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    PROCESS AND PLANT FOR THE HEAT TREATMENT OF SOLIDS CONTAINING TITANIUM
    1.
    发明申请
    PROCESS AND PLANT FOR THE HEAT TREATMENT OF SOLIDS CONTAINING TITANIUM 审中-公开
    用于热处理含钛固体的方法和装置

    公开(公告)号：WO2005026397A3

    公开(公告)日：2005-07-21

    申请号：PCT/EP2004010276

    申请日：2004-09-15

    Applicant: OUTOKUMPU OY ,  STOCKHAUSEN WERNER ,  BEYZAVI ALI-NAGHI ,  NUBER DIRK

    Inventor： STOCKHAUSEN WERNER ,  BEYZAVI ALI-NAGHI ,  NUBER DIRK

    IPC: B01J8/00 ,  B01J8/18 ,  B01J8/38 ,  C01G23/00 ,  C22B1/10 ,  C22B34/12

    CPC classification number: C22B34/12 ,  B01J8/0055 ,  B01J8/1836 ,  B01J8/388 ,  B01J2208/00725 ,  B01J2219/00006 ,  C22B1/10

    Abstract: This invention relates to a process and a plant for the heat treatment of solids contain­ing titanium. For this purpose, the fine-grained solids are heated to a temperature of 700 to 1000 °C in a reactor (4) with circulating fluidized bed and are partly discharged from the reactor (4) together with waste gases into a downstream separator (9). In the same, the solids are separated from the waste gases and are recirculated to the reactor (4) at least partly and/or phase by phase. Downstream of the reactor (4) and/or the separator (9) an injection cooler (13) is provided, in which the solids are cooled to below 250 °C by injecting a coolant. Downstream of the injection cooler (13) a fluidized-bed cooler (16) can be provided for the further cooling of the solids.

    Abstract translation: 本发明涉及用于含钛固体的热处理的方法和设备。 为此，将细颗粒固体在具有循环流化床的反应器（4）中加热至700至1000℃的温度，并与废气一起从反应器（4）部分排出至下游分离器（9 ）。 同样，将固体与废气分离并且至少部分地和/或逐相地再循环至反应器（4）。 在反应器（4）和/或分离器（9）的下游提供注入冷却器（13），其中通过注入冷却剂将固体冷却到低于250℃。 注入冷却器（13）的下游可以设置流化床冷却器（16）以进一步冷却固体。

    PROCESS AND PLANT FOR REDUCING SOLIDS CONTAINING IRON OXIDE
    2.
    发明申请
    PROCESS AND PLANT FOR REDUCING SOLIDS CONTAINING IRON OXIDE 审中-公开
    用于还原含氧化铁的固体的方法和设备

    公开(公告)号：WO2005014866A3

    公开(公告)日：2005-03-31

    申请号：PCT/EP2004007904

    申请日：2004-07-16

    Applicant: OUTOKUMPU OY ,  SNEYD STUART ,  HIRSCH MARTIN ,  NUBER DIRK

    Inventor： SNEYD STUART ,  HIRSCH MARTIN ,  NUBER DIRK

    IPC: C21B13/00 ,  C22B1/248 ,  C22B5/14 ,  C22B5/18

    CPC classification number: C22B5/18 ,  C21B13/0033 ,  C21B13/008 ,  C21B13/0086 ,  C22B1/248 ,  C22B5/14 ,  Y02P10/136

    Abstract: This invention relates to a process for reducing solids containing iron oxide, such as iron ore, in which fine-grained solids are heated and at least partly calcined in a pre heating stage (2, 9). In a first fluidized-bed reactor (14) downstream of the preheating stage (2, 9), the solids are prereduced and reduced further in a second fluidized-bed reactor (16). Downstream of the second reactor (16) a briquetting stage (20) is pro vided, in which the solids are briquetted at a temperature above 500°C To increase the energy efficiency of the process and improve the flowability of the solids in the briquetting stage (20), magnesite is added to the preheating stage (2, 9) together with the solids containing iron oxide, which magnesite is at least partly calcined in the preheating stage (2, 9) to obtain magnesium oxide. Furthermore, the invention relates to a corresponding plant.

    Abstract translation: 本发明涉及一种用于减少含有氧化铁（例如铁矿石）的固体的方法，其中细粒固体在预加热阶段（2,9）中被加热并且至少部分地被煅烧。 在预热阶段（2,9）下游的第一流化床反应器（14）中，将固体预还原并在第二流化床反应器（16）中进一步还原。 在第二反应器（16）的下游提供压块阶段（20），其中固体在高于500℃的温度下压块。为了提高该过程的能量效率并且改进在压块阶段中固体的流动性 （20）中，将菱镁矿与含有氧化铁的固体一起加入到预热阶段（2,9）中，该菱镁矿在预热阶段（2,9）中至少部分地煅烧以获得氧化镁。 此外，本发明涉及相应的设备。

    10.
    发明专利
    未知

    公开(公告)号：BR0317675A

    公开(公告)日：2005-11-22

    申请号：BR0317675

    申请日：2003-12-10

    Applicant: OUTOKUMPU OY

    Inventor： NUBER DIRK ,  STOCKHAUSEN WERNER ,  STROEDER MICHAEL

    IPC: B01J8/00 ,  B01J8/18 ,  C04B11/028 ,  F27B15/02 ,  F27B15/10 ,  F27B15/16

    Abstract: The present invention relates to a method for the heat treatment of fine-grained solids, in particular gypsum, in which the solids are heated to a temperature of 50 to 1000° C. in a fluidized bed reactor (1), and to a corresponding plant. To improve the energy utilization, it is proposed to introduce a first gas or gas mixture from below through a preferably central gas supply tube (3) into a mixing chamber (21) of the reactor (1), the gas supply tube (3) being at least partly surrounded by a stationary annular fluidized bed (2) which is fluidized by supplying fluidizing gas, and to adjust the gas velocities of the first gas or gas mixture as well as of the fluidizing gas for the annular fluidized bed (2) such that the particle Froude numbers in the gas supply tube (3) are between 1 and 100, in the annular fluidized bed (2) between 0.02 and 2 and in the mixing chamber (21) between 0.3 and 30.

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