公开(公告)号：US11897779B2

公开(公告)日：2024-02-13

申请号：US17269795

申请日：2019-08-06

Applicant: RHODIA OPERATIONS ,  EAST CHINA NORMAL UNIVERSITY

Inventor： Fangzheng Su ,  Stéphane Streiff ,  Laurent Garel ,  Peng Wu ,  Jianyong Yin ,  Xinqing Lu

IPC: C01B39/02 ,  C01B39/06 ,  B01J29/70

CPC classification number: C01B39/023 ,  B01J29/70 ,  C01B39/065 ,  C01P2006/14 ,  C01P2006/16

Abstract: It relates to a microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof. It extends to a catalytic hydroxylation, by reaction of a compound of formula (I) with H2O2 in the presence of a catalyst comprising the zeolite.

公开(公告)号：US20240051910A1

公开(公告)日：2024-02-15

申请号：US18259002

申请日：2021-12-22

Applicant: RHODIA OPERATIONS

Inventor： Fangzheng Su ,  Isabelle Storet ,  Stephane Streiff

IPC: C07C51/367 ,  C07C59/06 ,  B01J23/44 ,  B01J25/02 ,  B01J21/18

CPC classification number: C07C51/367 ,  C07C59/06 ,  B01J23/44 ,  B01J25/02 ,  B01J21/18

Abstract: A method for producing glycolic acid includes selectively hydrogenating glyoxylic acid using a catalyst comprising at least one transition metal element, the glycolic acid produced, which has a bio-based carbon content of above 50%. A method for preparing a composition selected from the group consisting of cosmetics, home care products, personal care products, textiles, food, beverages, drugs, fragrances, inks, or paints includes adding the glycolic acid to the composition.