Method for enhancing solid-liquid separation in conjunction with laterite leaching
    1.
    发明授权
    Method for enhancing solid-liquid separation in conjunction with laterite leaching 有权
    与红土浸出一起提高固液分离的方法

    公开(公告)号:US09057116B2

    公开(公告)日:2015-06-16

    申请号:US13581153

    申请日:2011-02-21

    摘要: The invention relates to the hydrometallurgical treatment of laterite ores in order to recover valuable metals. More specifically, the invention presented relates to a method for improving precipitation and solid-liquid separation in conjunction with the leaching of laterite ores. According to the method the slurry exiting the leaching of laterite ores is neutralized, after which part of the slurry is routed to solid-liquid separation. Iron is precipitated from the solid-liquid separation overflow by neutralizing the solution and the solution that is formed, which includes jarosite seeds, is routed to an appropriate point in the process to control the precipitation of iron and to enhance the filterability of the solids.

    摘要翻译: 本发明涉及红土矿石的湿法冶金处理以回收有价值的金属。 更具体地说,本发明涉及一种与红土矿石的浸出相结合来改善沉淀和固液分离的方法。 根据该方法,将离开浸出红土矿石的浆料中和,然后将部分浆料送入固液分离。 铁通过中和溶液而从固液分离溢流中沉淀出来,所形成的溶液(包括黄钾矾种子)在该过程中被送到适当的位置,以控制铁的沉淀并提高固体的过滤性。

    METHOD FOR ENHANCING SOLID-LIQUID SEPARATION IN CONJUNCTION WITH LATERITE LEACHING
    2.
    发明申请
    METHOD FOR ENHANCING SOLID-LIQUID SEPARATION IN CONJUNCTION WITH LATERITE LEACHING 有权
    与LATERITE浸出相结合的增强固液分离方法

    公开(公告)号:US20120318102A1

    公开(公告)日:2012-12-20

    申请号:US13581153

    申请日:2011-02-21

    IPC分类号: C22B3/06

    摘要: The invention relates to the hydrometallurgical treatment of laterite ores in order to recover valuable metals. More specifically, the invention presented relates to a method for improving precipitation and solid-liquid separation in conjunction with the leaching of laterite ores. According to the method the slurry exiting the leaching of laterite ores is neutralised, after which part of the slurry is routed to solid-liquid separation. Iron is precipitated from the solid-liquid separation overflow by neutralising the solution and the solution that is formed, which includes jarosite seeds, is routed to an appropriate point in the process to control the precipitation of iron and to enhance the filterability of the solids.

    摘要翻译: 本发明涉及红土矿石的湿法冶金处理以回收有价值的金属。 更具体地说,本发明涉及一种与红土矿石的浸出相结合来改善沉淀和固液分离的方法。 根据该方法,将离开浸出红土矿石的浆料中和,然后将部分浆料送入固液分离。 铁通过中和溶液而从固液分离溢流中沉淀出来,所形成的溶液(包括黄钾矾种子)在该过程中被送到适当的位置,以控制铁的沉淀并提高固体的过滤性。

    Method for separating nickel from material with low nickel content
    3.
    发明授权
    Method for separating nickel from material with low nickel content 有权
    从镍含量低的材料中分离镍的方法

    公开(公告)号:US08974755B2

    公开(公告)日:2015-03-10

    申请号:US13993661

    申请日:2011-12-16

    IPC分类号: C22B23/00 C22B3/00

    摘要: The invention relates to a method for separating nickel and other valuable metals particularly from material having low nickel content, which contains iron and magnesium in addition to nickel and other valuable metals. The material having low nickel content is subjected to pulping and atmospheric leaching in acidic and oxidizing conditions, in which the majority of the metals in the material dissolve and the iron is partially precipitated. The precipitated iron is separated from the solution, after which nickel and the other dissolved valuable metals are precipitated as sulphides.

    摘要翻译: 本发明涉及一种用于分离镍和其它有价值金属的方法,特别是镍含量低的材料,除了镍和其它有价值的金属之外还含有铁和镁。 在酸性和氧化条件下,具有低镍含量的材料进行制浆和大气浸出,其中材料中的大部分金属溶解并且铁部分沉淀。 将沉淀的铁从溶液中分离出来,之后镍和其他溶解的有价金属作为硫化物沉淀。

    METHOD FOR SEPARATING NICKEL FROM MATERIAL WITH LOW NICKEL CONTENT
    4.
    发明申请
    METHOD FOR SEPARATING NICKEL FROM MATERIAL WITH LOW NICKEL CONTENT 有权
    从低镍含量的材料中分离镍的方法

    公开(公告)号:US20130266493A1

    公开(公告)日:2013-10-10

    申请号:US13993661

    申请日:2011-12-16

    IPC分类号: C22B3/00

    摘要: The invention relates to a method for separating nickel and other valuable metalsparticularly from material having low nickel content, which contains iron and magnesium in addition to nickel and other valuable metals. The material havinglow nickel content is subjected to pulpingand atmospheric leaching in acidic and oxidising conditions, in which the majority of the metals in themate-rialdissolve and the iron is partially precipitated. The precipitated iron is sepa-rated from the solution, after which nickel and the other dissolved valuable metalsare precipitated as sulphides.

    摘要翻译: 本发明涉及一种镍和其他有价值金属的方法,其特征在于,除镍和其它有价值的金属以外还含有含有铁和镁的低镍含量的材料。 具有低镍含量的材料在酸性和氧化条件下进行制浆和大气浸出,其中主要溶解的大部分金属和铁部分沉淀。 沉淀的铁从溶液中分离,之后镍和其他溶解的贵重金属作为硫化物沉淀。

    METHOD FOR TREATING A SOLUTION CONTAINING ZINC SULPHATE
    6.
    发明申请
    METHOD FOR TREATING A SOLUTION CONTAINING ZINC SULPHATE 有权
    用于处理含有硫化锌的溶液的方法

    公开(公告)号:US20130192424A1

    公开(公告)日:2013-08-01

    申请号:US13878025

    申请日:2011-10-07

    IPC分类号: C22B58/00 C22B41/00

    摘要: The invention relates to a method for treating a solution containing zinc sulphate, so that at least one of the rare metals such as indium, gallium and germanium can be separated from it. A portion of the metals to be separated can be precipitated from zinc sulphate solution by neutralizing the acidic solution and at least a portion is cemented by means of metal powder. The solid precipitates that are formed can be combined and treated subsequently in some suitable way to leach out the desired metals.

    摘要翻译: 本发明涉及用于处理含有硫酸锌的溶液的方法,使得至少一种稀有金属如铟,镓和锗可以与其分离。 待分离的金属的一部分可以通过中和酸性溶液从硫酸锌溶液中沉淀,并且至少一部分通过金属粉末粘合。 所形成的固体沉淀物可以以一些合适的方式组合和处理以浸出所需的金属。

    Hydrogenation process for the production of a sugar alcohol
    7.
    发明授权
    Hydrogenation process for the production of a sugar alcohol 有权
    用于生产糖醇的氢化方法

    公开(公告)号:US08816068B2

    公开(公告)日:2014-08-26

    申请号:US12298714

    申请日:2007-04-26

    摘要: The invention relates to an improved process for the production of a sugar alcohol from the corresponding sugar through catalytic hydrogenation. Especially, the invention relates to a process for reducing the interference of sugar-derived aldonic acids in the hydrogenation process by adjusting the hydrogenation conditions so that the activity of the catalyst is maintained. In one embodiment of the invention, the process of the invention is carried out by adjusting the hydrogenation temperature by starting the hydrogenation at a lower temperature and then gradually rising the temperature to the final hydrogenation temperature. In another embodiment of the invention, the process of the invention is carried out by adding small-molecular monocarboxylic acids to the hydrogenation solution.

    摘要翻译: 本发明涉及通过催化氢化从相应的糖生产糖醇的改进方法。 特别地,本发明涉及通过调节氢化条件来降低加氢过程中糖衍生的醛糖酸的干扰从而保持催化剂的活性的方法。 在本发明的一个实施方案中,本发明的方法是通过在较低温度下开始氢化并随后逐渐升温至最终氢化温度来调节氢化温度来进行的。 在本发明的另一个实施方案中,本发明的方法是通过向氢化溶液中加入小分子单羧酸来进行的。

    METHOD FOR PRODUCING A POORLY SOLUBLE CALCIUM-ARSENIC COMPOUND
    8.
    发明申请
    METHOD FOR PRODUCING A POORLY SOLUBLE CALCIUM-ARSENIC COMPOUND 审中-公开
    用于生产不溶解的钙 - 砷化合物的方法

    公开(公告)号:US20130341283A1

    公开(公告)日:2013-12-26

    申请号:US14003187

    申请日:2012-03-07

    申请人: Teppo Riihimäki

    发明人: Teppo Riihimäki

    IPC分类号: C02F1/52

    摘要: The invention relates to a method for precipitating pentavalent calcium arsenate from an acidic solution, in which arsenic is at least partially in trivalent form. The acidic solution is neutralised before being routed to an arsenic oxidation stage,and a poorly soluble calcium-arsenic compound is precipitated from the solution, in which all the arsenic is pentavalent.

    摘要翻译: 本发明涉及从酸性溶液中沉淀五价砷酸钙的方法,其中砷至少部分为三价形式。 酸性溶液在进入砷氧化阶段之前被中和,并且从溶液中沉淀出难溶的钙 - 砷化合物,其中所有的砷都是五价的。

    Delivery system
    9.
    发明授权
    Delivery system 有权
    输送系统

    公开(公告)号:US07850986B2

    公开(公告)日:2010-12-14

    申请号:US11631873

    申请日:2005-07-05

    申请人: Teppo Riihimäki

    发明人: Teppo Riihimäki

    IPC分类号: A61F6/06 A61F6/14

    摘要: The present invention relates to a delivery system comprising a core and a membrane encasing said core, wherein said core and membrane consist essentially of an elastomer composition and said core comprises at least one therapeutically active agent. The delivery system is characterized in that the membrane comprises at least one regulating agent. The invention also relates to a method for controlling the release of at least one therapeutically active agent from a delivery system.

    摘要翻译: 本发明涉及包含核心和包围所述核心的膜的递送系统,其中所述核心和膜基本上由弹性体组合物组成,并且所述核心包含至少一种治疗活性剂。 递送系统的特征在于,膜包括至少一种调节剂。 本发明还涉及用于控制至少一种治疗活性剂从递送系统释放的方法。