Method of preparing active magnesium-hydride or magnesium
hydrogen-storer systems
    25.
    发明授权
    Method of preparing active magnesium-hydride or magnesium hydrogen-storer systems 失效
    制备活性氢化镁或镁氢储存体系的方法

    公开(公告)号:US5199972A

    公开(公告)日:1993-04-06

    申请号:US517001

    申请日:1990-04-30

    IPC分类号: B22F1/02 C01B3/00 C22C1/04

    摘要: A method of preparing an active magnesium-hydride or magnesium hydrogen-storer system which can reversibly take up H.sub.2, comprising contacting finely divided magnesium hydride or metallic magnesium with a solution of a metal complex or of a metal-organic compound of a transition metal of Subgroups IV-VIII of the periodic table, and then removing the solution. The product performs better with regard to speed and efficiency upon repeated hydrogenation and dehydrogenation, as in hydrogen storage and evolution.

    摘要翻译: 一种制备能够可逆地吸收H2的活性氢化镁或镁氢储存系统的方法,包括使细碎的氢化镁或金属镁与金属络合物或金属络合物的金属有机化合物或过渡金属的金属有机化合物 分组IV-VIII的周期表,然后去除溶液。 在氢气储存和进化过程中,反复氢化和脱氢对产品的速度和效率都有较好的效果。

    Process for preparing finely divided highly reactive magnesium and use
thereof
    26.
    发明授权
    Process for preparing finely divided highly reactive magnesium and use thereof 失效
    制备细分高反应性镁的方法及其用途

    公开(公告)号:US4659373A

    公开(公告)日:1987-04-21

    申请号:US669209

    申请日:1984-11-07

    摘要: The present invention relates to a process for preparing a finely divided, highly reactive magnesium from magnesium hydride, magnesium anthracene and/or its derivatives or magnesium butadiene and/or its alkyl or phenyl derivatives, which process is characterized in that the respective magnesium-containing compound is thermally decomposed at a pressure from 10.sup.-6 to 1 bar, the decomposition being carried out in the presence of a co-reactant of a consecutive reaction, or such co-reactant being added only after completion of the precipitation of the magnesium, or in the absence of such co-reactant, the magnesium obtained by said decomposition being isolated as a powder, and to the use of the finely divided, highly reactive magnesium for inserting magnesium into poorly reactive C-X bonds, wherein X denotes heteroatoms such as halogen, oxygen, sulfur, nitrogen, phosphorus, and the resulting organomagnesium compound may be used in a consecutive reaction according to a per se known method, and for the reversible preparation of active magnesium hydride by reaction with molecular hydrogen at a pressure of from 1 to 2 bar and at a temperature of from 150.degree. C. to 250.degree. C.

    摘要翻译: 本发明涉及从氢化镁,蒽和/或其衍生物或丁二烯和/或其烷基或苯基衍生物制备精细分离的高反应性镁的方法,该方法的特征在于相应的含镁 化合物在10-6至1巴的压力下热分解,分解在连续反应的共反应物存在下进行,或者仅在镁的沉淀完成后才加入这种共反应物, 或者在没有这种共反应物的情况下,通过所述分解获得的镁作为粉末分离,并且使用细碎的高反应性镁将镁插入到反应不良的CX键中,其中X表示杂原子如卤素 ,氧,硫,氮,磷,并且所得到的有机镁化合物可以根据本身已知的方法在连续反应中使用,以及 用于通过在1至2巴的压力和150℃至250℃的温度下与分子氢反应来可逆制备活性氢化镁。