The Influence of Experimental Factors on the Sorption of Vanillin by a Macroporous Highly Basic Anion Exchanger with a Low Degree of Cross-Linking

Resumo

The influence of an initial form of a macroporous highly basic anion exchanger with a low degree of cross-linking on the sorption of vanillin has been studied and the effect of experimental factors on the shape of the output curve for the sorption has been determined. By varying different process parameters upon hydroxybenzaldehyde absorption by an OH-form AV-17-2P anion exchanger, it has been shown that the working and the total capacities of the sorbent depend on the concentration and flow rate of an initial solution in the studied range of these parameters: under dynamic conditions, the sorption capacity of the anion exchanger decreases as temperature is elevated. It has been found that the macroporous highly basic sorbent with a low degree of cross-linking may also be used for extraction of some other phenolic compounds under dynamic conditions.