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公开(公告)号：US08052774B2
公开(公告)日：2011-11-08
申请号：US12659832
申请日：2010-03-23
申请人： Noriyuki Nagase , Satoshi Asano , Masatoshi Takano , Kenji Takeda , Shinichi Heguri , Atsushi Idegami
发明人： Noriyuki Nagase , Satoshi Asano , Masatoshi Takano , Kenji Takeda , Shinichi Heguri , Atsushi Idegami
CPC分类号： C22B15/0071 , C22B3/08 , C22B3/20 , C22B11/042 , Y02P10/214 , Y02P10/234 , Y02P10/236
摘要： Disclosed herein is a method for concentrating gold contained in a leach residue obtained in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral to efficiently separate and recover gold from the leach residue: a gold-bearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and a sink fraction; the float fraction obtained by flotation is desulfurized to obtain a desulfurized product; the desulfurized product is subjected to oxidative roasting to obtain an oxidatively-roasted product; the oxidatively-roasted product is dissolved in a sulfuric acid solution to obtain a copper solution, and a gold-bearing residue is separated and recovered from the copper solution.
摘要翻译： 本文公开了一种用于浓缩在铜湿法冶金方法中获得的浸出残渣中的金的方法，用于从硫化铜矿物中回收铜以有效地从浸出残渣中分离和回收金：含金硫化铜矿物经受压力浸出 在高于102℃和112℃或更低的温度下用硫酸获得浸出残余物，并将浸出残渣进行浮选以将其分离成浮选级分和沉降级分; 通过浮选获得的浮选分数进行脱硫，得到脱硫产物; 对脱硫产物进行氧化焙烧，得到氧化焙烧物; 将氧化焙烧物溶解在硫酸溶液中，得到铜溶液，从铜溶液中分离回收含金残留物。
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公开(公告)号：US20100242681A1
公开(公告)日：2010-09-30
申请号：US12659832
申请日：2010-03-23
申请人： Noriyuki Nagase , Satoshi Asano , Masatoshi Takano , Kenji Takeda , Shinichi Heguri , Atsushi Idegami
发明人： Noriyuki Nagase , Satoshi Asano , Masatoshi Takano , Kenji Takeda , Shinichi Heguri , Atsushi Idegami
CPC分类号： C22B15/0071 , C22B3/08 , C22B3/20 , C22B11/042 , Y02P10/214 , Y02P10/234 , Y02P10/236
摘要： Disclosed herein is a method for concentrating gold contained in a leach residue obtained in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral to efficiently separate and recover gold from the leach residue. According to the method, a gold-bearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and a sink fraction. The float fraction obtained by flotation is desulfurized by heating at a temperature of 250 to 800° C. under an inert atmosphere to obtain a desulfurized product. The desulfurized product is subjected to oxidative roasting by heating at a temperature of 600 to 800° C. under an atmosphere of flowing oxygen or air to obtain an oxidatively-roasted product. The oxidatively-roasted product is dissolved in a sulfuric acid solution to obtain a copper solution, and a gold-bearing residue is separated and recovered from the copper solution.
摘要翻译： 本文公开了一种用于浓缩在铜湿法冶金方法中获得的浸出残渣中所含的金的方法，用于从硫化铜矿物中回收铜以有效地从浸出残渣中分离和回收金。 根据该方法，将含金硫化铜矿物在高于102℃和112℃或更低的温度下用硫酸进行压力浸出以获得浸出残渣，并将浸出残渣进行浮选 将其分离成浮球分数和水槽分数。 通过浮选获得的浮选级分在惰性气氛下在250〜800℃的温度下加热脱硫，得到脱硫产物。 通过在氧气或空气流动的气氛中，在600〜800℃的温度下加热，对脱硫物进行氧化焙烧，得到氧化焙烧物。 将氧化焙烧物溶解在硫酸溶液中，得到铜溶液，从铜溶液中分离回收含金残留物。
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3.发明申请Method of separation/purification for high-purity silver chloride, and process for producing high-purity silver by the same 有权用于高纯度氯化银的分离/纯化方法及其制备高纯度银的方法公开(公告)号：US20070022840A1
公开(公告)日：2007-02-01
申请号：US10558564
申请日：2004-08-31
CPC分类号： C01G5/02 , C22B3/44 , C22B11/04 , Y02P10/234
摘要： A method of efficient separation/purification for obtaining high-purity silver chloride which eliminates the necessity of a pretreatment of a refining intermediate comprising sparingly soluble silver compounds and impurity elements when silver chloride is separated from the refining intermediate and purified to a high degree and which enables the silver chloride to be used as a raw material to give high-purity silver metal without necessitating the pyrometallurgical refining or electro-refining of the silver metal. The method is characterized by comprising: a leaching step in which the refining intermediate is leached with an aqueous sulfite solution to extract silver with the solution to thereby form a silver-containing liquid resulting from the leaching and an insoluble residue; a silver chloride generation step in which the liquid resulting from the leaching is neutralized and acidified to precipitate silver chloride and thereby form the silver chloride and a mother liquor; and a silver chloride purification step in which the silver chloride is oxidized in an acidic aqueous solution by adding an oxidizing agent to dissolve and separate impurity elements and thereby form purified silver chloride and a solution containing the impurity elements.
摘要翻译： 一种用于获得高纯度氯化银的有效分离/纯化的方法，其中当将氯化银与精制中间体分离并纯化至高度时，其不需要预处理包含微溶银和杂质元素的精制中间体， 使得氯化银能够用作原料以得到高纯度银金属，而不需要对银金属的火法冶炼精炼或电精炼。 该方法的特征在于包括：浸出步骤，其中精炼中间体用亚硫酸盐水溶液浸提以用溶液萃取银，从而形成由浸出产生的含银液体和不溶性残余物; 氯化银生成步骤，其中由浸出得到的液体中和并酸化以沉淀氯化银，从而形成氯化银和母液; 以及氯化银净化步骤，其中通过添加氧化剂来溶解和分离杂质元素，从而形成纯化的氯化银和含有杂质元素的溶液，在酸性水溶液中氧化氯化银。
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公开(公告)号：US07291202B2
公开(公告)日：2007-11-06
申请号：US10944753
申请日：2004-09-21
CPC分类号： C22B11/04 , C22B3/0068 , C22B3/10 , C22B3/44 , Y02P10/234
摘要： A process for mutual separation of platinum group metals (PGM), wherein highly stable compounds and steps are used to efficiently remove impurity elements while preventing increase of impurity content relative to that of the PGM in the mother liquor and also preventing decomposition of a chloro complex, and palladium, platinum, iridium, ruthenium and rhodium are separated mutually in such a way that each of the separated PGM has a sufficient purity to be a commercial product.A process for mutual separation of PGM, comprising the first step for leaching a raw material containing PGM and impurity elements, second step for removing the impurity elements from the leach liquor by solvent extraction, third step for recovering palladium from the raffinate, fourth step for removing cationic impurity elements from the raffinate by solvent extraction, fifth step for recovering platinum from the raffinate by hydrolysis, sixth step for recovering ruthenium from the precipitate by leaching, and seventh step for recovering iridium by solvent extraction to prepare the stripping liquor containing iridium and raffinate containing rhodium.
摘要翻译： 铂族金属（PGM）的相互分离方法，其中使用高度稳定的化合物和步骤来有效地除去杂质元素，同时防止杂质含量相对于母液中的PGM增加，并且还防止氯络合物的分解 ，钯，铂，铱，钌和铑相互分离，使得每个分离的PGM具有足够的纯度作为商业产品。 一种用于相互分离PGM的方法，包括用于浸出含有PGM和杂质元素的原料的第一步骤;通过溶剂萃取从浸出液中除去杂质元素的第二步骤;从萃余液中回收钯的第三步骤; 通过溶剂萃取从萃余液中除去阳离子杂质元素;通过水解从萃余液回收铂的第五步骤;通过浸出从沉淀物中回收钌的第六步骤;通过溶剂萃取回收铱的第七步骤，制备含有铱的汽提液; 含有铑的残液。
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公开(公告)号：US20050066774A1
公开(公告)日：2005-03-31
申请号：US10944753
申请日：2004-09-21
CPC分类号： C22B11/04 , C22B3/0068 , C22B3/10 , C22B3/44 , Y02P10/234
摘要： A process for mutual separation of platinum group metals (PGM), wherein highly stable compounds and steps are used to efficiently remove impurity elements while preventing increase of impurity content relative to that of the PGM in the mother liquor and also preventing decomposition of a chloro complex, and palladium, platinum, iridium, ruthenium and rhodium are separated mutually in such a way that each of the separated PGM has a sufficient purity to be a commercial product. A process for mutual separation of PGM, comprising the first step for leaching a raw material containing PGM and impurity elements, second step for removing the impurity elements from the leach liquor by solvent extraction, third step for recovering palladium from the raffinate, fourth step for removing cationic impurity elements from the raffinate by solvent extraction, fifth step for recovering platinum from the raffinate by hydrolysis, sixth step for recovering ruthenium from the precipitate by leaching, and seventh step for recovering iridium by solvent extraction to prepare the stripping liquor containing iridium and raffinate containing rhodium.
摘要翻译： 铂族金属（PGM）的相互分离方法，其中使用高度稳定的化合物和步骤来有效地除去杂质元素，同时防止杂质含量相对于母液中的PGM增加，并且还防止氯络合物的分解 ，钯，铂，铱，钌和铑相互分离，使得每个分离的PGM具有足够的纯度作为商业产品。 一种用于相互分离PGM的方法，包括用于浸出含有PGM和杂质元素的原料的第一步骤;通过溶剂萃取从浸出液中除去杂质元素的第二步骤;从萃余液中回收钯的第三步骤; 通过溶剂萃取从萃余液中除去阳离子杂质元素;通过水解从萃余液回收铂的第五步骤;通过浸出从沉淀物中回收钌的第六步骤;通过溶剂萃取回收铱的第七步骤，制备含有铱的汽提液; 含有铑的残液。
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6.发明授权Method of separation/purification for high-purity silver chloride, and process for producing high-purity silver by the same 有权用于高纯度氯化银的分离/纯化方法及其制备高纯度银的方法公开(公告)号：US07601200B2
公开(公告)日：2009-10-13
申请号：US10558564
申请日：2004-08-31
CPC分类号： C01G5/02 , C22B3/44 , C22B11/04 , Y02P10/234
摘要： A method of efficient separation/purification for obtaining high-purity silver chloride which eliminates the necessity of a pretreatment of a refining intermediate comprising sparingly soluble silver compounds and impurity elements when silver chloride is separated from the refining intermediate and purified to a high degree and which enables the silver chloride to be used as a raw material to give high-purity silver metal without necessitating the pyrometallurgical refining or electro-refining of the silver metal. The method is characterized by comprising: a leaching step in which the refining intermediate is leached with an aqueous sulfite solution to extract silver with the solution to thereby form a silver-containing liquid resulting from the leaching and an insoluble residue; a silver chloride generation step in which the liquid resulting from the leaching is neutralized and acidified to precipitate silver chloride and thereby form the silver chloride and a mother liquor; and a silver chloride purification step in which the silver chloride is oxidized in an acidic aqueous solution by adding an oxidizing agent to dissolve and separate impurity elements and thereby form purified silver chloride and a solution containing the impurity elements.
摘要翻译： 一种用于获得高纯度氯化银的有效分离/纯化的方法，其中当将氯化银与精制中间体分离并纯化至高度时，其不需要预处理包含微溶银和杂质元素的精制中间体， 使得氯化银能够用作原料以得到高纯度银金属，而不需要对银金属的火法冶炼精炼或电精炼。 该方法的特征在于包括：浸出步骤，其中精炼中间体用亚硫酸盐水溶液浸提以用溶液萃取银，从而形成由浸出产生的含银液体和不溶性残余物; 氯化银生成步骤，其中由浸出得到的液体中和并酸化以沉淀氯化银，从而形成氯化银和母液; 以及氯化银净化步骤，其中通过添加氧化剂来溶解和分离杂质元素，从而形成纯化的氯化银和含有杂质元素的溶液，在酸性水溶液中氧化氯化银。
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7.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
CPC分类号： C22B23/04 , C22B3/02 , C22B23/0407 , Y02P10/234
摘要： 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.
摘要翻译： 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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8.发明申请公开(公告)号：US20120161374A1
公开(公告)日：2012-06-28
申请号：US13394202
申请日：2010-10-01
CPC分类号： C22B23/04 , C22B3/02 , C22B23/0407 , Y02P10/234
摘要： In a hydrometallurgical plant of a nickel laterite ore having a plurality of lines of treatment facilities, the hydrometallurgical plant of the nickel laterite ore which is, even when a serious trouble will occur in said treatment facilities, capable of minimizing decrease in throughput caused by this, and restoring a normal operation state early, after eliminating the serious trouble, and an operation method thereof.A hydrometallurgical plant of a nickel laterite ore having a plurality of lines, as treatment facilities including 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 as one line, wherein a coupling pipeline having a valve is installed between a liquid sending pipeline from the solid-liquid separation step to the neutralization step in each line and/or between a liquid sending pipeline from the sulfurization step to the detoxification step in each line.
摘要翻译： 在具有多条处理设备的镍红土矿的湿法冶金装置中，镍红土矿石的湿法冶金设备，即使在所述处理设施中将发生严重故障，其能够最小化由此造成的吞吐量降低 并且在消除严重故障之后提前恢复正常操作状态及其操作方法。 一种具有多条线的镍红土矿的湿法冶金装置，作为包括预处理步骤，浸出步骤，固液分离步骤，中和步骤，除锌步骤，硫化步骤和解毒步骤的处理设备，作为 一条线，其中具有阀的联接管道安装在从固液分离步骤到每行中的中和步骤的送液管道之间和/或在每一行中的从硫化步骤到排毒步骤的送液管道之间 。
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