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    PROCESS TO PRODUCE ROUGH FERRO-NICKEL PRODUCT
    3.
    发明申请
    PROCESS TO PRODUCE ROUGH FERRO-NICKEL PRODUCT 审中-公开
    生产粗糙镍制品的工艺

    公开(公告)号：WO2012103618A1

    公开(公告)日：2012-08-09

    申请号：PCT/BR2012/000030

    申请日：2012-02-07

    Applicant: VALE S.A. ,  BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti

    Inventor： BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti

    IPC: C22B23/02

    CPC classification number: C22B23/023

    Abstract: The present invention refers to a MHP process do produce rough ferro- nickel product. The process comprises the steps of: mixing nickel hydroxide with an iron source and slagging agents; putting the mixture in contact with a reducing agent producing a ferronickel alloy; and producing a roasted product that has disseminated ferronickel alloy inside the structure.

    Abstract translation: 本发明涉及MHP工艺制造粗铁镍产品。 该方法包括以下步骤：将氢氧化镍与铁源和成渣剂混合; 使混合物与产生镍铁合金的还原剂接触; 并生产在结构内散布有镍铁合金的烤制品。

    SYSTEM AND METHOD FOR RARE EARTHS EXTRACTION
    4.
    发明申请
    SYSTEM AND METHOD FOR RARE EARTHS EXTRACTION 审中-公开
    用于稀土吸收的系统和方法

    公开(公告)号：WO2013163711A1

    公开(公告)日：2013-11-07

    申请号：PCT/BR2013/000148

    申请日：2013-05-03

    Applicant: VALE S.A. ,  BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti ,  MENDES, Flávia Dutra ,  TUDE, João Alberto Lessa

    Inventor： BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti ,  MENDES, Flávia Dutra ,  TUDE, João Alberto Lessa

    IPC: C22B59/00

    CPC classification number: C22B59/00

    Abstract: It is described a method for recovering rare earth elements from low grade ores including a first metal selected group containing at least one of iron and aluminum and a second metal selected from the group consisting of at least of the rare earth elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium and scandium), the method comprising the steps of: (i) contacting the ore with sulfuric acid to obtain sulfates of the first group of metals, (ii) subjecting the mixture to high temperatures in order to convert the first group of sulfates into phosphates or other stable species and the second group into sulfates, (iii) adding water to the cool mixture, selectively dissolving the rare earth elements and (iv) subjecting the rare earth solution to a purification process.

    Abstract translation: 描述了一种从低等级矿石中回收稀土元素的方法，包括含有至少一种铁和铝的第一金属选择基团和选自至少稀土元素（镧，铈， 镨，钕，ium，钐，铕，钆，铽，镝，钬，铒，ium，镱，镥，钇和钪），该方法包括以下步骤：（i）使矿石与硫酸接触以获得硫酸盐 的第一组金属，（ii）使混合物高温以将第一组硫酸盐转化为磷酸盐或其它稳定物质，而将第二组转化为硫酸盐，（iii）向冷却的混合物中加入水，选择性溶解 稀土元素和（iv）使稀土溶液进行纯化过程。

    SYSTEM AND METHOD FOR EXTRACTING BASE METAL VALUES FROM OXIDE ORES
    5.
    发明申请
    SYSTEM AND METHOD FOR EXTRACTING BASE METAL VALUES FROM OXIDE ORES 审中-公开
    从氧化物提取基础金属值的系统和方法

    公开(公告)号：WO2009026694A1

    公开(公告)日：2009-03-05

    申请号：PCT/CA2008/001510

    申请日：2008-08-27

    Applicant: VALE INCO LIMITED ,  PEREIRA, Antonio, Clareti ,  MENDES, Flavia, Dutra ,  BERNI, Tiago, Valentim ,  VAHED, Ahmed

    Inventor： PEREIRA, Antonio, Clareti ,  MENDES, Flavia, Dutra ,  BERNI, Tiago, Valentim ,  VAHED, Ahmed

    IPC: C22B23/00 ,  C22B15/00

    CPC classification number: C22B1/08 ,  C22B3/10 ,  C22B23/005 ,  C22B23/04 ,  C22B23/0407 ,  C22B23/0453 ,  C22B23/0461 ,  Y02P10/234

    Abstract: A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the group consisting of at least one of nickel, cobalt and copper. The method includes the steps of: contacting the oxide ore with hydrogen chloride gas to obtain chlorides of the first and second metals and subjecting at least the first and second metals to pyrohydrolysis at a predetermined temperature to decompose the chlorides of the first metal into oxides. The method also includes the step of mixing the oxides of the first metal and the chlorides of the second metal in an aqueous solution to dissolve the chlorides of the second metal and recovering the dissolved ions of the second metal from the aqueous solution.

    Abstract translation: 本公开提供了一种从氧化矿中回收贱金属的方法。 矿石包括选自铁和铝中的至少一种的第一金属和选自镍，钴和铜中的至少一种的第二金属。 该方法包括以下步骤：使氧化矿石与氯化氢气体接触，得到第一和第二金属的氯化物，并使至少第一和第二金属在预定温度下进行热解，以将第一金属的氯化物分解为氧化物。 该方法还包括将第一金属的氧化物和第二金属的氯化物在水溶液中混合以溶解第二金属的氯化物并从水溶液中回收第二金属的溶解离子的步骤。

    "> PROCESS FOR PRODUCTION OF NICKEL CARBONATE
    7.
    发明申请
    PROCESS FOR PRODUCTION OF NICKEL CARBONATE" 审中-公开
    生产碳酸钙的方法“

    公开(公告)号：WO2012129628A3

    公开(公告)日：2013-06-27

    申请号：PCT/BR2012000091

    申请日：2012-03-26

    Applicant: VALE SA ,  BERNI TIAGO VALENTIM ,  PEREIRA ANTONIO CLARETI ,  GUIMARAES FELIPE HILARIO

    Inventor： BERNI TIAGO VALENTIM ,  PEREIRA ANTONIO CLARETI ,  GUIMARAES FELIPE HILARIO

    IPC: C01G53/06

    CPC classification number: C01G53/06

    Abstract: The present invention refers to a process for production of nickel carbonate comprising the following steps: a) Preparing a magnesium salt solution; b) Contacting said solution with a stream of gaseous CO2, keeping pH between 4 and 10 and temperature between 0 and 100°C, during up to 5 hours; c) Contacting the mixture of step b) with a nickel sulphate solution, producing a mixture; d) Performing a separation of liquid and solid portions of said mixture; e) Feeding step a) with said liquid portion. This process recycles the reagent used for producing nickel carbonate and yields a final product that is easy to handle and transport.

    Abstract translation: 本发明涉及一种生产碳酸镍的方法，包括以下步骤：a）制备镁盐溶液; b）在高达5小时内，将所述溶液与气态CO 2气流接触，保持pH在4和10之间，温度在0和100℃之间; c）将步骤b）的混合物与硫酸镍溶液接触，产生混合物; d）进行所述混合物的液体和固体部分的分离; e）进料步骤a）与所述液体部分。 该方法回收用于生产碳酸镍的试剂，并产生易于处理和运输的最终产品。

    "> PROCESS FOR PRODUCTION OF NICKEL CARBONATE
    8.
    发明申请
    PROCESS FOR PRODUCTION OF NICKEL CARBONATE" 审中-公开
    生产碳酸钙的方法“

    公开(公告)号：WO2012129628A2

    公开(公告)日：2012-10-04

    申请号：PCT/BR2012/000091

    申请日：2012-03-26

    Applicant: VALE S/A ,  BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti ,  GUIMARÃES, Felipe Hilario

    Inventor： BERNI, Tiago Valentim ,  PEREIRA, Antonio Clareti ,  GUIMARÃES, Felipe Hilario

    CPC classification number: C01G53/06

    Abstract: The present invention refers to a process for production of nickel carbonate comprising the following steps: a) Preparing a magnesium salt solution; b) Contacting said solution with a stream of gaseous CO 2 , keeping pH between 4 and 10 and temperature between 0 and 100°C, during up to 5 hours; c) Contacting the mixture of step b) with a nickel sulphate solution, producing a mixture; d) Performing a separation of liquid and solid portions of said mixture; e) Feeding step a) with said liquid portion. This process recycles the reagent used for producing nickel carbonate and yields a final product that is easy to handle and transport.

    Abstract translation: 本发明涉及一种生产碳酸镍的方法，包括以下步骤：a）制备镁盐溶液; b）在高达5小时内，将所述溶液与气态CO 2气流接触，保持pH在4和10之间，温度在0和100℃之间; c）将步骤b）的混合物与硫酸镍溶液接触，产生混合物; d）进行所述混合物的液体和固体部分的分离; e）进料步骤a）与所述液体部分。 该方法回收用于生产碳酸镍的试剂，并产生易于处理和运输的最终产品。

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