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.

公开(公告)号：US20160039732A1

公开(公告)日：2016-02-11

申请号：US14762384

申请日：2014-01-20

Applicant: RHODIA OPERATIONS

Inventor： Hubert GAYET ,  Denis REVELANT ,  Martine VIBERT

IPC: C07C45/82 ,  B01D3/14 ,  B01D3/10

CPC classification number: C07C47/58 ,  B01D3/10 ,  B01D3/141 ,  B01D3/143 ,  C07C45/82

Abstract: The invention relates to a method for the purification of natural vanillin, comprising at least one step in which the natural vanillin is evaporated.

Abstract translation: 本发明涉及一种纯化天然香草醛的方法，包括至少一个其中天然香草醛被蒸发的步骤。