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    • 17. 发明授权
    • Continuous process for the production and/or workup of polysaccharide derivatives
    • 多糖衍生物的生产和/或后处理的连续工艺
    • US07868166B2
    • 2011-01-11
    • US10429543
    • 2003-05-02
    • Volker EckhardtMartin LohrieBernd SchriewerHolger Tanneberger
    • Volker EckhardtMartin LohrieBernd SchriewerHolger Tanneberger
    • C08B5/02C08B11/20C08B31/08C08B33/04
    • C08B11/193C08B5/02C08B11/12C08B11/20C08B31/00C08B31/12C08B37/00F42C1/10F42C15/23
    • A process is described for the continuous preparation and/or workup of polysaccharide derivatives by reaction and/or conditioning in a suspension with liquid reaction partners, in which, in accordance with FIG. 1, a) a preferably pumpable suspension stream of solids SE and liquid phase LE, if appropriate preheated to 185° C., is continuously introduced into the top region of a column, if appropriate under a pressure buffer of up to 6×106 Pa, which is virtually filled with the same liquid phase L, or another process-specific liquid phase L of preferably the same temperature, then b) the solids SE sediments freely due to the action of gravity through the liquid phase L to the column bottom, the solids SE converting to the solids SA by reaction and/or conditioning with the liquid phase L and c) possibly ascending gases G are discharged from the column via the column top and d) the solids SA is again continuously discharged as a suspension stream at the column bottom continuously by adding liquid phase LR taken off at the column top at a constant column filling level and transported in a separate connection, or liquid phase LN newly added from the outside to the column bottom.
    • 描述了通过在具有液体反应配偶体的悬浮液中反应和/或调节来连续制备和/或处理多糖衍生物的方法,其中根据图1。 如图1所示,a)如果适当地预热到185℃,固体SE和液相LE的优选可泵送悬浮物流如果适当,在高达6×106Pa的压力缓冲液下连续引入塔的顶部区域 ,其实际上充满相同的液相L或优选相同温度的另一工艺特定液相L,然后b)固体SE由于重力作用而自由沉积通过液相L至塔底, 固体SE通过与液相L反应和/或调节而转化为固体SA,c)可能的上升气体G经由塔顶排出塔,d)固体SA再次作为悬浮液流连续排出 通过在柱顶处以恒定柱填充水平加入液相LR连续输送,并以独立的连接方式输送塔底,或从外部新添加到塔底的液相LN。