公开(公告)号：US20160145183A1

公开(公告)日：2016-05-26

申请号：US14892790

申请日：2014-05-19

Applicant: Rhodia Operations

Inventor： Denis REVELANT ,  Stephanie FOUCHER ,  Dominique HORBEZ ,  Philippe MARION

IPC: C07C51/47 ,  C12P7/62 ,  C07C51/43

CPC classification number: C07C51/47 ,  C07C51/00 ,  C07C51/43 ,  C07C51/48 ,  C12P7/62 ,  C07C59/64

Abstract: A process for extraction of ferulic acid present in an aqueous phase, obtained by treatment of at least one plant material, and also containing polysaccharides, is described, said process comprising at least the following steps: 1) the treatment of said plant material followed by a solid/liquid separation to recover a solid phase and an aqueous liquid phase comprising the ferulic acid and said polysaccharides, 2) the treatment of said liquid phase to selectively separate, on the one hand, the polysaccharides and, on the other hand, the ferulic acid present in an aqueous fraction, 3) the concentration of said aqueous fraction containing the ferulic acid so as to recover a ferulic acid-concentrated stream, 4) the recovery of the ferulic acid in solid form.

Abstract translation: 描述了通过处理至少一种植物材料并且还含有多糖获得的水相中提取阿魏酸的方法，所述方法至少包括以下步骤：1）所述植物材料的处理，然后是 固相/液体分离以回收固相和包含阿魏酸和所述多糖的水性液相，2）所述液相的处理一方面选择性地分离多糖，另一方面， 存在于水性级分中的阿魏酸，3）含有阿魏酸的所述含水级分的浓度，以回收阿魏酸浓缩的流，4）以固体形式回收阿魏酸。

公开(公告)号：US20190084925A1

公开(公告)日：2019-03-21

申请号：US15534083

申请日：2015-12-07

Applicant: RHODIA OPERATIONS

Inventor： Valery DAMBRIN ,  Denis REVELANT

IPC: C07C303/32 ,  C07C313/04 ,  C07C303/22 ,  C07C303/00

Abstract: The present invention concerns a method for preparing an oxysulphide and fluorinated derivative of formula (III) Ea-SO3R (III) that comprises bringing a compound of formula (II) Ea-SOOR (II)—Ea representing the fluorine atom or a group having 1 to 10 carbon atoms chosen from the fluoroalkyls, the perfluoroalkyls and the fluoroalkenyls; and—R representing hydrogen, a monovalent cation or an alkyl group; into contact, in the presence of a polar aprotic organic solvent, with an oxidising agent.

公开(公告)号：US20160221939A1

公开(公告)日：2016-08-04

申请号：US15021419

申请日：2014-09-11

Applicant: RHODIA OPERATIONS

Inventor： Denis REVELANT ,  François METZ ,  Valery DAMBRIN ,  Marie CHAUVE

IPC: C07C313/04 ,  C07C303/02 ,  B01J31/02 ,  C07C313/02

CPC classification number: C07C313/04 ,  B01J31/0227 ,  C07C303/02 ,  C07C303/32 ,  C07C313/02 ,  Y02P20/582 ,  C07C309/06

Abstract: The invention concerns a method for preparing an oxysulphide and fluorinated derivative, said method comprising the reacting, in the presence of an organic solvent, of: i) at least one compound of formula Ea-COOR (I), in which Ea represents the fluorine atom or a group having 1 to 10 carbon atoms chosen from fluoroalkyls, perfluoroalkyls and fluoroalkenyls and R represents hydrogen, a monovalent cation or an alkyl group, and ii) a sulphur oxide, said method being such that the initial molar ratio (sulphur oxide/compound of formula (I)) is less than 0.4 and the concentration of sulphur oxide dissolved in the reaction medium is kept constant for the entire duration of the reaction to a value of between 0.2% and 3% by weight by means of continually adding said sulphur oxide to the reaction medium.

Abstract translation: 本发明涉及一种制备氧硫化物和氟化衍生物的方法，所述方法包括在有机溶剂存在下使下列物质反应：i）至少一种式Ea-COOR（I）化合物，其中Ea表示氟 原子或具有1-10个碳原子的基团，其选自氟代烷基，全氟烷基和氟烯基，R代表氢，一价阳离子或烷基，和ii）硫氧化物，所述方法使得初始摩尔比（硫氧化物/ 式（I）化合物）小于0.4，并且在反应介质中溶解的硫氧化物的浓度在反应的整个持续时间内保持恒定为0.2重量％至3重量％之间的值，通过连续添加所述 硫氧化物加入到反应介质中。

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。