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    Energy efficient integrated process for production of metals or alloys
    1.
    发明授权
    Energy efficient integrated process for production of metals or alloys 有权

    公开(公告)号：US10392678B2

    公开(公告)日：2019-08-27

    申请号：US15527241

    申请日：2015-12-08

    Applicant: ELKEM AS

    Inventor： Havard Ingvald Moe

    IPC: C22B5/10 ,  C22B4/00 ,  C10L5/44 ,  C10B53/02 ,  C22B4/08

    Abstract: A method for the energy efficient production of metals and alloys by carbothermic reduction of minerals and ores in electric reduction reactors is disclosed. The method includes conveying a wood containing material to at least one pyrolysis step for producing charcoal; conveying the produced charcoal, possibly other carbon-containing reduction materials and metal containing raw materials to the at least one reactor for producing metal or alloy; conveying off-gas from the at least one pyrolysis step and off-gas from the at least one reactor to at least one energy recovery step.

    PROCESS FOR THE PRODUCTION OF SILICON DIOXIDE PARTICLES
    2.
    发明申请
    PROCESS FOR THE PRODUCTION OF SILICON DIOXIDE PARTICLES 有权
    生产二氧化硅颗粒的方法

    公开(公告)号：US20160318769A1

    公开(公告)日：2016-11-03

    申请号：US15107769

    申请日：2015-02-23

    Applicant: ELKEM AS

    Inventor： Bjorn MYHRE ,  Magne DASTOL

    IPC: C01B33/18

    CPC classification number: C01B33/182 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2006/12

    Abstract: The present invention relates to a process for producing spherical submicron particles of amorphous silicon dioxide, in which silicon dioxide and a reducing agent is injected into a reaction vessel of zirconium oxide in molten state, said zirconium oxide is serving as a heat reservoir, in which silicon dioxide reacts with the reducing agent producing a silicon-sub-oxide vapour, said silicon-sub-oxide vapour is oxidised into said spherical submicron silicon oxide particles.

    Abstract translation: 本发明涉及一种制备无定形二氧化硅的球形亚微米颗粒的方法，其中将二氧化硅和还原剂注入熔融状态的氧化锆的反应容器中，所述氧化锆用作储热器，其中 二氧化硅与还原剂反应产生硅 - 氧化物蒸气，所述硅 - 氧化物蒸汽被氧化成所述球形亚微米氧化硅颗粒。

    Apparatus for cooling a body
    7.
    发明授权
    Apparatus for cooling a body 失效
    用于冷却身体的装置

    公开(公告)号：US4482317A

    公开(公告)日：1984-10-13

    申请号：US06395693

    申请日：1982-07-06

    Applicant: Elkem AS

    Inventor： Harald Krogsrud

    IPC: F25D9/00 ,  F27D9/00 ,  F28F1/40 ,  F28F13/00 ,  F27D1/12 ,  F27D3/02 ,  F28F1/00

    CPC classification number: F28F13/003 ,  F27D9/00

    Abstract: The present invention relates to apparatus for cooling an object which is exposed to high temperatures and particularly to cooling by heat transfer to a liquid. According to the invention an internal hose is disposed in a fluid conduit. The hose is permeable to the coolant liquid which is circulated therein so that there is created a substantially stagnant fluid boundary layer between the walls of the tube and the internal hose for efficient heat transfer to the circulating fluid within the hose.

    Abstract translation: 本发明涉及一种用于冷却暴露于高温的物体的装置，特别涉及通过热传递至液体进行冷却的装置。 根据本发明，内部软管设置在流体导管中。 软管对于其中循环的冷却剂液体是可渗透的，使得在管的壁和内部软管之间产生基本上滞留的流体边界层，以有效地传递到软管内的循环流体。

    Method of producing refractory material
    8.
    发明授权
    Method of producing refractory material 失效
    生产耐火材料的方法

    公开(公告)号：US3788866A

    公开(公告)日：1974-01-29

    申请号：US3788866D

    申请日：1972-10-02

    Applicant: ELKEM AS

    Inventor： FLOOD H ,  SELTVEIT A

    IPC: C04B35/14

    CPC classification number: C04B35/14

    Abstract: A METHOD OF PRODUCING SILICA REFRACTORY MATERIALS IS DISCLOSED. FINELY DIVIDED SILICA IS ADMIXED WITH WATER AND THEN LIME IS ADDED TO THE MIXTURE. THEREAFTER A PROPER AMMONIUM COMPOUND IS ADDED TO PRECIPITAT CALCIUM AS A COMPOUND INSOLUBLE IN WATER AFTER WHICH THE PRODUCT IS BAKED PREFERABLY FIRST AT A LOW TEMPERATURE FOR A RELATIVELY LONG PERIOD OF TIME AND THEN AT A HIGH TEMPERATURE FOR A SHORTER PERIOD OF TIME.

    Discharging device for containers in which particulate material is treated with gases in counter-current flow
    9.
    发明授权
    Discharging device for containers in which particulate material is treated with gases in counter-current flow 失效
    排放装置，用于在相当于流量的气体中处理颗粒物质的容器

    公开(公告)号：US3739494A

    公开(公告)日：1973-06-19

    申请号：US3739494D

    申请日：1971-08-17

    Applicant: ELKEM AS

    Inventor： DAHL E ,  HUSTVEDT O

    IPC: F26B25/00 ,  F26B17/12

    CPC classification number: F26B25/002

    Abstract: A discharge device for containers in which lumpy material or agglomerated bodies are treated with gases in counter-current flow is disclosed. The device comprises a holding chamber comprising trap door in spatial relation to openings in the bottom of the discharge apparatus and chains as sidewalls of the holding chamber.

    Abstract translation: 公开了一种容器的排出装置，其中块状材料或附聚体以逆流流动的气体被处理。 该装置包括保持室，其包括与放电装置的底部中的开口空间关系的捕获门，并且链条作为保持室的侧壁。

    Process for the production of silicon dioxide particles
    10.
    发明授权
    Process for the production of silicon dioxide particles 有权

    公开(公告)号：US10011496B2

    公开(公告)日：2018-07-03

    申请号：US15107769

    申请日：2015-02-23

    Applicant: ELKEM AS

    Inventor： Bjorn Myhre ,  Magne Dastol

    IPC: C01B33/18

    CPC classification number: C01B33/182 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2006/12

    Abstract: The present invention relates to a process for producing spherical submicron particles of amorphous silicon dioxide, in which silicon dioxide and a reducing agent is injected into a reaction vessel of zirconium oxide in molten state, said zirconium oxide is serving as a heat reservoir, in which silicon dioxide reacts with the reducing agent producing a silicon-sub-oxide vapor, said silicon-sub-oxide vapor is oxidized into said spherical submicron silicon oxide particles.

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