Patents by Inventor Fangzheng Su

Fangzheng Su has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240051910
    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.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 15, 2024
    Applicant: RHODIA OPERATIONS
    Inventors: Fangzheng Su, Isabelle Storet, Stephane Streiff
  • Patent number: 11897779
    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.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: February 13, 2024
    Assignees: East China Normal University, RHODIA OPERATIONS
    Inventors: Fangzheng Su, Stéphane Streiff, Laurent Garel, Peng Wu, Jianyong Yin, Xinqing Lu
  • Publication number: 20210331931
    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.
    Type: Application
    Filed: August 6, 2019
    Publication date: October 28, 2021
    Inventors: Fangzheng SU, Stéphane STREIFF, Laurent GAREL, Peng WU, Jianyong YIN, Xinqing LU
  • Publication number: 20160176794
    Abstract: A process for manufacturing 1,3-propanediol by reacting glycerol with hydrogen in the presence of a supported catalyst, the supported catalyst comprising at least one first compound of an element selected from iridium, rhodium, palladium and platinum and at least one second compound of an element selected from chromium, molybdenum and tungsten, both compounds being supported on alumina, wherein the at least one second compound content in the catalyst expressed in weight of trioxide per weight of catalyst is lower than 20% by weight and wherein the reaction is carried out in a liquid medium containing water in an amount of at least 3 g and less than 900 g of water per kg of liquid medium.
    Type: Application
    Filed: August 8, 2014
    Publication date: June 23, 2016
    Inventor: Fangzheng SU
  • Publication number: 20150225321
    Abstract: A process for manufacturing 1,3-propanediol by reacting glycerol with hydrogen in the presence of a supported catalyst, the supported catalyst comprising at least one iridium compound and at least one rhenium compound, both compounds being supported on a zeolite, wherein the zeolite exhibits an MFI, a MEL, a BEA, a MOR, a FAU, a FER, a MWW, a CHA, a LTA, a ATO or a AEL framework type, and wherein the said zeolite is at least partially in the hydrogen form.
    Type: Application
    Filed: September 23, 2013
    Publication date: August 13, 2015
    Inventor: Fangzheng Su