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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.

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