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    PROCESS TO THERMALLY UPGRADE METAL-CONTAINING LIMONITE OR SAPROLITE ORES VIA MEGNETIC SEPARATION AND THE USE OF THE MAGNETIC CONCENTRATES AS SEEDS
    1.
    发明申请
    PROCESS TO THERMALLY UPGRADE METAL-CONTAINING LIMONITE OR SAPROLITE ORES VIA MEGNETIC SEPARATION AND THE USE OF THE MAGNETIC CONCENTRATES AS SEEDS 审中-公开
    通过间歇分离和使用作为种子的磁性浓度来热升华含金属的有限元素或SAPROLITE ORES的方法

    公开(公告)号：WO2016205906A1

    公开(公告)日：2016-12-29

    申请号：PCT/BR2015/000101

    申请日：2015-07-01

    Applicant: VALE S.A.

    Inventor： ALVARADO, Tanai Lerac Marin ,  GOODALL, Graeme Robertson ,  YANG, Quanmin ,  SCHOLEY, Kenneth

    IPC: C22B1/14 ,  C22B1/245 ,  C22B23/00 ,  C22B23/02

    CPC classification number: C22B9/00 ,  C21B15/00 ,  C22B1/14 ,  C22B1/16 ,  C22B1/26 ,  C22B23/005 ,  C22B23/023 ,  C22C38/08

    Abstract: This invention provides a process to thermally upgrade metal-containing ores comprising the following steps: (1) mixing: (i) ore, (ii) from 4 and up to 15% by weight relative to the ore of reducing agent, (hi) sulphur bearing agent, (iv) metallic-bearing seeding agent, and optionally (v) low temperature binder agent to produce a blend; (2) agglomeration and dry, if required, of the blend formed in step 1 to produce agglomerates; (3) calcination the agglomerates formed in step 2 at reducing atmosphere from a partial pressure of oxygen of Log 10 (pO 2 )= - 12 to Log 10 (p0 2 ) = -15) and at temperature between 950-1150°C to produce a liquid metallic phase that growth and concentrate into metallic particles within the agglomerates; (4) cooling the agglomerates after step 3 to ambient temperature in reducing or inert atmosphere; (5) crushing and grinding the calcine produced in step 4 to a size amenable for magnetic separation of metallic particles, typically represented by a p80 equal or below 25μm; and (6) magnetic concentration of metallic particles by known techniques of magnetic separation including but not limited to magnetic separation by wet or dry means, dewatering and drying. The invention also refers to the magnetic concentrate produced by the process and to the use of the magnetic concentrate to produce a ferronickel or highly metalized nickel containing matte for the production of stainless steel.

    Abstract translation: 本发明提供了一种热升级含金属矿石的方法，包括以下步骤：（1）混合：（i）矿石，（ii）相对于还原剂矿石为4重量％至15重量％ 含硫轴承剂，（iv）含金属的接种剂和任选的（v）低温粘合剂以产生共混物; （2）如果需要，在步骤1中形成的共混物凝聚并干燥以产生附聚物; （3）在还原气氛下从Log10（pO2）= - 12的氧分压到Log10（p02）= -15）和在950-1150℃的温度下煅烧在步骤2中形成的附聚物，以产生液体金属 相生长并浓缩成团聚体内的金属颗粒; （4）在步骤3中将附聚物在还原或惰性气氛中冷却至环境温度; （5）将在步骤4中生产的煅烧物粉碎和研磨成适合金属颗粒磁化分离的尺寸，通常由等于或低于25μm的p80表示; 和（6）通过已知的磁分离技术的金属颗粒的磁性浓度，包括但不限于通过湿法或干法进行磁分离，脱水和干燥。 本发明还涉及通过该方法生产的磁性浓缩物和使用磁性浓缩物来生产镍铁或高度金属化的含镍锍以生产不锈钢。

    HEAT RECOVERY SYSTEM FOR PYROMETALLURGICAL VESSEL USING THERMOELECTRIC/THERMOMAGNETIC DEVICES
    4.
    发明申请
    HEAT RECOVERY SYSTEM FOR PYROMETALLURGICAL VESSEL USING THERMOELECTRIC/THERMOMAGNETIC DEVICES 审中-公开
    使用热电/热电偶装置的血管造血管热回收系统

    公开(公告)号：WO2011110590A1

    公开(公告)日：2011-09-15

    申请号：PCT/EP2011/053537

    申请日：2011-03-09

    Applicant: BHP BILLITON ALUMINIUM TECHNOLOGIES LIMITED ,  BAYER, Ingo ,  RINGSBY OLMSTEAD, Bruce

    Inventor： BAYER, Ingo ,  RINGSBY OLMSTEAD, Bruce

    IPC: C22B1/00 ,  C22B9/00 ,  F27D17/00 ,  F27D19/00 ,  H01L35/30 ,  C25C3/08 ,  H01L37/00 ,  C22B21/00

    CPC classification number: C22B1/00 ,  C22B9/00 ,  C22B21/00 ,  F27D17/004 ,  F27D19/00 ,  H01L35/30 ,  H01L37/00 ,  Y02P10/262

    Abstract: A method and apparatus for harvesting waste thermal energy from a pyrometallurgical vessel (1) and converting that energy to direct electrical current, the method including deriving and controlling a primary fluid flow (103) from a primary heat exchanger (10) associated with the pyrometallurgical vessel (1), providing a secondary heat exchanger (12) physically displaced from the pyrometallurgical vessel (1) which exchanges heat between the primary fluid flow (103) from the primary heat exchanger (10) and a secondary fluid flow (104). The secondary heat exchanger (12) has at least one thermoelectric or magneto-thermoelectric device having two operationally-opposed sides, the operationally-opposed sides being in thermal communication with the primary and secondary fluid flows (103,104) respectively. A temperature difference is maintained between the two operationally-opposed sides of the thermoelectric or magneto-thermoelectric device and electrical energy is generated from the temperature differential. The pyrometallurgical vessel preferably generates a magnetic field (14) in the region surrounding the pyrometallurgical vessel (1) and the secondary heat exchanger (12) having at least one magneto-thermoelectric device is positioned physically displaced from but within the magnetic field (14) surrounding the pyrometallurgical vessel such that the direction of temperature gradient across the secondary heat exchanger is oriented normally to the maximum principal direction of the magnetic field (14) and electrical energy is generated from the temperature differential and magnetic field via the Nernst effect or magneto-thermoelectric effects.

    Abstract translation: 一种用于从火法冶金容器（1）收集废热能并将该能量转换成直流电流的方法和装置，所述方法包括从与火法冶金相关联的主热交换器（10）导出和控制主流体流（103） 容器（1），提供从火法冶金容器（1）物理移位的二次热交换器（12），其在主要热交换器（10）的主要流体流（103）和次级流体流（104）之间交换热量。 二次热交换器（12）具有至少一个具有两个操作相对侧的热电或磁电热元件，所述操作相对侧分别与主流体流和次流体流（103,104）热连通。 在热电或磁 - 热电装置的两个操作相对侧之间保持温差，并且从温差产生电能。 火法冶金容器优选地在围绕火法冶金容器（1）的区域中产生磁场（14），并且具有至少一个磁热电装置的次级热交换器（12）被物理位移地位于磁场（14）内， 围绕火法冶金容器，使得跨越次级热交换器的温度梯度的方向通常取决于磁场（14）的最大主方向，并且通过能斯特效应或磁 - 电磁场从温差和磁场产生电能， 热电效应。

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