Process for the preparation of polyglycerols
    1.
    发明授权
    Process for the preparation of polyglycerols 失效
    聚甘油的制备方法

    公开(公告)号:US4973763A

    公开(公告)日:1990-11-27

    申请号:US403831

    申请日:1989-09-05

    CPC分类号: C07C41/01 C07C41/16

    摘要: A process for preparation of polyglycerol is provided, comprising the steps of (a) reacting glycerol or diglycerol with hydrogen chloride at between about 340.degree. K. and about 410.degree. K. to yield a mixture that comprises an .alpha.-monochlorohydrin of glycerol or an .alpha.-monochlorohydrin of diglycerol, (b) mixing the .alpha.-monochlorohydrins and an alkali metal glycerolate or an alkali metal diglycerolate at a temperature of between about 320.degree. K. and 410.degree. K. to yield a mixture of alkali metal chloride and glycerol and/or diglycerol and polyglyerol, (c) separating the alkali metal chloride from the glycerols and (d) separating the polyglycerol from glycerol and/or diglycerol.

    摘要翻译: 提供了一种制备聚甘油的方法,其包括以下步骤:(a)在约340℃至约410℃之间使甘油或双甘油与氯化氢反应,得到包含甘油的α-单氯醇或 二甘油的α-单氯醇,(b)在约320℃至410℃之间的温度下混合α-单氯醇和碱金属甘油酸酯或碱金属二甘油酸酯,得到碱金属氯化物和甘油的混合物, (c)从甘油中分离出碱金属氯化物,和(d)从甘油和/或双甘油中分离出聚甘油。