PROCESS AND APPARATUS FOR ROASTING OF GOLD BEARING SULFIDE CONCENTRATE

    公开(公告)号:WO2018162043A1

    公开(公告)日:2018-09-13

    申请号:PCT/EP2017/055336

    申请日:2017-03-07

    IPC分类号: C22B1/10 C22B1/24 C22B11/00

    摘要: The invention is directed to a process and its relating plant for roasting gold bearing sulfide concentrate. Concentrate particles with a carbon content of more than 0.5 wt-% are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1000 °C in a fluidized bed to form a calcine, and wherein at least parts of the calcine are withdrawn from the roaster together with a gas stream as a solid fraction. Concentrate particles with a diameter at least 50 % smaller than the average diameter of the concentrate particles are separated as small particles and/or particles from the gas-solid-fraction are separated in at least one step as small calcine particles. The small particles and/ or at least part of the small calcine particles are pelletized, whereby at least 80 % of the pellets feature a diameter of at least 80 % of the concentrate particles average diameter and that the pellets are fed into the roaster (Fig. 1 ).

    PROCESS AND PLANT FOR PRODUCING COPPER AND/OR COBALT SULFATE
    4.
    发明申请
    PROCESS AND PLANT FOR PRODUCING COPPER AND/OR COBALT SULFATE 审中-公开
    生产铜和/或硫酸钴的工艺和设备

    公开(公告)号:WO2014127808A1

    公开(公告)日:2014-08-28

    申请号:PCT/EP2013/053307

    申请日:2013-02-20

    摘要: The invention is directed to the production of copper and/or cobalt sulfate from copper and/or cobalt sulfide concentrates with low sulfur contents, wherein a feed stream containing copper and/or cobalt sulfide is at least partly converted to copper and/or cobalt sulfate in a roasting stage at temperatures between 600 and 7300°C and in an oxidizing atmosphere, wherein a total waste gas stream, which contains SO 2 , is obtained and withdrawn, and wherein thermal energy and/or a sulfur-containing gas is supplied to the roasting stage as energy carrier via the feed stream and/or a fluidizing gas.

    摘要翻译: 本发明涉及从具有低硫含量的铜和/或硫化钴浓缩物生产铜和/或硫酸钴,其中含有铜和/或硫化钴的进料流至少部分转化为铜和/或硫酸钴 在600-77300℃的焙烧阶段和在氧化气氛中,其中获得并抽出含有SO 2的总废气流,并且向其中供应热能和/或含硫气体 通过进料流和/或流化气体作为能量载体的焙烧阶段。

    FLUDIZING NOZZLE AND FLUIDIZED BED REACTOR
    6.
    发明申请

    公开(公告)号:WO2021250305A1

    公开(公告)日:2021-12-16

    申请号:PCT/FI2020/050399

    申请日:2020-06-09

    IPC分类号: F23C10/20 F27B15/10 F27D3/16

    摘要: Presented is a fluidizing nozzle (1) for introducing fluid into a fluidized bed reactor (2) and a fluidized bed reactor (2). The fluidizing nozzle comprises a nozzle tube (3) limiting at least a part of a feed channel (4) in which fluid is configured to flow, at least one fluid discharge opening (5) arranged near a downstream end (6) of the nozzle tube (3), and a pot-like hood (7), which sealingly closes the nozzle tube (3) with a hood cover (8) of the pot-like hood (7) at the downstream end (6) of the nozzle tube (3) at which said at least one fluid discharge opening (5) is provided. The feed channel (4) is provided with a flow restriction element (10) defining at least one flow restriction feed channel (11) upstream of said at least one fluid discharge opening (5).

    METHOD AND APPARATUS FOR TREATING A LEACHING RESIDUE OF A SULFUR-CONTAINING METAL CONCENTRATE
    7.
    发明申请
    METHOD AND APPARATUS FOR TREATING A LEACHING RESIDUE OF A SULFUR-CONTAINING METAL CONCENTRATE 审中-公开
    处理含硫金属精矿的浸出残渣的方法和装置

    公开(公告)号:WO2017129341A1

    公开(公告)日:2017-08-03

    申请号:PCT/EP2016/082772

    申请日:2016-12-28

    摘要: The present invention describes a process for treating a leaching residue generated in a leaching of a sulfur-containing metal concentrate. Therein, the leaching residueisfed into a reactor, wherein a fluidizing gas is injected into the reactor to form a fluidizedbed containing at least a portion of the leaching residue. So, the leaching residueis heated in the presence of inert particles to a temperature between 600 and 900 °C in an oxidizing atmosphere to produce calcined particles and SO 2 . At least 60 wt-% of the inert particles are removed from the fluidized bed while at least 60 wt-%of the calcined particles are removed together with a gas stream containing off-gases and the fluidizing gas.

    摘要翻译: 本发明描述了处理浸出含硫金属浓缩物中产生的浸出残渣的方法。 其中,将浸出残渣注入反应器中,其中将流化气体注入反应器以形成含有至少一部分浸出残渣的流化床。 因此,将浸出残渣在惰性颗粒存在下在氧化气氛中加热至600-900℃以产生煅烧颗粒和SO 2。 从流化床中除去至少60重量%的惰性颗粒,同时至少60重量%的煅烧颗粒与含有废气和流化气体的气流一起除去。

    PROCESS AND APPARATUS FOR PRODUCING URANIUM OR A RARE EARTH ELEMENT
    8.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING URANIUM OR A RARE EARTH ELEMENT 审中-公开
    生产铀或稀土元素的工艺和设备

    公开(公告)号:WO2017054944A1

    公开(公告)日:2017-04-06

    申请号:PCT/EP2016/065288

    申请日:2016-06-30

    IPC分类号: C22B1/06 C22B59/00 C22B60/02

    摘要: The above mentioned invention describes a process for producing uranium and/or at least one rare earth element selected from the group consisting of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium and yttrium out of an ore. The ore is mixed with sulphuric acid with an concentration of at least 95 wt.-% to a mixture, wherein the mixture is granulated to pellets. The pellets are fed into at least one fluidized bed fluidized by a fluidizing gas for a thermal treatment at temperatures between 200 and 1000 °C. The at least one fluidized bed is developed such that it at least partly surrounds a gas supply tube for a gas or a gas mixture fed into the reactor and the gas or gas mixture is used as a heat transfer medium.

    摘要翻译: 上述发明描述了一种生产铀和/或至少一种选自铈,镝,铒,铕,钆,钬,镧,镥,钕,镨,ium,钐,钪等的稀土元素的方法。 ,铽,ium,镱和钇离开矿石。 将矿石与浓度至少为95重量%的硫酸混合至混合物,其中将混合物造粒成颗粒。 将颗粒进料至至少一个流化床中流化的流化床,用于在200至1000℃之间的温度下进行热处理。 显影至少一个流化床使得其至少部分地围绕供给到反应器中的气体或气体混合物的气体供应管,气体或气体混合物用作传热介质。

    METHOD FOR PARTIAL ROASTING OF COPPER AND/OR GOLD BEARING CONCENTRATES
    9.
    发明申请
    METHOD FOR PARTIAL ROASTING OF COPPER AND/OR GOLD BEARING CONCENTRATES 审中-公开
    铜和/或金轴承浓度的局部转换方法

    公开(公告)号:WO2016180624A1

    公开(公告)日:2016-11-17

    申请号:PCT/EP2016/059170

    申请日:2016-04-25

    摘要: The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the reactor to form a fluidized bed containing at least a portion of the ore particles. The ore particles are heated in the presence of inert particles to a temperature between 500 and 850 °C and are withdrawn from the reactor. At least 60 wt-% of the inert particles form a first zone of the fluidized bed and at least 60 wt-% of the ore particles form a second zone above the first zone.

    摘要翻译: 上述发明描述了从含有铜,镍和/或金的矿石颗粒中除去硫和/或硫化锑的方法。 将矿石颗粒进料到反应器中,其中将流化气体注入反应器以形成含有至少一部分矿石颗粒的流化床。 矿石颗粒在惰性颗粒存在下加热至500至850℃之间的温度,并从反应器中取出。 至少60重量%的惰性颗粒形成流化床的第一区域,并且至少60重量%的矿石颗粒在第一区域上方形成第二区域。