Assertion: vanillin's derivative | /r/HasProperty | separated in the form of a precipitate
Facets:
value: from the excess hydrosulfite sodium
type: OTHER
Source sentences:
text: The task of the invention is achieved in that in the method of extraction of vanillin from oxidation products of lignin interaction vanrenterghem extracts with aqueous solutions of hydrosulfite sodium NaHSO 3 according to the invention, use is implemented it solutions with a concentration of 320-400 g/liter, and formed vanilla-hydrosulfite derivative is separated from the excess hydrosulfite sodium in the form of a precipitate by filtration, centrifugation or decantation.