公开(公告)号：US20220306563A1

公开(公告)日：2022-09-29

申请号：US17610761

申请日：2019-06-27

申请人： RHODIA OPERATIONS

发明人： Zhen YAN ,  Bright KUSEMA ,  Stéphane STREIFF

IPC分类号： C07C51/235 ,  B01J23/644 ,  B01J23/42 ,  B01J21/18

摘要： Provided is a method for preparing glycolic acid which comprises oxidizing glycolaldehyde with molecular oxygen in the presence of a solvent and a supported catalyst. Said supported catalyst comprises (i) a noble metal selected from the group consisting of Pt, Pd, Ru and Rh, (ii) Bi and (iii) a support. Advantageously, the supported metallic catalyst is more active than the catalysts used in prior art. Furthermore, the catalyst is more stable at oxygen rich conditions.

公开(公告)号：US20220213018A1

公开(公告)日：2022-07-07

申请号：US17612088

申请日：2019-06-04

申请人： RHODIA OPERATIONS

发明人： Zhen YAN ,  Bright KUSEMA ,  Sergio MASTROIANNI ,  Stéphane STREIFF ,  Philippe MARION

IPC分类号： C07C51/27

摘要： The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepares organic acid, notably glycolic acid and/or glyoxylic acid in a high yield based on bio-based feedstocks.

公开(公告)号：US20190071389A1

公开(公告)日：2019-03-07

申请号：US16083594

申请日：2017-03-10

申请人： RHODIA OPERATIONS

发明人： Lin FANG ,  Zhen YAN ,  Javier DIAZ-MAROTO CARPINTERO

IPC分类号： C07C209/16 ,  C07C209/18 ,  B01J29/74 ,  B01J29/76 ,  B01J29/44 ,  B01J29/46 ,  B01J29/10 ,  B01J29/12 ,  B01J29/22 ,  B01J29/24

摘要： The present invention concerns a process for forming a primary or a secondary amine via amination reaction comprising: reacting an alcohol with an amine in the presence of a zeolite comprising a transition metal chosen in the group consisting of Group 8 to 12 elements of the Periodic Table and any combination thereof.

公开(公告)号：US20170320811A1

公开(公告)日：2017-11-09

申请号：US15525632

申请日：2014-11-10

申请人： RHODIA OPERATIONS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

发明人： Zhen YAN ,  Marc PERA TITUS ,  Armin T. LIEBENS

IPC分类号： C07C209/16 ,  B01J23/63

CPC分类号： C07C209/16 ,  B01J23/44 ,  B01J23/63 ,  C07C211/03 ,  C07C211/07

摘要： Providing a process for forming an amine, such as a primary, a secondary or a tertiary amine, via the direct amination of an alcohol using a catalyst comprising at least a palladium compound on a support comprising cerium oxide.

公开(公告)号：US20160244401A1

公开(公告)日：2016-08-25

申请号：US15027727

申请日：2013-10-15

申请人： RHODIA OPERATIONS ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

发明人： Zhen YAN ,  Mohamad OUSMANE ,  Marc PERA-TITUS ,  Floryan DECAMPO

IPC分类号： C07C209/18 ,  B01J23/63

CPC分类号： C07C209/18 ,  B01J23/63 ,  B01J35/1019 ,  B01J37/0201 ,  C07C209/16 ,  C07C2601/16 ,  C07D215/06 ,  C07D307/14 ,  C07D307/52 ,  C07C211/48 ,  C07C211/12 ,  C07C211/11 ,  C07C211/09 ,  C07C211/10 ,  C07C211/27 ,  C07C211/45

摘要： Disclosed is a process for preparing a primary, a secondary or a tertiary amine via the direct amination of an alcohol in the presence of a catalyst. The catalyst is composed of palladium or a palladium compound and a cerium oxide supporter.

摘要翻译： 公开了一种在催化剂存在下通过醇的直接胺化来制备伯，仲或叔胺的方法。 催化剂由钯或钯化合物和氧化铈载体组成。