Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates
    1.
    发明授权
    Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates 有权
    用于从含有钌或钌氧化物的材料或从含钌的贵金属矿精矿中回收钌的方法

    公开(公告)号:US08252252B2

    公开(公告)日:2012-08-28

    申请号:US13051047

    申请日:2011-03-18

    Abstract: Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of A. the introduction of the material into a highly alkaline alkali hydroxide melt in the presence of nitrate as oxidizing agent with the formation of an oxidized melt residue with water-soluble ruthenate (RuO4)2−, B. the dissolution of the oxidized melt residue obtained in water, C. the addition of a reducing agent, D. the precipitation of the metals formed, can also be used for separating off selenium. Optionally, ruthenium is separated off by distillation, instead of precipitation, following step B, with the steps of 5C the treatment of the ruthenate-containing solution with an oxidizing agent, 5D distilling off of the RuO4 obtained, 5E taking up of the RuO4 from step 5D in hydrochloric acid. By way of further subsequent purification steps, processes for the recovery of ruthenium targets are obtained.

    Abstract translation: 用于从含有钌或钌氧化物的材料或含钌贵金属矿精矿中回收钌的方法,其步骤为A.在硝酸盐作为氧化剂存在下将材料引入高碱性碱金属氢氧化物熔体中, 形成具有水溶性钌酸盐(RuO4)2-的氧化熔体残渣,B.在水中得到的氧化熔体残渣的溶解,C.加入还原剂,D.形成的金属沉淀,可以 也可用于分离硒。 任选地,在步骤B之后,通过蒸馏分离钌,而不是沉淀,步骤5C用氧化剂处理含钌酸盐的溶液,5D蒸馏所获得的RuO 4,5E从RuO 4中吸收RuO4 步骤5D在盐酸中。 通过进一步的后续纯化步骤,可以获得钌靶的回收方法。

    Process for providing noble metal-containing mixtures for recovering noble metals
    2.
    发明授权
    Process for providing noble metal-containing mixtures for recovering noble metals 有权
    提供用于回收贵金属的含贵金属的混合物的方法

    公开(公告)号:US09169536B2

    公开(公告)日:2015-10-27

    申请号:US14111416

    申请日:2012-04-12

    Abstract: The invention relates to the provision of noble metal-containing mixtures for a process for processing them by heating the mixture, preferably for processing them by means of an ashing process. This provision is characterized by the following measures: (a) moistening of the noble metal-containing mixture to be processed, (b) introduction of the moistened noble metal-containing mixture into at least one container which serves as diffusion barrier for water, and (c) introduction of the loaded container into a heat-resistant chamber together with at least one upper refractory mat. The noble metal-containing mixture is preferably moistened in the presence of a porous material and the chamber is closed by means of a heat-resistant covering. The invention further provides a processing process comprising the provision of noble metal-containing mixtures and also the heat-resistant chamber loaded with noble metal-containing mixtures itself. The process of the invention enables simple, clean recovery of noble metals in high yield from noble metal-containing mixtures.

    Abstract translation: 本发明涉及提供含贵金属的混合物,用于通过加热混合物来处理它们的方法,优选通过灰化方法处理它们。 该规定的特征在于以下措施:(a)对待处理的含贵金属的混合物的润湿,(b)将含有贵金属的混合物加入至少一个用作水的扩散阻挡层的容器中,以及 (c)将装载的容器与至少一个上耐火垫一起引入耐热室。 含贵金属的混合物优选在多孔材料的存在下润湿,并且通过耐热覆盖物封闭该室。 本发明进一步提供了一种处理方法,其包括提供含贵金属的混合物,以及负载贵金属混合物本身的耐热室。 本发明的方法能够从含贵金属的混合物中以高产率简单,清洁地回收贵金属。

    Method of homogenization and, optionally, analysis for processing moist noble metal-containing recycling materials with an unknown noble metal content
    3.
    发明授权
    Method of homogenization and, optionally, analysis for processing moist noble metal-containing recycling materials with an unknown noble metal content 有权
    均质化方法,以及任选地分析用于处理具有未知贵金属含量的含贵金属的回收材料

    公开(公告)号:US08399529B2

    公开(公告)日:2013-03-19

    申请号:US11470659

    申请日:2006-09-07

    Abstract: For processing of noble metal-containing, moist recycling materials with an unknown noble metal content (hereinafter called “batch”), a moisture-binding agent is added for homogenisation and the batch is mixed with comminution of optionally pre-sent agglomerates to form a free-flowing and homogenous powder. Optionally, the following takes place subsequently for analysis: A at least one representative, volume-reduced sample is taken first of all, B the sample is dried, C the sample is optionally divided further and D the sample is analyzed and the noble metal content of the batch is calculated on the basis of the data a previously known or pre-calculated quantity of the moisture-binding agent being added before sampling (step A).

    Abstract translation: 对于具有未知贵金属含量(以下称为批次)的含贵金属的潮湿回收材料的加工,加入湿粘结剂用于均化,并将批料与任选的预先发送的附聚物粉碎混合以形成自由基, 流动均匀的粉末。 任选地,随后进行以下分析:首先至少采用一个代表性的体积减少的样品,B样品被干燥,C,任选地分开样品,D分析样品,并且贵金属含量 基于在采样之前添加的先前已知或预先计算的水分结合剂的数据的数据(步骤A)来计算。

    RECYCLING FURNACE FOR BURNING OFF PRECIOUS METAL-CONTAINING MATERIALS
    4.
    发明申请
    RECYCLING FURNACE FOR BURNING OFF PRECIOUS METAL-CONTAINING MATERIALS 有权
    回收炉用于燃烧含有金属的材料

    公开(公告)号:US20120227643A1

    公开(公告)日:2012-09-13

    申请号:US13461114

    申请日:2012-05-01

    Abstract: A recycling furnace is provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy. The furnace includes a switching facility for alternating operation of two burning-off chambers of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. A continuous conveyor for dosing of liquids or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion, preferably a temperature sensor. A single waste gas treatment facility is used for thermal post-combustion for the two furnace chambers.

    Abstract translation: 提供回收炉用于处理具有以大能量燃烧的有机部分的具有潜在爆炸性的含贵金属的材料。 炉子包括用于在炉子的两个燃烧室的交替操作的切换设备:(A)在包含最大6重量%的氧的气氛中的保护炉气体下的热解或碳化,和(B)有机物的氧化燃烧 馏分包括碳。 炉具有间接加热和控制,其通过传感器确定热解或碳化的结束,并控制切换设施以向炉内供应空气或氧气。 在热解期间用于计量液体或液化物质的连续输送机由后燃烧,优选温度传感器的至少一个参数控制。 单个废气处理设备用于两个炉室的热后燃烧。

    PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION
    5.
    发明申请
    PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION 审中-公开
    通过蒸馏将含有RUTHENATE的溶液中的RuO4除去的方法和装置

    公开(公告)号:US20120058043A1

    公开(公告)日:2012-03-08

    申请号:US13295995

    申请日:2011-11-14

    Abstract: In processes for removing ruthenium by distilling RuO4 from ruthenate-containing solutions with these steps of the treatment of the ruthenate-containing solution with an oxidising agent, distilling off of the RuO4 formed, absorbing the RuO4 from step II in hydrochloric acid, the oxidising agent is recycled into step I following step III. The processes can be carried out in reactor modules with A a reactor with a stirrer, gas inlet and gas outlet, B at least one scrubber connected in series downstream with the gas outlet via a line, C one or several gas absorbers connected in series downstream with the at least one scrubber via lines, E at least one line from the optionally last absorber for recycling into the gas inlet of the reactor or into a further module or into a facility for off-gas treatment.

    Abstract translation: 在通过用氧化剂处理含钌酸盐的溶液的步骤,蒸馏除去形成的RuO 4的步骤中,从含有钌酸盐的溶液中蒸馏出RuO 4的方法中,从盐酸中吸收步骤II中的RuO 4,氧化剂 在步骤III之后循环进入步骤I. 该方法可以在具有搅拌器,气体入口和气体出口的反应器的反应器模块中进行,B至少一个洗涤器通过管线与气体出口串联连接,C个或多个气体吸收器串联连接 与至少一个洗涤器经由管线,E至少一条来自任选的最后吸收器的管线,用于再循环到反应器的气体入口中或进入另一模块或进入用于废气处理的设备。

    PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION
    6.
    发明申请
    PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION 审中-公开
    通过蒸馏将含有RUTHENATE的溶液中的RuO4除去的方法和装置

    公开(公告)号:US20090191106A1

    公开(公告)日:2009-07-30

    申请号:US12358323

    申请日:2009-01-23

    Abstract: In processes for removing ruthenium by distilling RuO4 from ruthenate-containing solutions with these steps of the treatment of the ruthenate-containing solution with an oxidising agent, distilling off of the RuO4 formed, absorbing the RuO4 from step II in hydrochloric acid, the oxidising agent is recycled into step I following step III. The processes can be carried out in reactor modules with A a reactor with a stirrer, gas inlet and gas outlet, B at least one scrubber connected in series downstream with the gas outlet via a line, C one or several gas absorbers connected in series downstream with the at least one scrubber via lines, E at least one line from the optionally last absorber for recycling into the gas inlet of the reactor or into a further module or into a facility for off-gas treatment.

    Abstract translation: 在通过用氧化剂处理含钌酸盐的溶液的步骤,蒸馏除去形成的RuO 4的步骤中,从含有钌酸盐的溶液中蒸馏出RuO 4的方法中,从盐酸中吸收步骤II中的RuO 4,氧化剂 在步骤III之后循环进入步骤I. 该方法可以在具有搅拌器,气体入口和气体出口的反应器的反应器模块中进行,B至少一个洗涤器通过管线与气体出口串联连接,C个或多个气体吸收器串联连接 与至少一个洗涤器经由管线,E至少一条来自任选的最后吸收器的管线,用于再循环到反应器的气体入口中或进入另一模块或进入用于废气处理的设备。

    Method of Homogenization and, Optionally, Analysis for Processing Moist Noble Metal-Containing Recycling Materials With an Unknown Noble Metal Content
    7.
    发明申请
    Method of Homogenization and, Optionally, Analysis for Processing Moist Noble Metal-Containing Recycling Materials With an Unknown Noble Metal Content 有权
    均质化方法和任选分析用未知贵金属含量处理含有金属的含金属回收材料

    公开(公告)号:US20070065353A1

    公开(公告)日:2007-03-22

    申请号:US11470659

    申请日:2006-09-07

    Abstract: For processing of noble metal-containing, moist recycling materials with an unknown noble metal content (hereinafter called “batch”), a moisture-binding agent is added for homogenisation and the batch is mixed with comminution of optionally pre-sent agglomerates to form a free-flowing and homogenous powder. Optionally, the following takes place subsequently for analysis: A at least one representative, volume-reduced sample is taken first of all, B the sample is dried, C the sample is optionally divided further and D the sample is analyzed and the noble metal content of the batch is calculated on the basis of the data a previously known or pre-calculated quantity of the moisture-binding agent being added before sampling (step A).

    Abstract translation: 为了处理具有未知贵金属含量(以下称为“批次”)的含贵金属的潮湿回收材料,加入水分粘合剂用于均化,并将批料与任选的预先发送的附聚物粉碎混合形成 自由流动和均匀的粉末。 任选地,随后进行以下分析:首先至少采用一个代表性的体积减少的样品,B样品被干燥,C,任选地分开样品,D分析样品,并且贵金属含量 基于在采样之前添加的先前已知或预先计算的水分结合剂的数据的数据(步骤A)来计算。

    Method for the separation of ruthenium from noble metal solutions
    8.
    发明授权
    Method for the separation of ruthenium from noble metal solutions 有权
    从贵金属溶液中分离钌的方法

    公开(公告)号:US06475448B2

    公开(公告)日:2002-11-05

    申请号:US09753291

    申请日:2001-01-02

    CPC classification number: C01G55/004 C22B3/44 C22B11/00 Y02P10/234

    Abstract: Ruthenium is separated from noble metal solutions, by: a) heating a noble metal solution containing ruthenium to a temperature of T=+50° C. to T=+65° C., the H+ concentration and Cl− concentration are greater than 1 mol/l each; b) addition of chlorate, the resulting suspension/solution having a temperature of T=+50° C. to T=+65° C., heating the suspension solution to T=+80° C. to T=+90° C. and passing a carrier gas through the suspension/solution and capturing the resultant ruthenium tetroxide; c) addition of bromate at a pH of 1 to 3, the resultant suspension/solution having a temperature T=+60° C. to T=+95° C., and passing a carrier gas through the suspension solution and capturing the resultant ruthenium tetroxide.

    Abstract translation: 钌通过以下方式与贵金属溶液分离:a)将含有钌的贵金属溶液加热至T = + 50℃的温度至T = + 65℃,H +浓度和Cl-浓度大于1 mol / l; b)加入氯酸盐,所得到的悬浮液/溶液的温度为T = + 50℃至T = + 65℃,将悬浮液加热至T = + 80℃至T = + 90℃,并使载气通过悬浮液/溶液并捕获所得的四氧化钌; c)在1至3的pH下加入溴酸盐,所得悬浮液/溶液的温度为T = + 60℃ 至T = + 95℃,并使载气通过悬浮液并捕获所得的四氧化钌。

    Method for dissolving noble metals out of segregated ores containing noble metals
    9.
    发明授权
    Method for dissolving noble metals out of segregated ores containing noble metals 有权
    将贵金属从含贵金属的分离矿石中溶解的方法

    公开(公告)号:US06440376B1

    公开(公告)日:2002-08-27

    申请号:US09595185

    申请日:2000-06-16

    CPC classification number: C22B3/10 C22B11/044 Y02P10/214 Y02P10/234

    Abstract: A method for dissolving noble metals out of segregated ores containing noble metals, comprising: reducing noble metal oxides present to the individual metals in finely divided form; oxidating the segregated ores and/or the noble metals with HCl and chlorate to yield a solution or suspension having a concentration of H+ ions of at least 1 mol/l, a concentration of Cl− ions of at least 1 mol/l and a temperature of at least 50° C.

    Abstract translation: 一种用于将贵金属从含有贵金属的分离矿石中溶解的方法,其包括:以细碎形式还原存在于各种金属中的贵金属氧化物;用HCl和氯酸盐氧化分离的矿石和/或贵金属以产生溶液或悬浮液 具有至少1mol / l的H +离子浓度,至少1mol / l的Cl-离子浓度和至少50℃的温度。

    Method for preparing gold of high purity
    10.
    发明授权
    Method for preparing gold of high purity 有权
    制备高纯度金的方法

    公开(公告)号:US06331200B1

    公开(公告)日:2001-12-18

    申请号:US09595123

    申请日:2000-06-16

    CPC classification number: C22B11/04 C22B11/00

    Abstract: A method is proposed for producing gold of high purity from noble metal solutions containing nitrate, with the following steps: a) Nitrate destruction in the noble metal solution, b) Addition of a gold ion reducing acid Fe2+ solution whose H+ ion concentration amounts to at least 4 mol/l, to the solution prepared in step a), whose H+ ion concentration amounts to at least 4 mol/l.

    Abstract translation: 提出一种从含有硝酸盐的贵金属溶液中生产高纯度金的方法,具体步骤如下:a)贵金属溶液中的硝酸盐破坏,b)加入H +离子浓度达到的金离子还​​原酸Fe2 +溶液 至少4mol / l,与步骤a)中制备的溶液,其H +离子浓度至少为4mol / l。

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