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    Modified aluminum process
    11.
    发明授权
    Modified aluminum process 失效
    改性铝工艺

    公开(公告)号：US3860416A

    公开(公告)日：1975-01-14

    申请号：US34421373

    申请日：1973-03-23

    Applicant: ETHYL CORP

    Inventor： GAUTREAUX MARCELIAN F ,  MCCARTHY JOHN H ,  FOSTER WALTER E ,  HUTCHINSON DONALD O ,  FREY JR FREDERICK W

    IPC: C22B21/00 ,  C22B21/02 ,  C22C21/02 ,  C22C39/04

    CPC classification number: C22B21/02 ,  C22B21/0007

    Abstract: A process for producing aluminum from raw alumina ore, especially diaspore clay, including crushing and grinding a natural or raw mined diaspore clay to a desired particle size, beneficiating the clay to obtain a beneficiated diaspore product or mineral, compacting the beneficiated diaspore product along with a carbon reductant into agglomerates such as briquettes, pellets or other suitable form and to a desired size, carbothermically reducing the mineral compacts in an electric arc furnace into an aluminum-silicon alloy, comminuting the aluminumsilicon alloy into a desired particle size, hydroaluminating the aluminum-silicon alloy particles with hydrogen and propylene to form tripropylaluminum and dipropylaluminum hydride, pyrolyzing or decomposing the tripropylaluminum and dipropylaluminum hydride to form an aluminum powder, filtering, washing and drying the aluminum powder, and fluxing and casting the aluminum powder into pigs or other suitable form, thereby forming a substantially pure aluminum product. In a preferred process, slag from the aluminum purification process and fume produced from the carbothermic reduction of the beneficiated diaspore product in the electric arc furnace are transferred to the compaction operation, hydrogen and propylene produced in the decomposition phase are routed to the hydroalumination reaction, and oil from the washing and drying of the aluminum powder is circulated to the decomposition step. In a most preferred process, the silicon rich residue from the hydroalumination reaction is conducted to a furnace wherein lime, silicon-dioxide and iron, if necessary, are added to produce ferro-silicon alloy.

    Abstract translation: 一种用于从原始氧化铝矿石，特别是二水泥粘土生产铝的方法，包括将天然或生的开采的矿石粘土破碎并研磨成所需的粒度，选择粘土以获得精选的二水合物产物或矿物， 将碳还原剂结合到团块中，例如团块，粒料或其它合适的形式和所需的尺寸，将电弧炉中的矿物压块碳热还原成铝 - 硅合金，将铝硅合金粉碎成所需的粒度，水铝酸化 具有氢和丙烯的铝 - 硅合金颗粒形成三丙基铝和氢化二丙基铝，热解或分解三丙基铝和氢化二丙基铝以形成铝粉末，过滤，洗涤和干燥铝粉，以及将铝粉熔化和铸造成猪或 其他合适的形式，从而形成基本上 纯铝产品。 在优选的方法中，将来自铝净化工艺的炉渣和电弧炉中所选择的二水龙头产品的碳热还原产生的烟气转移到压实操作中，在分解阶段产生的氢气和丙烯被引导到水化反应， 并将来自铝粉的洗涤和干燥的油循环到分解步骤。

    Process for preparing aluminum
    12.
    发明授权
    Process for preparing aluminum 失效
    制备铝的方法

    公开(公告)号：US3860415A

    公开(公告)日：1975-01-14

    申请号：US27738372

    申请日：1972-08-02

    Applicant: ETHYL CORP

    Inventor： GAUTREAUX MARCELIAN F ,  MCCARTHY JOHN H ,  FOSTER WALTER E ,  HUTCHINSON DONALD O ,  FREY FREDERICK W

    IPC: C22B21/00 ,  C22B21/02 ,  B22F9/00

    CPC classification number: C22B21/02 ,  C22B21/0007 ,  Y02P10/212

    Abstract: A process for producing aluminum from raw aluminum silicate ore, especially kyanite, including crushing and grinding a natural or raw mined kyanite ore to a desired particle size, beneficiating the ore to form a kyanite concentrate, compacting the concentrate along with a carbon reductant into agglomerates such as briquettes, pellets or other suitable form and to a desired size, carbothermically reducing the ore compacts in an electric arc furnace into an aluminum-silicon alloy, comminuting the aluminumsilicon alloy into a desired particle size, hydroaluminating the aluminum-silicon alloy particles with hydrogen and propylene to form tripropylaluminum and dipropylaluminum hydride, pyrolyzing or decomposing the tripropylaluminum and dipropylaluminum hydride in an oil medium or bath to form an aluminum powder, filtering, washing and drying the aluminum powder, and fluxing and casting the aluminum powder into pigs or other suitable form, thereby forming a substantially pure aluminum product.

    Abstract translation: 一种由原硅酸铝矿石，特别是蓝晶石生产铝的方法，包括将天然或原始的开采的蓝晶石矿石破碎和研磨成所需的粒度，选矿以形成蓝晶石浓缩物，将浓缩物与碳还原剂一起压实成团聚体 例如压块，颗粒或其他合适的形式，并且达到所需尺寸，将电弧炉中的矿石压块碳热还原成铝 - 硅合金，将铝硅合金粉碎成所需的粒度，将铝硅合金 具有氢和丙烯的颗粒形成三丙基铝和氢化二丙基铝，在油介质或浴中热解或分解三丙基铝和二丙基铝氢化物以形成铝粉，过滤，洗涤和干燥铝粉，并将铝粉熔化和铸造成猪 或其他合适的形式，从而形成基本上纯的铝制品 uct。

    ALUMINUM PROCESS
    17.
    发明专利
    ALUMINUM PROCESS 未知

    公开(公告)号：CA985911A

    公开(公告)日：1976-03-23

    申请号：CA175617

    申请日：1973-07-04

    Applicant: ETHYL CORP

    Inventor： GAUTREAUX MARCELIAN F ,  MCCARTHY JOHN H ,  FOSTER WALTER E ,  HUTCHINSON DONALD O ,  FREY FREDERICK W

    IPC: C22B21/00 ,  C22B21/02

    Abstract: A process for producing aluminum from raw aluminum silicate ore, especially kyanite, including crushing and grinding a natural or raw mined kyanite ore to a desired particle size, beneficiating the ore to form a kyanite concentrate, compacting the concentrate along with a carbon reductant into agglomerates such as briquettes, pellets or other suitable form and to a desired size, carbothermically reducing the ore compacts in an electric arc furnace into an aluminum-silicon alloy, comminuting the aluminum-silicon alloy into a desired particle size, hydroaluminating the aluminum-silicon alloy particles with hydrogen and propylene to form tripropylaluminum and dipropylaluminum hydride, pyrolyzing or decomposing the tripropylaluminum and dipropylaluminum hydride in an oil medium or bath to form an aluminum powder, filtering, washing and drying the aluminum powder, and fluxing and casting the aluminum powder into pigs or other suitable form, thereby forming a substantially pure aluminum product.

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