Method for separating arsenic and heavy metals in an acidic washing solution
    1.
    发明授权
    Method for separating arsenic and heavy metals in an acidic washing solution 有权
    在酸性洗涤液中分离砷和重金属的方法

    公开(公告)号:US09555362B2

    公开(公告)日:2017-01-31

    申请号:US14364372

    申请日:2012-10-26

    申请人: EISENMANN AG

    摘要: A method for separating arsenic and heavy metals in an acidic washing solution which contains both arsenic and heavy metal, more particularly in a washing solution which is formed in copper smelting and contains sulphuric acid, comprises a separation process section, in which arsenic and at least one primary heavy metal are separated from one another. The separation process section comprises a processing step, in which hydrogen peroxide H2O2 is added to the washing solution, and the separation process section comprises a precipitation stage, in which the washing solution is admixed with a sulphide precipitation reagent, causing the at least one primary heavy metal to precipitate in the form of a metal sulphide. The processing step in this system is carried out before the precipitation stage.

    摘要翻译: 一种在含有砷和重金属的酸性洗涤液中分离砷和重金属的方法,特别是在以铜冶炼形成并含有硫酸的洗涤液中,特别包括分离工艺段,其中砷和至少 一个主要的重金属彼此分离。 分离方法部分包括其中将过氧化氢H 2 O 2加入到洗涤溶液中的处理步骤,并且分离工艺部分包括沉淀阶段,其中洗涤溶液与硫化物沉淀试剂混合,使得至少一个初级 重金属以金属硫化物的形式沉淀。 该系统的处理步骤在沉淀阶段前进行。

    METHOD OF RECOVERING COPPER AND PRECIOUS METALS
    2.
    发明申请
    METHOD OF RECOVERING COPPER AND PRECIOUS METALS 有权
    回收铜和重金属的方法

    公开(公告)号:US20160115568A1

    公开(公告)日:2016-04-28

    申请号:US14895740

    申请日:2014-06-06

    摘要: Provided is a method of recovering copper and one or more precious metals comprising leaching copper-bearing ore and/or concentrate under atmospheric or slightly pressurized conditions at a temperature below the boiling point of the leach solution in a sulfuric acidic solution in the presence of one or more alkali metal or alkali earth metal halides, whereby the total halide concentration is from 30 to 115 g/L, to dissolve copper and to obtain a leaching liquor comprising copper, sulfur species, and halides in solution. The leaching liquor is then subjected to a solid-liquid separation after which a first aqueous pregnant leach solution and a copper depleted leaching residue are obtained. Copper is purified by solvent extraction from the first aqueous pregnant leach solution to obtain a first copper-containing loaded organic solution and a first aqueous raffinate. The copper containing loaded organic solution is stripped and copper is recovered.

    摘要翻译: 提供了一种回收铜和一种或多种贵金属的方法,包括在大气压或轻微加压条件下,在低于溶解溶液的沸点的温度下,在硫酸溶液中浸出含铜矿石和/或浓缩物, 或更多的碱金属或碱土金属卤化物,由此总卤化物浓度为30-115g / L,以溶解铜并在溶液中获得包含铜,硫物质和卤化物的浸出液。 然后对浸出液进行固液分离,之后获得第一含水浸出溶液和贫铜浸出残渣。 通过溶剂萃取从第一含水浸出溶液中纯化铜,得到第一含铜载体的有机溶液和第一含水萃余液。 剥离含铜载体的有机溶液并回收铜。

    Method for recovering metals from solutions
    5.
    发明授权
    Method for recovering metals from solutions 失效
    从溶液中回收金属的方法

    公开(公告)号:US5472618A

    公开(公告)日:1995-12-05

    申请号:US193484

    申请日:1994-02-07

    申请人: Daniel G. Bolser

    发明人: Daniel G. Bolser

    摘要: A method for recovering metals from solutions is described. A particular embodiment of the method concerns recovering copper metal. The method comprises first treating a solution containing copper ions with a sufficient amount of an inorganic acid to obtain a solution pH of from about 1.5 to less than about 2.5. A reducing metal, such as iron, is then added to the solution to precipitate metal ions, such as copper ions, as metals. The reducing metal has a mesh size preferably smaller than about 350, and even more preferably at least as small as about 400 mesh. The metal precipitate is recovered from solution.

    摘要翻译: 描述了从溶液中回收金属的方法。 该方法的一个具体实施方案涉及回收铜金属。 该方法包括首先用足够量的无机酸处理含有铜离子的溶液以获得约1.5至小于约2.5的溶液pH。 然后将诸如铁的还原金属加入溶液中以将金属离子(例如铜离子)沉淀为金属。 还原金属的筛孔尺寸优选小于约350,甚至更优选至少小至约400目。 从溶液中回收金属沉淀物。

    Hydrometallurgical brass dust reclamation
    6.
    发明授权
    Hydrometallurgical brass dust reclamation 失效
    湿法冶金黄铜粉尘回收

    公开(公告)号:US4149945A

    公开(公告)日:1979-04-17

    申请号:US895919

    申请日:1978-04-13

    申请人: Roger N. Kust

    发明人: Roger N. Kust

    摘要: A process for winning copper and zinc from brass mill waste products containing oxidic copper and zinc, iron, nickel, or cobalt. The feed material is leached in sulfuric acid, neutralized to a pH between about 2.5 and 3.0, and treated with zinc metal to precipitate copper. After separation of the copper product, residual copper as well as iron and cobalt are removed in a second, oxygen-free, cementation on zinc metal. The liquor is then raised to about pH 4.0 or greater and flushed with oxygen to precipitate iron. Lastly, the purified electrolyte is subjected to zinc electrowinning wherein acceptably pure zinc cathode is produced and sulfuric acid is regenerated.

    摘要翻译: 铜铜和锌,铁,镍,钴等废铜制品的铜和锌的获得过程。 将进料在硫酸中浸提,中和至约2.5至3.0之间的pH,并用锌金属处理以沉淀铜。 在铜产物分离之后,在金属锌上的第二次无氧胶结中除去残留的铜以及铁和钴。 然后将液体升至约pH4.0或更高,并用氧气冲洗以沉淀铁。 最后,将纯化的电解质进行锌电解析出,其中产生可接受的纯锌阴极并再生硫酸。

    Electrolytic production of copper from ores and concentrates
    7.
    发明授权
    Electrolytic production of copper from ores and concentrates 失效
    从矿石和精矿中电解生产铜

    公开(公告)号:US4061552A

    公开(公告)日:1977-12-06

    申请号:US654391

    申请日:1976-02-02

    IPC分类号: C22B15/00 C25C1/12

    摘要: A process for extracting copper from a copper bearing ore or concentrate which comprises immersing the ore or concentrate in an electrolyte, intimately mixing with the slurry so formed finely dispersed air or other oxygen containing gas and maintaining the pH of the mixture at between 1,5 and 7,0 throughout the process. Iron is solubilized in the process and precipitated as ferric oxide and the copper is taken into solution. The process is conducted at substantially atmospheric pressure and at temperatures of from 50.degree. C to the boiling point of the electrolyte. The electrolyte is acidic and contains chloride ions in a concentration between that sufficient to maintain in solution any cuprous ions present and saturation.

    摘要翻译: 从含铜矿石或浓缩物中提取铜的方法,包括将矿石或浓缩物浸入电解质中,与如此形成的浆料充分混合形成精细分散的空气或其它含氧气体并将混合物的pH保持在1.5 和整个过程中的7,0。 铁在该过程中溶解并作为氧化铁沉淀并将铜溶解于溶液中。 该方法在大气压和50℃至电解质沸点的温度下进行。 电解质是酸性的并且含有浓度在足以保持溶液中的任何亚铜离子存在和饱和的氯离子。

    Process and apparatus for recovering dissolved copper from solutions
containing copper
    8.
    发明授权
    Process and apparatus for recovering dissolved copper from solutions containing copper 失效
    从含铜溶液中回收溶解铜的方法和设备

    公开(公告)号:US4027864A

    公开(公告)日:1977-06-07

    申请号:US696458

    申请日:1976-06-16

    申请人: Jan Hulsebos

    发明人: Jan Hulsebos

    IPC分类号: C22B3/02 C22B15/00 C22B15/12

    摘要: A process and apparatus for recovering copper values from acidic solutions containing dissolved copper is disclosed. The process and apparatus comprises reacting in an intake line and feed pump powdered iron in the size range of up to -40 mesh with the solution to displace the copper therefrom as metallic copper, and separating the copper from the solution by settling the metallic copper in the bottom of a vessel known as a polishing tower. Preferably, the solution is clarified by passing it upwardly through a bed of scrap iron, after which the solution is centrifuged to remove particles therefrom.

    摘要翻译: 公开了一种从含有溶解铜的酸性溶液中回收铜值的方法和装置。 该方法和装置包括在进料管线和进料泵中将溶液与至少-40目的尺寸范围内的粉末铁反应,从而将铜从金属铜中移出,并通过使金属铜沉淀而将铜从溶液中分离出来 称为抛光塔的容器的底部。 优选地,通过将​​其向上通过废铁床来澄清溶液,之后将溶液离心以从其中除去颗粒。

    Method for precipitating copper metal from copper bearing solutions
    10.
    发明授权
    Method for precipitating copper metal from copper bearing solutions 失效
    从铜轴承解决方案中提炼铜金属的方法

    公开(公告)号:US3930846A

    公开(公告)日:1976-01-06

    申请号:US513879

    申请日:1974-10-10

    IPC分类号: C22B15/00 C22B15/12

    CPC分类号: C22B15/0091 Y02P10/236

    摘要: Precipitating copper metal from copper bearing solutions using scrap iron as a precipitant to form free copper metal precipitate. The scrap iron is retained in an unflooded bed in a container having a rotatable nozzle for spraying the copper bearing solution in a high velocity jet stream which penetrates into the bed to react with the iron to form copper and strips off the copper metal from the scrap iron. In the bottom of the container is a sieve for retaining the scrap iron while withdrawing the copper metal and the expended solution.