行星齿轮啮合的能够沿轴向移动的内齿轮。 在内齿轮与第二托架之间配置有用于调节内齿轮的轴向运动的密封构件，同时当推力在预定值以上时能够使内齿轮沿轴向移动。
-
公开(公告)号：US08973453B2
公开(公告)日：2015-03-10
申请号：US13004256
申请日：2011-01-11
申请人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
发明人： Yoshihiro Fukano , Toru Sugiyama , Masaki Imamura
CPC分类号： F16H25/24 , F16H25/2204 , F16H2025/2445 , Y10T74/18648 , Y10T74/18656 , Y10T74/1868
摘要： A feed screw mechanism includes a feed screw shaft connected to a drive source and formed with first screw threads on an outer circumferential surface thereof, and a displacement nut, which is screw-engaged with respect to the feed screw shaft through a plurality of balls. The displacement nut is supported with respect to a slider that makes up an electric actuator by a pair of pins. The pins are inserted and fixed in first pin holes formed in the slider, and distal end portions of the pins are inserted respectively into second pin holes formed in the displacement nut.
摘要翻译： 进料螺杆机构包括连接到驱动源并且在其外周表面上形成有第一螺纹的进给螺杆轴以及通过多个滚珠相对于进给螺杆轴螺纹接合的位移螺母。 位移螺母相对于通过一对销构成电致动器的滑块来支撑。 销被插入并固定在形成在滑块中的第一销孔中，并且销的远端部分别插入形成在位移螺母中的第二销孔中。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.023 秒)
