A method for continuously removing impurities from activated carbon fibers in a synthesis process of acesulfame

Abstract

This invention discloses a method for continuous carbon fiber impurity removal from sugar syrup during acesulfame potassium production. The method includes the following steps: After light content reduction, the sugar syrup is continuously pumped from the intermediate tank into the adsorption tank via a transfer pump. Activated carbon fibers are then used to adsorb and filter the syrup, removing organic impurities. The qualified sugar syrup undergoes multiple crystallization and decolorization processes, followed by centrifugation, washing, and drying to obtain the final acesulfame potassium product. After adsorption, high-temperature steam regeneration is used for continuous carbon fiber impurity removal, allowing for repeated use. By incorporating this continuous carbon fiber impurity removal method, the potassium acetylsulate content in the acesulfame potassium syrup can be reduced to below 1 ppm, total organic impurities to 10 ppm, and the color value to 1 Hazen, meeting the requirements for continuous industrial production and improving the quality and yield of acesulfame potassium.

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