公开(公告)号：US20190389792A1

公开(公告)日：2019-12-26

申请号：US16484020

申请日：2018-02-08

Applicant: RHODIA OPERATIONS

Inventor： Martine VIBERT ,  Alain ETCHEBARNE

IPC: C07C49/258 ,  B01D3/34 ,  B01D3/14 ,  B01D1/22 ,  B01D9/00 ,  A23L27/10 ,  B01D3/00

Abstract: The present invention relates to a method for the purification of natural vanillin, comprising a step involving the stripping of a liquid flow F2 containing natural vanillin. The invention also relates to the natural vanillin that can be obtained using the method of the invention, as well as a device for purifying natural vanillin.