Patents by Inventor Nanfu Yan

Nanfu Yan 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: 20240368726
    Abstract: The present disclosure provides a thiodiglycolamic acid extractant, and a preparation method and use thereof, belonging to the technical fields of extractant synthesis and extraction separation in the field of hydrometallurgy. In the present disclosure, the preparation method includes: mixing thiodiglycolic anhydride, an alkyl-substituted secondary amine, and an organic reagent in proportion; subjecting a resulting mixed reactant to a reaction I by stirring in an ice-water bath for 10 min to 60 min, and then to a reaction II by stirring at 20° C. to 50° C. for 6 h to 24 h; after the reaction II is completed, conducting extraction on an obtained product, and subjecting an obtained organic phase to washing, drying, suction filtration, and rotary evaporation to obtain the extractant.
    Type: Application
    Filed: February 21, 2023
    Publication date: November 7, 2024
    Applicant: INSTITUTE OF APPLIED CHEMISTRY, JIANGXI ACADEMY OF SCIENCES
    Inventors: Hongmin CUI, Jinsong SHI, Nanfu YAN, Yuewei LIU, Yaqing WENG, Chaoyang DENG
  • Publication number: 20240140800
    Abstract: The present disclosure relates to a nitrogen-doped porous carbon material and a preparation method and use thereof. In the present disclosure, the preparation method of a nitrogen-doped porous carbon material includes the following steps: conducting carbonization on a biomass material to obtain a carbon source; and mixing the carbon source with a potassium 4-aminobenzoate aqueous solution, and drying and conducting calcination in a protective atmosphere sequentially to obtain the nitrogen-doped porous carbon material. In the preparation method, the potassium 4-aminobenzoate is used as a nitrogen source as well as an activator for preparing the nitrogen-doped porous carbon material. Nitrogen doping is simultaneously completed during the activation, and the nitrogen-doped porous carbon material can be prepared through one-step calcination.
    Type: Application
    Filed: May 12, 2023
    Publication date: May 2, 2024
    Applicant: INSTIT. OF APPL. CHEM, JIANGXI ACADEMY OF SCIENCES
    Inventors: Jinsong Shi, Hongmin Cui, Jianguo Xu, Nanfu Yan, Yuewei Liu, Jiyong Zou, Li Zhang