Process for the removal of chlorohydrocarbons from organochlorosilanes
    2.
    发明授权
    Process for the removal of chlorohydrocarbons from organochlorosilanes 失效
    从有机氯硅烷中除去氯代烃的方法

    公开(公告)号:US06169195A

    公开(公告)日:2001-01-02

    申请号:US09484978

    申请日:2000-01-18

    IPC分类号: C07F708

    CPC分类号: C07F7/20 C07F7/16

    摘要: The invention relates to a process for cleavage of chlorohydrocarbons which are present as an impurity in organochlorosilanes, in which the chlorohydrocarbons are brought into contact with steel surfaces which comprise nickel as an alloying constituent, and are cleaved into olefins and hydrogen chloride.

    摘要翻译: 本发明涉及在有机氯硅烷中作为杂质存在的氯代烃的裂解方法,其中氯代烃与包含镍作为合金成分的钢表面接触,并且被切割成烯烃和氯化氢。

    Continuous process for preparing silanes and siloxanes having SiOC groups
    5.
    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 。

    Separation of methylchlorosilanes from high boiling residues of
methylchlorosilane synthesis
    7.
    发明授权
    Separation of methylchlorosilanes from high boiling residues of methylchlorosilane synthesis 失效
    甲基氯硅烷与甲基氯硅烷合成高沸点残留物的分离

    公开(公告)号:US5288892A

    公开(公告)日:1994-02-22

    申请号:US48597

    申请日:1993-04-19

    IPC分类号: C07F7/12 C07F7/08

    摘要: A process for separating methylchlorosilanes from high boiling residues from the methylchlorosilane synthesis, in which cleavable methylchlorodisilanes which are present in the residues and which have at least two chlorine atoms attached to one silicon atom are cleaved with hydrogen chloride in the presence of a catalyst which remains in the reaction mixture, which comprises cleaving the methylchlorodisilanes in the presence of by-products which are more volatile than the cleavable methylchlorodisilanes in the high boiling residues from the methylchlorosilane synthesis which have a boiling point of at least 70.degree. C. under normal conditions and continuously removing the more volatile by-products from the reaction mixture along with the methylchlorosilanes and the noncleavable methylchlorodisilanes.

    摘要翻译: 从甲基氯硅烷合成中分离甲基氯硅烷与高沸点残留物的方法,其中存在于残基中并具有至少两个氯原子连接到一个硅原子上的可切割甲基氯代二硅烷在氯化氢的存在下在残留的催化剂 在反应混合物中,其包括在正常条件下沸点为至少70摄氏度的甲基氯代硅烷合成的高沸点残余物中比可切割甲基氯代二硅烷更易挥发的副产物切割甲基氯代二硅烷; 与甲基氯硅烷和不可裂解的甲基氯代二硅烷连续除去反应混合物中更易挥发的副产物。