Process for making tetra (methyl-ethyl) lead compounds
    6.
    发明授权
    Process for making tetra (methyl-ethyl) lead compounds 失效
    制备四(甲基 - 乙基)铅化合物的方法

    公开(公告)号:US4069237A

    公开(公告)日:1978-01-17

    申请号:US731922

    申请日:1976-10-13

    IPC分类号: C07F7/26

    CPC分类号: C07F7/26

    摘要: Tetraethyl lead is reacted with 0.5 to 4 moles of CH.sub.3 X per mole of tetraethyl lead, in the presence of a catalytic amount of AlY.sub.3, wherein X and Y are independently chloride, bromide, or iodide, at a temperature up to about 130.degree. C, with the proviso that the reaction is conducted in the presence of an iodine-source selected from AlI.sub.3, elemental iodine, C.sub.1 to C.sub.4 alkyl iodide and the like. The products are tetra(methyl-ethyl) lead redistribution compounds useful as fuel antiknocks.

    摘要翻译: 在催化量的AlY 3存在下,四乙基铅与0.5-4摩尔CH 3 X /摩尔四乙基铅反应,其中X和Y独立地是氯化物,溴化物或碘化物,温度高达约130℃, 条件是反应在选自AlI3,元素碘,C1-C4烷基碘等的碘源存在下进行。 产物是用作燃料抗爆剂的四(甲基 - 乙基)铅再分配化合物。

    Desludging tel with oxygenated water
    7.
    发明授权
    Desludging tel with oxygenated water 失效
    用氧化水去除电话

    公开(公告)号:US3579554A

    公开(公告)日:1971-05-18

    申请号:US3579554D

    申请日:1968-10-31

    申请人: DU PONT

    IPC分类号: C07F7/24 C07F7/26

    CPC分类号: C07F7/24

    摘要: A PROCESS FOR PURIFYING IMPURE TETRAETHYLLEAD BY MIXING SAID IMPURE TETRAETHYLLEAD WITH ATER CONTAINING DISSOLVED OXYGEN THEREBY CONVERTING THE IMPURITIES INTO A SLUDGE PHASE.