Process for preparing bifunctional anion exchange resins, the bifunctional anion exchange resins and their use

摘要

The invention relates to a novel process for preparing bifunctional anion exchange resins by partial quaternisation of weakly basic anion exchangers containing tertiary amino groups by means of conventional alkylating agents; the process is characterised in that the weakly basic anion exchangers are partially loaded with strong acids before the quaternisation. …??The invention also relates to the bifunctional anion exchanger resins obtainable by this process and to their use for the desalination and decolorisation of glucose solutions.