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1.发明授权公开(公告)号：US08147782B2
公开(公告)日：2012-04-03
申请号：US12235882
申请日：2008-09-23
CPC分类号： C01G53/04 , C01G53/003 , C01P2006/80 , C22B1/2406 , C22B3/0024 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or cobalt, so that the purified nickel hydroxide is suitable for pelletization with iron-containing ores and/or stainless steel production, includes treating the leach solution with a base to form a slurry of mixed hydroxide precipitate and low-nickel barren solution, thickening the slurry to form filter cake, washing the filter cake and contacting it with acid to dissolve nickel and other metals to produce a concentrated nickel-containing solution, subjecting the concentrated nickel-containing solution to solvent extraction with an organic acid extractant to remove metals other than nickel from the nickel-containing solution and form a solvent extraction raffinate of purified nickel solution and treating the solvent extraction raffinate with a base to precipitate the purified nickel hydroxide precipitate.
摘要翻译： 从包含以下一种或多种杂质的含镍浸出溶液中生产纯化的氢氧化镍沉淀物的方法：锰，铜，锌，铁和/或钴，使得纯化的氢氧化镍适于用铁造粒 包括矿石和/或不锈钢生产，包括用碱处理浸出溶液以形成混合氢氧化物沉淀物和低镍贫水溶液的浆料，使浆料增稠以形成滤饼，洗涤滤饼并与酸接触 溶解镍和其他金属以生产浓缩的含镍溶液，用有机酸萃取剂对浓缩的含镍溶液进行溶剂萃取，从含镍溶液中除去镍以外的金属，形成纯化的溶剂萃取残液 镍溶液并用碱处理溶剂萃取残液以沉淀纯化的氢氧化镍p 准备
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2.发明申请公开(公告)号：US20090087361A1
公开(公告)日：2009-04-02
申请号：US12235882
申请日：2008-09-23
IPC分类号： C01G53/04
CPC分类号： C01G53/04 , C01G53/003 , C01P2006/80 , C22B1/2406 , C22B3/0024 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or cobalt, so that the purified nickel hydroxide is suitable for pelletization with iron-containing ores and/or stainless steel production, includes treating the leach solution with a base to form a slurry of mixed hydroxide precipitate and low-nickel barren solution, thickening the slurry to form filter cake, washing the filter cake and contacting it with acid to dissolve nickel and other metals to produce a concentrated nickel-containing solution, subjecting the concentrated nickel-containing solution to solvent extraction with an organic acid extractant to remove metals other than nickel from the nickel-containing solution and form a solvent extraction raffinate of purified nickel solution and treating the solvent extraction raffinate with a base to precipitate the purified nickel hydroxide precipitate.
摘要翻译： 从包含以下一种或多种杂质的含镍浸出溶液中生产纯化的氢氧化镍沉淀物的方法：锰，铜，锌，铁和/或钴，使得纯化的氢氧化镍适于用铁造粒 包括矿石和/或不锈钢生产，包括用碱处理浸出溶液以形成混合氢氧化物沉淀物和低镍贫水溶液的浆料，使浆料增稠以形成滤饼，洗涤滤饼并与酸接触 溶解镍和其他金属以生产浓缩的含镍溶液，用有机酸萃取剂对浓缩的含镍溶液进行溶剂萃取，从含镍溶液中除去镍以外的金属，形成纯化的溶剂萃取残液 镍溶液并用碱处理溶剂萃取残液以沉淀纯化的氢氧化镍p 准备
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公开(公告)号：US20080286182A1
公开(公告)日：2008-11-20
申请号：US12093257
申请日：2006-02-07
CPC分类号： C22B3/08 , C22B3/02 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： THE COMBINED LEACHING PROCESS comprises a dissolution process of the soluble constituents of an ore by means of the combined execution of two or more serial leaching phases with the first phase comprising atmospheric leaching (AL) and the second one pressure leaching (HPAL). This combined process takes place when the intermediate size fraction (0.075-0.5 mm) is submitted to atmospheric leaching (AL), ensuing an effluent with a high concentration of dissolved iron and aluminum as well as high residual acidity. This said effluent is fed in the following acid pressure leaching (HPAL) phase of the fine size fraction (
摘要翻译： 组合浸出方法包括通过两个或多个串联浸出相的组合执行的矿石的可溶性成分的溶解过程，第一相包括大气浸出（AL）和第二次压力浸出（HPAL）。 当中等尺寸级分（0.075-0.5mm）进入大气浸出（AL）时，这种组合过程发生，伴随着高浓度的溶解铁和铝的流出物以及高残留酸度。 将该流出物在精细尺寸级分（<0.075mm）的以下酸性压力浸出（HPAL）相中进料，并且在重新使用游离酸度下，在水解反应中通过铁和铝沉淀再生硫酸，并产生可观的 减少硫酸的添加。
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公开(公告)号：US20090056502A1
公开(公告)日：2009-03-05
申请号：US12197403
申请日：2008-08-25
CPC分类号： C22B3/42 , C22B3/10 , C22B23/0415 , C22B23/0453 , C22B23/0461 , C22B23/0476 , C22B23/0484 , Y02P10/234
摘要： The present invention is related to a hydrometallurgical process to produce nickel as hydroxide, oxide or cathode and produce cobalt preferably as sulfides. The present invention is particularly adequate to process eluate containing nickel and cobalt. Eluates are solutions obtained from elution of ionic exchange resins, loaded (charged) in the RIP (resin-in-pulp) process of ionic exchange, to recover nickel and cobalt from effluent pulps in acid leaching. Following nickel and cobalt recovery in a RIP circuit, they are separated from each other via a continuous ionic exchange process, after which the nickel eluate is formed to produce nickel as nickel oxide by a pyrohydrolysis process.
摘要翻译： 本发明涉及一种生产镍作为氢氧化物，氧化物或阴极并且优选以硫化物生产钴的湿法冶金方法。 本发明特别适于处理含有镍和钴的洗脱液。 洗脱液是离子交换树脂的洗脱获得的离子交换树脂的溶液，其负载（带电）在离子交换的RIP（树脂 - 纸浆）方法中，以在酸浸出中从流出纸浆中回收镍和钴。 在RIP电路中的镍和钴回收之后，它们通过连续的离子交换方法彼此分离，之后形成镍洗脱液，通过热水解过程产生镍作为氧化镍。
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5.发明申请HYDROMETALLURGICAL PROCESS USING RESIN-NEUTRALIZED-SOLUTION OF A HEAP LEACHING EFFLUENT 审中-公开使用树脂中和溶液浸出液的液压工艺公开(公告)号：US20090056501A1
公开(公告)日：2009-03-05
申请号：US12191345
申请日：2008-08-14
申请人： Flavia Dutra Mendes
发明人： Flavia Dutra Mendes
IPC分类号： C22B5/00
CPC分类号： C22B23/0407 , C22B3/42 , C22B23/0415 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： The present invention refers to a hydro-metallurgical process using resin-in-neutralized-solution in heap leaching effluent. More specifically, the process is applicable to lateritic ore, nickel oxidate, cobalt oxidate or a mixture containing metals of interest—nickel, cobalt and other secondary metals, wherein ore is leached by adding an acid or a base with possible pH adjustment, aided by acid or base with neutralization of heap leaching effluent, by adding lime, limestone, soda or ammonia in the temperature of 70° to 95° C. range, at pH in the pH4 to pH5 range; wherein soluble impurity species can be reduced or cementing/complexation techniques, comprising a neutralized leaching effluent, as slurry, made up of solid particles (precipitated compounds) and solution, but ore-free; which is fed into the RINS (resin-in-neutralized-solution) circuit, with no need for solid-liquid separation; wherein the resin-in-neutralized-solution circuit comprises multiple sequential vats stirred in countercurrent flow and wherein the loaded resin is separated from the slurry by screening.
摘要翻译： 本发明涉及在堆浸流出物中使用中和液中的溶液的水力冶金方法。 更具体地说，该方法适用于红土矿，镍氧化物，氧化钴或含镍金属，钴等二次金属的混合物，其中通过添加可能的pH调节的酸或碱来浸出矿石，辅助于 酸或碱，通过在70〜95℃的温度范围内，在pH4〜pH5范围内添加石灰，石灰石，苏打或氨，中和堆浸流出物。 其中可溶性杂质物质可以被还原，或者由固体颗粒（沉淀化合物）和溶液构成但不含矿石的中和的浸出流出物作为浆液， 其被馈送到RINS（中和树脂溶液）回路中，不需要固液分离; 其中所述中和溶液回路包括逆流搅拌的多个连续的槽，并且其中所述负载的树脂通过筛选与所述浆料分离。
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6.发明申请Hybrid Process Using Ion Exchange Resins in the Selective Recovery of Nickel and Cobalt from Leaching Effluents 有权使用离子交换树脂从浸出液中选择性还原镍和钴的混合工艺公开(公告)号：US20080289448A1
公开(公告)日：2008-11-27
申请号：US12184951
申请日：2008-08-01
IPC分类号： C22B3/24
CPC分类号： C22B23/043 , B01J39/04 , B01J45/00 , B01J47/026 , C22B3/42 , C22B23/0453 , C22B23/0461 , C22B23/0476 , Y02P10/234
摘要： “HYBRID PROCESS USING ION EXCHANGE RESINS IN THE SELECTIVE RECOVERY OF NICKEL AND COBALT FROM LEACHING EFFLUENTS” The present invention is directed to a hybrid process using ion exchange resins in the selective recovery of nickel and cobalt of leaching effluents that is comprised of the steps of processing (1) the laterite ore (M), which is then treated through leaching (2) (either atmospheric or under pressure), considering solutions from the solid-liquid separation step of existing plants already in operation (2) as well, in a way that the downstream process comprises an ion exchange hybrid circuit, wherein the first ion exchange step (3) with resins (Re) exhibits specific selectivity conditions for the removal of iron, aluminum and copper and an increased pH, and the second ion exchange step (4) allows the removal of nickel and cobalt.
摘要翻译： “使用离子交换树脂在镍和钴从浸出液中选择性回收的混合工艺”本发明涉及一种使用离子交换树脂在浸出流出物的镍和钴的选择性回收中的混合方法，该方法包括以下步骤： 处理（1）红土矿（M），然后根据已经在运行的现有工厂的固液分离步骤（2）中的溶液，然后通过浸出（2）（大气压或压力下）进行处理 下游方法包括离子交换混合回路的方式，其中具有树脂（Re）的第一离子交换步骤（3）表现出用于去除铁，铝和铜以及增加的pH的特定选择性条件，并且第二离子交换 步骤（4）允许去除镍和钴。
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公开(公告)号：US08597601B2
公开(公告)日：2013-12-03
申请号：US13487097
申请日：2012-06-01
IPC分类号： C22B23/00
CPC分类号： C22B3/08 , C22B23/043 , Y02P10/234
摘要： A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii) selective dissolution.
摘要翻译： 一种使用硫酸铁平衡来降低总体酸消耗和铁提取的方法，该方法包括以下步骤：（i）硫酸化; （ii）选择性热解和（iii）选择性溶解。
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公开(公告)号：US20130028816A1
公开(公告)日：2013-01-31
申请号：US13487097
申请日：2012-06-01
CPC分类号： C22B3/08 , C22B23/043 , Y02P10/234
摘要： A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii) selective dissolution.
摘要翻译： 一种使用硫酸铁平衡来降低总体酸消耗和铁提取的方法，该方法包括以下步骤：（i）硫酸化; （ii）选择性热解和（iii）选择性溶解。
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9.发明授权Resin-in-leach process to recover nickel and/or cobalt in ore leaching pulps 有权在矿石浸取纸浆中回收镍和/或钴的浸出浸出工艺公开(公告)号：US07901484B2
公开(公告)日：2011-03-08
申请号：US12183231
申请日：2008-07-31
申请人： Flavia Dutra Mendes
发明人： Flavia Dutra Mendes
CPC分类号： C22B23/0453 , C22B3/42 , C22B23/0415 , C22B23/0461 , Y02P10/234
摘要： A hydrometallurgical resin-in-leach (RIL) process for directly recovering nickel and/or cobalt. Simultaneous pulp leaching by adding an acid or base, dissolves the metals of interest with adsorption of the metals rendered soluble in on ionic exchange resin. Following elution of the changed resin, purification of nickel and cobalt present in the eluate can be recovered by conventional methods, such as precipitation, extraction by solvents and membranes. The regenerated resin is recirculated for further use.
摘要翻译： 用于直接回收镍和/或钴的湿法冶金树脂浸出（RIL）方法。 通过加入酸或碱同时进行纸浆浸出，使吸附的金属溶解在离子交换树脂上，从而溶解感兴趣的金属。 在洗脱改变的树脂后，洗脱液中存在的镍和钴的纯化可以通过常规方法回收，例如沉淀，通过溶剂和膜提取。 再生树脂被再循环以供进一步使用。
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公开(公告)号：US08961649B2
公开(公告)日：2015-02-24
申请号：US12198229
申请日：2008-08-26
CPC分类号： C22B1/08 , C22B3/10 , C22B23/005 , C22B23/04 , C22B23/0407 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the group consisting of at least one of nickel, cobalt and copper. The method includes the steps of: contacting the oxide ore with hydrogen chloride gas to obtain chlorides of the first and second metals and subjecting at least the first and second metals to pyrohydrolysis at a predetermined temperature to decompose the chlorides of the first metal into oxides. The method also includes the step of mixing the oxides of the first metal and the chlorides of the second metal in an aqueous solution to dissolve the chlorides of the second metal and recovering the dissolved ions of the second metal from the aqueous solution.
摘要翻译： 本公开提供了一种从氧化物矿中回收贱金属的方法。 矿石包括选自铁和铝中的至少一种的第一金属和选自镍，钴和铜中的至少一种的第二金属。 该方法包括以下步骤：使氧化矿石与氯化氢气体接触，得到第一和第二金属的氯化物，并使至少第一和第二金属在预定温度下进行热解，以将第一金属的氯化物分解为氧化物。 该方法还包括将第一金属的氧化物和第二金属的氯化物在水溶液中混合以溶解第二金属的氯化物并从水溶液中回收第二金属的溶解离子的步骤。
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