Journal of Siberian Federal University. Chemistry: Extraction of Vanillin by Aliphatic Alcohols

Journal of Siberian Federal University. Chemistry / Extraction of Vanillin by Aliphatic Alcohols

Issue: Journal of Siberian Federal University. Chemistry. 2010 3 (3)
Authors: Kaygorodov, Konstantin L.; Chelbina, Yulia V.; Tarabanko, Valery E.; Tarabanko, Nikolay V.
Contact information: Kaygorodov, Konstantin L. : Institute of Chemistry and Chemical Technology SB of RAS , 42 K. Marx, Krasnoyarsk, 660049 Russia; Chelbina, Yulia V. : Institute of Chemistry and Chemical Technology SB of RAS , 42 K. Marx, Krasnoyarsk, 660049 Russia; Tarabanko, Valery E. : Institute of Chemistry and Chemical Technology SB of RAS , 42 K. Marx, Krasnoyarsk, 660049 Russia , e-mail: ; Tarabanko, Nikolay V. : Institute of Chemistry and Chemical Technology SB of RAS , 42 K. Marx, Krasnoyarsk, 660049 Russia
Keywords: vanillin; lignosulfonates; lignin; extraction; aliphatic C6-C8 alcohols; stripping vanillin; bisulfitation
Abstract: Vanillin extraction from alkaline solutions by means of higher-homologues alcohols was studied. Effects of pH as well as vanillin concentration and ion strength on vanillin-aqua-alcohol equilibrium were studied. The data on distribution ratios (D) of vanillin were obtained. The values of distribution ratios at technological pH (about 9-10) are shown to be equal to 1 - 10, that approaches for multistage reverse-flow extraction. If pH values is 11-14 then the distribution ratios values less then 0.2, that makes easy the vanillin stripping process to aqueous phase.
Pages: 228-233
Paper at repository of SibFU: https://elib.sfu-kras.ru/handle/2311/2181