Continuous process for preparing silanes and siloxanes having SiOC groups
    1.
    发明授权
    Continuous process for preparing silanes and siloxanes having SiOC groups 失效
    制备具有SiOC基团的硅烷和硅氧烷的连续工艺

    公开(公告)号:US4298753A

    公开(公告)日:1981-11-03

    申请号:US209447

    申请日:1980-11-24

    CPC分类号: C07F7/188 C08G77/06

    摘要: A continuous process for preparing silanes and siloxanes having SiOC groups which comprises (a) introducing in a liquid phase a chlorosilane and a hydroxyl-containing aliphatic compound in parallel flow into a first stage of a first reactor in an amount such that from 0.5 to 0.9 gram-mole of hydroxyl group is present per gram-atom of Si-bonded chlorine; (b) removing the liquid reaction mixture from the first reactor; (c) introducing the reaction mixture at the head of a column used as the second reactor which is maintained at an elevated temperature; (d) adding a hydroxyl-containing aliphatic compound as a gas at the lower end of the column or at a point between the lower end and the upper end of the lower one-third of the column, in an amount at least sufficient to completely react with the Si-bonded chlorine present in the reaction mixture obtained from the first stage and (e) removing the silane containing SiOC groups or polysiloxane containing SiOC groups from the column at a point below the point of addition of the hydroxyl-containing aliphatic compound.

    摘要翻译: 一种用于制备具有SiOC基团的硅烷和硅氧烷的连续方法,其包括(a)以液相方式将氯硅烷和含羟基的脂族化合物平行流入第一反应器的第一阶段,其量使得为0.5至0.9 每克原子的硅键合氯存在克分子的羟基; (b)从第一反应器中除去液体反应混合物; (c)将反应混合物引入用作第二反应器的柱头,保持在升高的温度; (d)在柱的下端或在塔的下三分之一的下端和上端之间的点处加入含羟基的脂族化合物作为气体,其量至少足以完全 与从第一阶段获得的反应混合物中存在的Si键合的氯反应,和(e)在含羟基的脂族化合物的加入点以下的点从塔中除去含有SiOC基团的含硅烷的硅烷或聚硅氧烷 。

    Process for the preparation of organosilicon compounds
    2.
    发明授权
    Process for the preparation of organosilicon compounds 失效
    制备有机硅化合物的方法

    公开(公告)号:US4276426A

    公开(公告)日:1981-06-30

    申请号:US98005

    申请日:1979-11-28

    摘要: This invention relates to the preparation of organosilicon compounds by the addition of a silicon compound containing Si-bonded hydrogen to a compound having an aliphatic multiple bond in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to compounds containing an aliphatic multiple bond. In this process the reactants and the catalyst are continuously introduced into a pipe-shaped reactor while the contents of the reactor, which are maintained in a liquid phase by the application of pressure are circulated in the reactor at a rate of at least 1,000 cm per minute and while the reaction mixture is continuously being removed from the reactor.

    摘要翻译: 本发明涉及有机硅化合物的制备,其中在催化剂存在下,通过加入含有Si键合氢的硅化合物至具有脂肪族多重键的化合物,该催化剂促进将Si键合的氢加成到含有脂族多元素的化合物 键。 在该方法中,将反应物和催化剂连续地引入管状反应器中,同时通过施加压力保持在液相中的反应器的内容物在反应器中以至少1000cm 3的速率循环 同时反应混合物连续地从反应器中除去。