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公开(公告)号：US08585798B2
公开(公告)日：2013-11-19
申请号：US12232103
申请日：2008-09-10
IPC分类号： C22B11/00
CPC分类号： C22B11/048 , C22B3/0005 , C22B3/065 , C22B3/24 , C22B7/007 , C22B7/008 , C22B7/009 , C22B11/04 , C22B11/06 , C22B15/0069 , C22B15/0093 , Y02P10/214 , Y02P10/234 , Y02P10/236
摘要： The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio.The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX). The copper is recovered from the post-liquor of the step (3) (5) Gold recovering step (AL). The residue separated in the step (2) is added to the leach liquor similar to that of the step (1). The steps (1) and (5) are carried out under the atmospheric pressure and at the temperature of boiling point or lower, while blowing air into the leach liquor.
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公开(公告)号：US07842120B2
公开(公告)日：2010-11-30
申请号：US12219894
申请日：2008-07-30
CPC分类号： C22B15/0093 , C22B3/0005 , C22B15/0069 , C22B15/0089 , Y02P10/234 , Y02P10/236
摘要： A method of obtaining copper from feedstock includes: providing feedstock into acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper with use of oxidizing power of at least one of iron ion and copper ion, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution; blowing air into the solution; oxidizing copper in the solution; coprecipitating iron and impurity; extracting copper from the solution from which deposition including the coprecipitate is separated; obtaining the extracted copper into sulfuric acid solution as copper sulfate; obtaining copper from the copper sulfate; and recycling hydrochloric acid generated in the extracting in another copper leaching.
摘要翻译： 从原料获得铜的方法包括：向碱性金属和碱土金属之一的氯化物和溴化物以及铜和铁的溴化铜和铁的氯化物之一提供原料; 使用铁离子和铜离子中的至少一种的氧化能力浸出一价铜和二价铜，空气在大气压下在低于酸溶液的沸点的温度下吹入酸溶液中; 固液分离酸溶液; 将空气吹入溶液中; 在溶液中氧化铜; 共沉淀铁和杂质; 从包含共沉淀物的沉积物分离的溶液中提取铜; 将提取的铜作为硫酸铜获得硫酸溶液; 从硫酸铜中获得铜; 并回收在另一种铜浸出中提取中产生的盐酸。
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公开(公告)号：US07682420B2
公开(公告)日：2010-03-23
申请号：US11896747
申请日：2007-09-05
申请人： Yoshifumi Abe , Hiroshi Hosaka
发明人： Yoshifumi Abe , Hiroshi Hosaka
IPC分类号： C22B11/06
CPC分类号： C22B11/04 , C22B3/10 , C22B11/06 , C22B15/0069 , Y02P10/234 , Y02P10/236
摘要： In a method for leaching gold from copper sulfides, the sulfide ores are first subjected to leaching of copper, thereby producing a leaching residue having 7.9% or less of the copper content. This leaching residue is mixed with a leach liquor, which contains the chloride ion and ferric ion and has 1.9 or less of pH. Gold and copper can be effectively leached from the copper sulfide ores. Ordinarily used oxidizing reagents such as hydrogen peroxide or nitric acid are not used. The gold, copper and iron can, therefore, be leached in a single process and by using an identical leaching liquor. The rate of gold leaching reaction can be enhanced by the co-presence of either copper or bromide ion or both together with the chloride and iron ion.
摘要翻译： 在从硫化铜中浸出金的方法中，首先对硫化物矿石进行铜浸出，由此生成具有7.9％以下铜含量的浸出残渣。 该浸出残渣与含有氯离子和铁离子的浸出液混合，pH为1.9以下。 铜和铜可以有效地从硫化铜矿石中浸出。 不使用通常使用的氧化剂如过氧化氢或硝酸。 因此，金，铜和铁可以在一个单独的过程中浸出并使用相同的浸出液。 金浸出反应的速率可以通过铜或溴离子的共存或二者与氯离子和铁离子的共存来提高。
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公开(公告)号：US09234259B2
公开(公告)日：2016-01-12
申请号：US12349155
申请日：2009-01-06
CPC分类号： C22B15/0069 , C22B3/0017 , C22B3/08 , C22B3/10 , C22B3/20 , C22B3/44 , C22B15/0071 , C22B15/0089 , Y02P10/234 , Y02P10/236
摘要： A process for recovering copper from an acid aqueous solution containing cupric chlorides and alkali metal and/or alkali earth metal chlorides by a solvent extraction with a cation-exchange extractant, comprising the step of processing a solvent extraction in the presence of sulfate ions.
摘要翻译： 一种通过用阳离子交换萃取剂溶剂萃取从含有氯化铜和碱金属和/或碱土金属氯化物的酸性水溶液中回收铜的方法，包括在硫酸根离子存在下处理溶剂萃取的步骤。
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公开(公告)号：US20100031779A1
公开(公告)日：2010-02-11
申请号：US12349155
申请日：2009-01-06
IPC分类号： C22B15/00
CPC分类号： C22B15/0069 , C22B3/0017 , C22B3/08 , C22B3/10 , C22B3/20 , C22B3/44 , C22B15/0071 , C22B15/0089 , Y02P10/234 , Y02P10/236
摘要： A process for recovering copper from an acid aqueous solution containing cupric chlorides and alkali metal and/or alkali earth metal chlorides by a solvent extraction with a cation-exchange extractant, comprising the step of processing a solvent extraction in the presence of sulfate ions.
摘要翻译： 一种通过用阳离子交换萃取剂溶剂萃取从含有氯化铜和碱金属和/或碱土金属氯化物的酸性水溶液中回收铜的方法，包括在硫酸根离子存在下处理溶剂萃取的步骤。
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公开(公告)号：US20080078269A1
公开(公告)日：2008-04-03
申请号：US11896747
申请日：2007-09-05
申请人： Yoshifumi Abe , Hiroshi Hosaka
发明人： Yoshifumi Abe , Hiroshi Hosaka
IPC分类号： C22B11/00
CPC分类号： C22B11/04 , C22B3/10 , C22B11/06 , C22B15/0069 , Y02P10/234 , Y02P10/236
摘要： In a method for leaching gold from copper sulfides, the sulfide ores are first subjected to leaching of copper, thereby producing a leaching residue having 7.9% or less of the copper content. This leaching residue is mixed with a leach liquor, which contains the chloride ion and ferric ion and has 1.9 or less of pH.Gold and copper can be effectively leached from the copper sulfide ores. Ordinarily used oxidizing reagents such as hydrogen peroxide or nitric acid are not used. The gold, copper and iron can, therefore, be leached in a single process and by using an identical leaching liquor. The rate of gold leaching reaction can be enhanced by the co-presence of either copper or bromide ion or both together with the chloride and iron ion.
摘要翻译： 在从硫化铜中浸出金的方法中，首先对硫化物矿石进行铜浸出，由此生成具有7.9％以下铜含量的浸出残渣。 该浸出残渣与含有氯离子和铁离子的浸出液混合，pH为1.9以下。 铜和铜可以有效地从硫化铜矿石中浸出。 不使用通常使用的氧化剂如过氧化氢或硝酸。 因此，金，铜和铁可以在一个单独的过程中浸出并使用相同的浸出液。 金浸出反应的速率可以通过铜或溴离子的共存或二者与氯离子和铁离子的共存来提高。
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公开(公告)号：US20090241732A1
公开(公告)日：2009-10-01
申请号：US12219894
申请日：2008-07-30
IPC分类号： C22B15/00
CPC分类号： C22B15/0093 , C22B3/0005 , C22B15/0069 , C22B15/0089 , Y02P10/234 , Y02P10/236
摘要： A method of obtaining copper from sulfide ore including copper (hereinafter referred to as feedstock) includes: providing feedstock into acid solution, the acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper from the feedstock with use of oxidizing power of at least one of iron ion and copper ion in the acid solution, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution after the leaching; blowing air into the solution after the solid-liquid separation; oxidizing copper in the solution; coprecipitating iron and impurity that are leached into the acid solution from the feedstock; extracting copper from the solution after the oxidizing from which deposition including the coprecipitate is separated; obtaining the extracted copper into sulfuric acid solution as copper sulfate; obtaining copper from the copper sulfate; and recycling hydrochloric acid generated in the extracting in another copper leaching.
摘要翻译： 从含有铜的硫化矿（以下称为原料）中获得铜的方法包括：向酸性溶液中提供原料，包括碱金属和碱土金属之一的氯化物和溴化物的酸溶液以及铜和铁的氯化物之一 铜和铁的溴化物; 在酸溶液中使用铁离子和铜离子中的至少一种的氧化能力从原料中浸出一价铜和二价铜，空气在大气压下在低于沸点沸点的温度下吹入酸溶液中 酸溶液; 浸出后将固溶液分离出酸溶液; 固液分离后将空气吹入溶液; 在溶液中氧化铜; 从原料中浸出到酸溶液中的铁和杂质共沉淀; 在从包含共沉淀物的沉积物分离的氧化之后从溶液中提取铜; 将提取的铜作为硫酸铜获得硫酸溶液; 从硫酸铜中获得铜; 并回收在另一种铜浸出中提取中产生的盐酸。
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公开(公告)号：US20090241736A1
公开(公告)日：2009-10-01
申请号：US12232103
申请日：2008-09-10
CPC分类号： C22B11/048 , C22B3/0005 , C22B3/065 , C22B3/24 , C22B7/007 , C22B7/008 , C22B7/009 , C22B11/04 , C22B11/06 , C22B15/0069 , C22B15/0093 , Y02P10/214 , Y02P10/234 , Y02P10/236
摘要： The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio.The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX). The copper is recovered from the post-liquor of the step (3) (5) Gold recovering step (AL). The residue separated in the step (2) is added to the leach liquor similar to that of the step (1). The steps (1) and (5) are carried out under the atmospheric pressure and at the temperature of boiling point or lower, while blowing air into the leach liquor.
摘要翻译： 硫化铜矿石在卤化物浴中浸出，不使用特殊的氧化剂，但仅使用空气。 硫化铜矿中的铜和金可以高浸出率浸出。 处理步骤如下。 （1）铜浸出工艺（CL）。 将原料装入含有氯化铜，氯化铁，7g / L盐酸和氯化钠的第一种酸性水溶液中。 后浸出液含有铜离子中的铜和铜离子中的铜。 （2）固液分离步骤。 将所得的CL步骤的固体和液体分离。 （3）空气氧化步骤（OX）。 将空气吹入后固体分液中。 铜离子中的铜被铜离子氧化成铜。 在步骤（1）中浸出的铁被氧化。 同时，在步骤（2）中浸出的杂质沉淀。 （4）铜提取步骤（CEX）。 从步骤（3）（5）金回收步骤（AL）的后液中回收铜。 在步骤（2）中分离的残余物加入到与步骤（1）相似的浸出液中。 步骤（1）和（5）在大气压力和沸点或更低的温度下进行，同时将空气吹入浸出液中。
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公开(公告)号：US20090241735A1
公开(公告)日：2009-10-01
申请号：US12216447
申请日：2008-07-03
IPC分类号： C22B11/00
CPC分类号： C22B11/04 , C22B3/24 , C22B11/06 , C22B15/0067 , Y02P10/234 , Y02P10/236
摘要： A process of leaching gold comprising the steps of: a) leaching copper from copper sulfide ore material that contains gold or contains silicate ore containing gold until the copper grade is reduced to 7.9 wt % or less; b) mixing the resulting material having a copper grade of 7.9 wt % or less with a gold leaching solution selected from the group consisting of a first solution containing chloride ions and ferric ions, and a second solution containing chloride ions and iron ions, the iron ions having been oxidized to trivalent ferric ions by air bubbled into the second solution; c) adjusting the pH of the gold leaching solution to 1.9 or less with stirring to leach at least gold in the material into the gold leaching solution by the oxidative activity of the ferric ions contained in the gold leaching solution, wherein the concentration of gold is reduced by selectively removing gold from part or all of the gold leaching solution during gold leaching. This process efficiently leaches at least copper and gold from a copper sulfide ore.
摘要翻译： 一种浸金的方法，包括以下步骤：a）将铜从含有金的硫化铜矿物料中浸出或含有含有含金的硅酸盐矿石，直到铜等级降低至7.9重量％以下; b）将所得到的铜等级为7.9重量％以下的材料与选自含有氯离子和铁离子的第一溶液的金浸出溶液和含有氯离子和铁离子的第二溶液混合， 已经通过鼓泡入第二溶液的空气氧化成三价铁离子的离子; c）通过搅拌将金浸出溶液的pH调节至1.9或更小，通过金浸出溶液中所含的三价铁离子的氧化活性，将材料中的至少金浸入金浸出溶液中，其中金的浓度为 通过在金浸出期间通过选择性地从部分或全部金浸出溶液中除去金而减少。 该方法有效地从硫化铜矿中浸出铜和金。
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公开(公告)号：US08388730B2
公开(公告)日：2013-03-05
申请号：US12216447
申请日：2008-07-03
IPC分类号： C22B11/00
CPC分类号： C22B11/04 , C22B3/24 , C22B11/06 , C22B15/0067 , Y02P10/234 , Y02P10/236
摘要： A process of leaching gold comprising the steps of: a) leaching copper from copper sulfide ore material that contains gold or contains silicate ore containing gold until the copper grade is reduced to 7.9 wt % or less; b) mixing the resulting material having a copper grade of 7.9 wt % or less with a gold leaching solution selected from the group consisting of a first solution containing chloride ions and ferric ions, and a second solution containing chloride ions and iron ions, the iron ions having been oxidized to trivalent ferric ions by air bubbled into the second solution; c) adjusting the pH of the gold leaching solution to 1.9 or less with stirring to leach at least gold in the material into the gold leaching solution by the oxidative activity of the ferric ions contained in the gold leaching solution, wherein the concentration of gold is reduced by selectively removing gold from part or all of the gold leaching solution during gold leaching. This process efficiently leaches at least copper and gold from a copper sulfide ore.
摘要翻译： 一种浸金的方法，包括以下步骤：a）将铜从含有金的硫化铜矿物料中浸出或含有含有含金的硅酸盐矿石，直到铜等级降低至7.9重量％以下; b）将所得到的铜等级为7.9重量％以下的材料与选自含有氯离子和铁离子的第一溶液的金浸出溶液和含有氯离子和铁离子的第二溶液混合， 已经通过鼓泡入第二溶液的空气氧化成三价铁离子的离子; c）通过搅拌将金浸出溶液的pH调节至1.9或更小，通过金浸出溶液中所含的三价铁离子的氧化活性，将材料中的至少金浸入金浸出溶液中，其中金的浓度为 通过在金浸出期间通过选择性地从部分或全部金浸出溶液中除去金而减少。 该方法有效地从硫化铜矿中浸出铜和金。
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