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    Preparation of magnesium aluminum hydride
    1.
    发明授权
    Preparation of magnesium aluminum hydride 失效
    镁铝氢化物的制备

    公开(公告)号：US3639104A

    公开(公告)日：1972-02-01

    申请号：US3639104D

    申请日：1963-03-29

    Applicant: ETHYL CORP

    Inventor： ASHBY EUGENE C ,  FOSTER WALTER E ,  REDMAN HORACE E

    IPC: C01B6/24 ,  C01B6/32 ,  B01D11/00

    CPC classification number: C01B6/24

    Abstract: 1. A method for the preparation of magnesium aluminum hydride which comprises reacting sodium aluminum hydride with an anhydrous magnesium halide in an ether as reaction solvent said ether being selected from the group consisting of unsubstituted alkyl ethers, diethylene glycol dialkyl ethers, and tetrahydrofuran mechanically separating the impure solid reaction products, separating magnesium aluminum hydride etherate from said reaction product by treatment with an ether as extractant for said etherate said ether being selected from the group consisting of unsubstituted alkyl ethers, diethylene glycol dialkyl ethers and tetrahydrofuran removing said extractant from the extract by evaporation thereof to dryness, removing the complexed ether by heating said etherate under reduced pressure to a temperature not in excess of 100* C. and recovering essentially ether-free magnesium aluminum hydride.

    Abstract translation: 1.一种制备氢化镁铝的方法，其包括使氢化铝铝与无水卤化镁在醚中作为反应溶剂，所述醚选自未取代的烷基醚，二甘醇二烷基醚和四氢呋喃机械分离 不纯的固体反应产物，通过用乙醚处理从所述反应产物中分离出氢化镁铝锂盐，所述醚作为萃取剂，所述乙醚所述醚选自未取代的烷基醚，二甘醇二烷基醚和四氢呋喃，从提取物中除去所述萃取剂 通过将其蒸发至干燥，通过在减压下将所述乙醚合物加热至不超过100℃的温度除去络合的醚，并基本上回收无醚的氢化铝铝。

    Process for recovering olefins from mixtures with aluminum alkyls
    6.
    发明授权
    Process for recovering olefins from mixtures with aluminum alkyls 失效
    从铝混合物中回收烯烃的方法

    公开(公告)号：US3557236A

    公开(公告)日：1971-01-19

    申请号：US3557236D

    申请日：1968-03-18

    Applicant: ETHYL CORP

    Inventor： PRESSWOOD JOHN K ,  FOSTER WALTER E

    IPC: C07C7/148 ,  C07F5/06 ,  C07C11/02

    CPC classification number: C07F5/066 ,  C07C7/148 ,  C07C7/14816 ,  C07C2531/14 ,  Y10S585/952 ,  C07C11/02

    Abstract: THE SEPARATION OF OLEFIN MATERIALS FROM TRIALKYL ALUMINUM MATERIALS IS ENHANCED BY REACTING SUCH MIXTURES WITH DRY AIR TO CONVERT A PORTION, AT LEAST ABOUT ONE-THIRD, OF ALL TRIALKYL ALUMINUM MOLECULES TO AT LEAST A MONO ALKOXY ALUMINUM SPECIES AND VAPORIZING AT LEAST A PORTION OF THE OLEFINS AT ELEVATED TEMPERATURE. ENHANCED SEPARATION IS OBTAINED AND ISOMERIZATION, DIMERIZATION AND OTHER REACTIONS ARE OTHERWISE CATALYZED BY TRIALKY ALUMINUM MATERIALS AT THE SEPARATION TEMPERATURES ARE MINIMIZED. THE OLEFIN MATERIALS AND TRIALKYL ALUMINUM MATERIALS CAN BE IN LIQUID OR VAPOR PHASES OR COMBINATIONS. GENERALLY SPEAKING, THE OLEFINS ARE THEN RECOVERED AS A VAPOR AND THE ALUMINUM MATERIALS AS LIQUID.

    Modified aluminum process
    10.
    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。

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