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    • 2. 发明申请
    • METHOD FOR THE CONTINUOUS PRODUCTION OF GLUTARALDEHYDE
    • 过程戊二醛连续生产
    • WO0116237A2
    • 2001-03-08
    • PCT/EP0008412
    • 2000-08-29
    • BASF AGTHERRE JOERGOOST CARSTEN
    • THERRE JOERGOOST CARSTEN
    • C07B61/00C07C45/60C07C45/82C07C47/12C09D
    • C07C45/60Y02P20/127C07C47/12
    • The invention relates to a method for the continuous production of glutaraldehyde by reacting an alkoxydihydropyrane of general formula (I), wherein R represents C1-C20 alkyl, with water at a temperature in the range of from 0 DEG C to 2000 DEG C and a pressure in the range of from 0.01 bar to 16 bar, and obtaining glutaraldehyde and the alcohol that corresponds to the alkoxy group. Water and alkoxyhydropyrane are continuously fed to a reaction column and at the top of the column a distillate enriched with the alcohol that corresponds to the alkoxy group and at the foot thereof a product enriched with glutaraldehyde is removed. The inventive method provides a simple means for producing glutaraldehyde or C-substituted glutaraldehydes continuously and with an improved purity which requires a minimum of equipment.
    • 本发明涉及一种用于连续制备戊二醛的由式(I)的烷氧基​​二氢吡喃的反应,其中,R在从0℃至200℃,和压力的温度代表C1-C20烷基,与水的过程 在0.01巴至16巴的范围内,以形成戊二醛和相应的醇的烷氧基,其中的水和Alkoxyhydropyran连续供入反应塔和在塔的顶部,以使烷氧基对应的醇富集的馏出物和在底部的戊二醛 富氧产品被除去。 利用本发明的方法,有可能以简单的方式来制造戊二醛或C-取代戊二醛kontinierlich具有增加的纯度,需要的设备是低的。